LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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Ordering number : ENA0858
CMOS IC
LC87F76C8A FROM 128K byte, RAM 4K byte on-chip
8-bit 1-chip Microcontroller
Overview
The LC87F76C8A is an 8-bit microcomputer that, centered around a CPU running at a minimum bus cycle time of
83.3ns, integrates on a single chip a number of hardware features such as 128K-byte flash ROM (onboard
programmable), 4K-byte RAM, an on-chip debugger, an LCD controller/driver, a sophisticated 16-bit timer/counter
(may be divided into 8-bit timers), a 16-bit timer (may be divided into 8-bit timers or 8-bit PWMs), four 8-bit timers with
a prescaler, a base timer serving as a time-of-day clock, a day and time counter, a synchronous SIO interface (with
automatic block transmission/reception capabilities), an asynchronous/synchronous SIO interface, a UART interface (full
duplex), a 8-bit 12-channel AD converter, two 12-bit PWM channels, a high-speed clock counter, a system clock
frequency divider, a small signal detector, an infrared remote controller receiver function, and a 22-source 10-vector
interrupt feature.
Features
Flash ROM
Capable of on-board-programming with a wide range of souce voltages: 3.0 to 5.5V.
Block-erasable in 2-byte units
131072 × 8 bits (LC87F76C8A)
RAM
4096 × 9 bits (LC87F76C8A)
Minimum Bus Cycle Time
83.3ns (12MHz)
125ns (8MHz)
250ns (4MHz)
VDD=3.0 to 5.5V
VDD=2.5 to 5.5V
VDD=2.2 to 5.5V
Note: The bus cycle time here refers to the ROM read speed.
* This product is licensed from Silicon Storage Technology, Inc. (USA), and manufactured and sold by
SANYO Semiconductor Co., Ltd.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
Ver.0.09
30409HKIM 20070523-S00003 No.A0858-1/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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Minimum Instruction Cycle Time (tCYC)
250ns (12MHz)
375ns (8MHz)
750ns (4MHz)
VDD=3.0 to 5.5V
VDD=2.5 to 5.5V
VDD=2.2 to 5.5V
LC87F76C8A
Ports
Normal withstand voltage I/O ports
Ports whose I/O direction can be designated in 1-bit units 23 (P1n, P30 to P31, P70 to P73, P8n, XT2)
Ports whose I/O direction can be designated in 4-bit units 8 (P0n)
Normal withstand voltage input port
1 (XT1)
LCD ports
Segment output
32 (S00 to S31)
Common output
4 (COM0 to COM3)
Bias terminals for LCD driver
3 (V1 to V3)
Other functions
Input/output ports
32 (PAn, PBn, PCn, PDn,)
Input ports
7 (PLn)
Dedicated oscillator ports
2 (CF1, CF2)
Reset pins
1 (RES)
Power pins
6 (VSS1 to VSS3, VDD1 to VDD3)
LCD Controller
1) Seven display modes are available (static, 1/2, 1/3, 1/4 duty × 1/2, 1/3 bias)
2) Segment output and common output can be switched to general-purpose input/output ports
Small Signal Detection (MIC signals etc)
1) Counts pulses with the level which is greater than a preset value
2) 2-bit counter
Timers
Timer 0: 16-bit timer/counter with two capture registers.
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with 8-bit capture registers) × 2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with 8-bit capture registers)
+ 8-bit counter (with two 8-bit capture registers)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with 16-bit capture registers)
Mode 3: 16-bit counter (with 16-bit capture registers)
Timer 1: 16-bit timer that supports PWM/toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs)
+ 8-bit timer with an 8-bit prescaler (with toggle outputs)
Mode 1: 8-bit PWM with an 8-bit prescaler × 2 channels
Mode 2: 16-bit timer/counter with an 8-bit prescaler (with toggle outputs)
(toggle outputs also possible from the lower-order 8 bits)
Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs)
(The lower-order 8 bits can be used as PWM.)
Timer 4: 8-bit timer with a 6-bit prescaler
Timer 5: 8-bit timer with a 6-bit prescaler
Timer 6: 8-bit timer with a 6-bit prescaler (with toggle output)
Timer 7: 8-bit timer with a 6-bit prescaler (with toggle output)
Base timer
1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock,
and timer 0 prescaler output.
2) Interrupts programmable in 5 different time schemes
Day and time counter
1) Used with a base timer, the day and time counter can be used as a 65000 day + minute + second counter.
No.A0858-2/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
High-speed Clock Counter
1) Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz).
2) Can generate output real-time.
SIO
SIO0: 8-bit synchronous serial interface
1) LSB first/MSB first mode selectable
2) Built-in 8-bit baudrate generator (maximum transfer clock cycle = 4/3 tCYC)
3) Automatic continuous data transmission (1 to 256 bits specifiable in 1-bit units, suspension and resumption of
data transmission possible in 1-byte units)
SIO1: 8-bit asynchronous/synchronous serial interface
Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks)
Mode 1: Asynchronous serial I/O (half-duplex, 8-data bits, 1-stop bit, 8 to 2048 tCYC baudrates)
Mode 2: Bus mode 1 (start bit, 8-data bits, 2 to 512 tCYC transfer clocks)
Mode 3: Bus mode 2 (start detect, 8-data bits, stop detect)
UART
Full duplex
7/8/9 bit data bits selectable
1 stop bit (2-bit in continuous data transmission)
Built-in baudrate generator
* When using UART, set P0LDDR (PODDR: Bit0) to “0”
AD Converter: 12 bits × 12 channels
PWM: Multi frequency 12-bit PWM × 2 channels
Infrared Remote Control Receiver Circuit
1) Noise reduction function
(Time constant of noise reduction filter: approx. 120μs, when selecting a 32.768kHz crystal oscillator as a
reference clock.)
2) Xtal HOLD mode cancellation function
Watchdog Timer
External RC watchdog timer
Interrupt and reset signals selectable
Clock Output Function
1) Can output selected oscillation clock 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64 as system clock.
2) Can output the source oscillation clock for the sub clock.
No.A0858-3/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Interrupts
22 sources, 10 vector addresses
1) Provides three levels (low (L), high (H), and highest (X)) of multiplex interrupt control. Any interrupt requests of
the level equal to or lower than the current interrupt are not accepted.
2) When interrupt requests to two or more vector addresses occur at the same time, the interrupt of the highest
level takes precedence over the other interrupts. For interrupts of the same level, the interrupt into the smallest
vector address takes precedence.
No. Vector Address
Level
Interrupt Source
1 00003H
X or L
INT0
2 0000BH
X or L
INT1
3 00013H
H or L
INT2/T0L/remote control receiver
4 0001BH
H or L
INT3/base timer
5 00023H
H or L
T0H
6 0002BH
H or L
T1L/T1H
7 00033H
H or L
SIO0/UART1 receive
8 0003BH
H or L
SIO1/UART1 transmit
9 00043H
H or L
ADC/MIC/T6/T7/PWM4, PWM5
10 0004BH
H or L
Port 0/T4/T5
Priority levels X > H > L
Of interrupts of the same level, the one with the smallest vector address takes precedence.
IFLG (List of interrupt source flag function)
1) Shows a list of interrupt source flags that caused a branching to a particular vector address
Subroutine Stack Levels: 2048 levels maximum (The stack is allocated in RAM.)
High-speed Multiplication/Division Instructions
16 bits × 8 bits
(5 tCYC execution time)
24 bits × 16 bits
(12 tCYC execution time)
16 bits ÷ 8 bits
(8 tCYC execution time)
24 bits ÷ 16 bits
(12 tCYC execution time)
Oscillation Circuits
RC oscillation circuit (internal): For system clock
CF oscillation circuit: For system clock, with internal Rf and external Rd
Crystal oscillation circuit: For low-speed system clock, with internal Rf and external Rd
Multifrequency RC oscillation circuit (internal): For system clock
1) Adjustable in ±4% (typ) increments from the selected center frequency.
2) Measures the frequency of the source oscillation clock using the input signal from XT1 as the reference.
System Clock Divider Function
Can run on low current.
The minimum instruction cycle selectable from 300ns, 600ns, 1.2μs, 2.4μs, 4.8μs, 9.6μs, 19.2μs, 38.4μs,
and 76.8μs (at a main clock rate of 10MHz).
System Clock Divider Function
Can run on low current.
The minimum instruction cycle selectable from 300ns, 600ns, 1.2μs, 2.4μs, 4.8μs, 9.6μs, 19.2μs, 38.4μs, and 76.8μs
(at a main clock rate of 10MHz).
System Clock Multiplier Function
Allows the 2 or 3 times the clock frequency to be selected when the crystal oscillation output is used as the system
clock.
No.A0858-4/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Standby Function
HALT mode: Halts instruction execution while allowing the peripheral circuits to continue operation.
(Some parts of the serial transfer function stops operation.)
1) Oscillation is not stopped automatically.
2) Canceled by a system reset or occurrence of an interrupt
HOLD mode: Suspends instruction execution and the operation of the peripheral circuits.
1) The CF, RC, X’tal, and multifrequency RC oscillators automatically stop operation.
2) There are three ways of resetting the HOLD mode.
(1) Setting the reset pin to the low level
(2) Setting at least one of the INT0, INT1, and INT2, pins to the specified level
(3) Having an interrupt source established at port 0
X'tal HOLD mode: Suspends instruction execution and the operation of the peripheral circuits except the base timer
and infrared remote controller circuit.
1) The CF, RC, and multifrequency RC oscillators automatically stop operation
2) The state of crystal oscillation established when the X'tal HOLD mode is entered is retained.
3) There are five ways of resetting the X'tal HOLD mode.
(1) Setting the reset pin to the low level
(2) Setting at least one of the INT0, INT1, and INT2 pins to the specified level
(3) Having an interrupt source established at port 0
(4) Having an interrupt source established in the base timer circuit
(5) Having an interrupt source established in the infrared remote control receiver circuit
On-chip Debugger
Supports software debugging with the IC mounted on the target board.
Package Form
QIP80(14×14):
TQFP80J(12×12):
Lead-free type
Lead-free type
Development Tools
On-chip debugger: TCB87-TypeB + LC87F76C8A
Flash ROM Programming Board
Package
Programming Boards
QIP80(14×14)
W87F71256QF
TQFP80J(12×12)
W87F71256SQ
Flash ROM Programmer
Maker
Flash Support Group, Inc
(Single)
Flash Support Group, Inc
(Gang)
Model
AF9708/AF9709/AF9709B
(including models manufactured by Ando
Electric Co., Ltd.)
AF9723 (main unit)
(including models manufactured by Ando
Electric Co., Ltd.)
AF9833 (unit)
(including models manufactured by Ando
Electric Co., Ltd.)
SANYO
SKK(SANYO FWS)
Note: Check for the latest version.
Supported Version (Note)
Application Version: After 1.04
Chip Data Version: After 2.09
Device
LC87F76C8A
LC87F76C8A
LC87F76C8A
Same Package and Pin Assignment as Mask ROM Version.
1) LC877600 series options can be specified by using flash ROM data. Thus the board used for mass production can
be used for debugging and evaluation without modifications.
2) If the program for the mask ROM version is used, the size of the available ROM/RAM spaces is the same as
that of the mask ROM version.
No.A0858-5/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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Package Dimensions
unit : mm (typ)
3255
60
61
17.2
14.0
41
40
LC87F76C8A
Package Dimensions
unit : mm (typ)
3290
14.0
12.0
60 41
61 40
80
1
(0.83)
0.65
21
0.25 20
0.15
80
1
(1.25)
0.5
21
20
0.2
0.125
SANYO : QFP80(14X14)
Pin Assignment
SANYO : TQFP80J(12X12)
COM0/PL0
COM1/PL1
COM2/PL2
COM3/PL3
P30/ PWM4
VSS3
VDD3
P31/ PWM5
P00/UTX1*
P01/URX1*
P02
P03
P04
P05/CKO
P06/T6O
P07/T7O
P10/SO0
P11/SI0/SB0
P12/SCK0
P13/SO1
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
LC87F76C8A
40 VSS2
39 VDD2
38 S14/PB6
37 S13/PB5
36 S12/PB4
35 S11/PB3
34 S10/PB2
33 S9/PB1
32 S8/PB0
31 S7/PA7
30 S6/PA6
29 S5/PA5
28 S4/PA4
27 S3/PA3
26 S2/PA2
25 S1/PA1
24 S0/PA0
23 P73/INT3/T0IN/RMIN
22 P72/INT2/T0IN/NKIN
21 P71/INT1/T0HCP/AN9
Top view
*When using UART, set P0LDDR (PODDR: Bit0) to “0”
SANYO: QFP80(14×14) “Lead-free Type”
SANYO: TQFP80J(12×12) “Lead-free Type”
No.A0858-6/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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System Block Diagram
LC87F76C8A
Interrupt control
Standby control
CF
RC
VMRC
X’tal
SIO0
SIO1
Timer 0
(High speed clock counter)
Timer 1
Timer 4
Timer 5
Timer 6
Timer 7
LCD
controller
UART1
Base timer
PWM/PWM5
Bus interface
Port 0
Port 1
Port 3
Port 7
Port 8
INT0 to INT3
Noise rejection filter
Small signal detector
ADC
Infrared remote
control receiver
Day and time
counter
IR PLA
Flash ROM
PC
ACC
B register
C register
ALU
PSW
RAR
RAM
Stack pointer
Watchdog
timer
On-chip debugger
No.A0858-7/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Pin Description
Pin Name
VSS1
VSS2
VSS3
VDD1
VDD2
VDD3
PORT0
I/O
-
-
I/O
P00 to P07
PORT1
P10 to P17
I/O
PORT3
P30 to P31
I/O
PORT7
P70 to P73
I/O
- power supply pin
Description
+ power supply pin
• 8-bit I/O port
• I/O specifiable in 4-bit units
• Pull-up resistors can be turned on and off in 4-bit units.
• Input for HOLD release
• Input for port 0 interrupt
• Shared pins
P00: UART1 transmit *
P01: UART1 receive *
P05: Clock output (system clock/subclock selectable)
P06: Timer 6 toggle output
P07: Timer 7 toggle output
* When using UART, set P0LDDR (PODDR: Bit0) to “0”
• 8-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units.
• Shared pins
P10: SIO0 data output
P11: SIO0 data input/bus I/O
P12: SIO0 clock I/O
P13: SIO1 data output
P14: SIO1 data input/bus I/O
P15: SIO1 clock I/O
P16: Timer 1 PWML output
P17: Timer 1PWMH output/beeper output
• 2-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units.
• Shared pins
P30: PWM4 output
P31: PWM5 output
• 4-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units.
• Shared pins
P70: INT0 input/HOLD release input/timer 0L capture input/watchdog timer output
P71: INT1 input/HOLD release input/timer 0H capture input
P72: INT2 input/HOLD release input/timer 0 event input/timer 0L capture input/
high speed clock counter input
P73: INT3 input (with noise filter)/timer 0 event input/timer 0H capture input/
infrared remote control receiver input
AD converter input ports: AN8 (P70), AN9 (P71)
• Interrupt acknowledge type
Rising
Falling
Rising &
Falling
H level
L level
INT0
INT1
INT2
INT3
enable
enable
enable
enable
enable
enable
enable
enable
disable
disable
enable
enable
enable
enable
disable
disable
enable
enable
disable
disable
Option
No
No
Yes
Yes
Yes
No
Continued on next page.
No.A0858-8/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Continued from preceding page.
Pin Name
I/O
Description
PORT8
P80 to P87
S0/PA0 to
S7/PA7
S8/PB0 to
S15/PB7
S16/PC0 to
S23/PC7
S24/PD0 to
S31/PD7
COM0/PL0 to
COM3/PL3
V1/PL4 to
V3/PL6
RES
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Input
• 8-bit I/O port
• I/O specifiable in 1-bit units
• Shared pins
AD converter input ports: AN0 to AN7
Small signal detector input port: MICIN (P87)
• Segment output for LCD
• Can be used as general-purpose I/O port (PA)
• Segment output for LCD
• Can be used as general-purpose I/O port (PB)
• Segment output for LCD
• Can be used as general-purpose I/O port (PC)
• Segment output for LCD
• Can be used as general-purpose I/O port (PD)
• Common output for LCD
• Can be used as general-purpose input port (PL)
• LCD drive bias power supply
• Can be used as general-purpose input port (PL)
• Shared pins
On-chip debugger pins: DBGP0 (V1) to DBGP2 (V3)
Reset pin
XT1 Input • 32.768kHz crystal oscillator input pin
• Shared pins
General-purpose input port
Must be connected to VDD1 if not to be used.
AD converter input port: AN10
XT2 I/O • 32.768kHz crystal oscillator output pin
• Shared pins
General-purpose I/O port
Must be set for oscillation and kept open if not to be used.
AD converter input port: AN11
CF1 Input Ceramic resonator input pin
CF2 Output Ceramic resonator output pin
Option
No
No
No
No
No
No
No
No
No
No
No
No
No.A0858-9/24
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8-bit 1-chip Microcontroller

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LC87F76C8A
Port Output Types
The table below lists the types of port outputs and the presence/absence of a pull-up resistor.
Data can be read into any input port even if it is in the output mode.
Port Name
Option Selected
in Units of
Option Type
Output Type
Pull-up Resistor
P00 to P07
each bit
1 CMOS
Programmable (Note)
2 N-channel open drain
No
P10 to P17
each bit
1 CMOS
Programmable
2 N-channel open drain
Programmable
P30 to P31
each bit
1 CMOS
Programmable
2 N-channel open drain
Programmable
P70
- No N-channel open drain
Programmable
P71 to P73
- No CMOS
Programmable
P80 to P87
- No N-channel open drain
No
S0/PA0 to S31/PD7
- No CMOS
Programmable
COM0/PL0 to COM3/PL3
-
No Input only
No
V1/PL4 to V3/PL6
- No Input only
No
XT1 - No Input only
No
XT2 - No Output for 32.768kHz crystal oscillator (Nch-open
No
drain when in general-purpose output mode)
Note: Programmable pull-up resistors for port 0 are controlled in 4 bit units (P00 to 03, P04 to 07).
*1 Connect the IC as shown below to minimize the noise input to the VDD1 pin.
Be sure to electrically short the VSS1, VSS2, and VSS3 pins.
Power
supply
For backup *2
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
*2 The internal memory is sustained by VDD1. If none of VDD2 and VDD3 are backed up, the high level output at the
ports are unstable in the HOLD backup mode, allowing through current to flow into the input buffer and thus
shortening the backup time.
Make sure that the port outputs are held at the low level in the HOLD backup mode.
No.A0858-10/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Absolute Maximum Ratings at Ta = 25°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Maximum supply
voltage
Symbol
VDD max
Pin/Remarks
Conditions
VDD1,VDD2, VDD3
VDD1=VDD2=VDD3
VDD[V]
min
-0.3
Specification
typ max
unit
+6.5
Supply voltage for
LCD
VLCD
V1/PL4, V2/PL5,
V3/PL6
VDD1=VDD2=VDD3
-0.3 VDD
Input voltage
Input/output
voltage
VI(1)
VIO(1)
• Port L
• XT1, CF1, RES
• Ports 0, 1, 3, 7, 8
• Ports A, B, C, D
• XT2
V
-0.3 VDD+0.3
-0.3 VDD+0.3
Peak output
current
IOPH(1)
Ports 0, 1
• CMOS output selected
• Per applicable pin
-10
IOPH(2)
Port 3
• CMOS output selected
• Per applicable pin
-20
IOPH(3)
Ports 71 to 73
Per applicable pin
-5
IOPH(4)
Ports A, B, C, D
Per applicable pin
-5
Average
output current
(Note 1-1)
IOMH(1)
IOMH(2)
Ports 0, 1
Port 3
• CMOS output selected
• Per applicable pin
• CMOS output selected
• Per applicable pin
-7.5
-15
IOMH(3)
Ports 71 to 73
Per applicable pin
-3
IOMH(4)
Ports A, B, C, D
Per applicable pin
-3
Total output
current
ΣIOAH(1)
Ports 0, 1, 31
Total of currents at all
applicable pins
-25
ΣIOAH(2)
Port 30
Total of currents at all
applicable pins
-15
ΣIOAH(3)
ΣIOAH(4)
Ports 0, 1, 3
Ports 71 to 73
Total of currents at all
applicable pins
Total of currents at all
applicable pins
-40
mA
-5
ΣIOAH(5)
Ports A, B
Total of currents at all
applicable pins
-25
ΣIOAH(6)
Ports C, D
Total of currents at all
applicable pins
-25
ΣIOAH(7)
Ports A, B, C, D
Total of currents at all
applicable pins
-45
Peak output
current
IOPL(1)
IOPL(2)
Ports 0, 1
Port 3
Per applicable pin
Per applicable pin
20
30
IOPL(3)
• Ports 7, 8
• XT2
Per applicable pin
10
IOPL(4)
Ports A, B, C, D
Per applicable pin
10
Average
output current
(Note 1-1)
IOML(1)
IOML(2)
IOML(3)
Ports 0, 1
Port 3
• Ports 7, 8
• XT2
Per applicable pin
Per applicable pin
Per applicable pin
15
20
7.5
IOML(4)
Ports A, B, C, D
Per applicable pin
7.5
Note 1-1: Average output current refers to the average of output currents measured for a period of 100ms.
Continued on next page.
No.A0858-11/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Continued from preceding page.
Parameter
Total output
current
Symbol
ΣIOAL(1)
Pin/Remarks
Ports 0, 1, 31
Conditions
Total of currents at all
applicable pins
Specification
VDD[V] min typ max
45
ΣIOAL(2)
Port 30
Total of currents at all
applicable pins
45
ΣIOAL(3)
Ports 0, 1, 3
Total of currents at all
applicable pins
80
ΣIOAL(4)
• Ports 7, 8
• XT2
Total of currents at all
applicable pins
20
ΣIOAL(5)
Ports A, B
Total of currents at all
applicable pins
45
ΣIOAL(6)
Ports C, D
Total of currents at all
applicable pins
45
ΣIOAL(7)
Ports A, B, C, D
Total of currents at all
applicable pins
80
Maximum power
dissipation
Pd max
QFP80(14×14)
TQFP80J(12×12)
Ta=-20 to+70°C
290
Operating ambient
temperature
Topr
-20 +85
Storage ambient
temperature
Tstg
-55 +125
Note 1-1: Average output current refers to the average of output currents measured for a period of 100 ms.
unit
mA
mW
°C
Allowable Operating Range at Ta = -20°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Operating
supply voltage
(Note 2-1)
Symbol
VDD(1)
VDD(2)
VDD(3)
Pin/Remarks
Conditions
VDD1=VDD2=VDD3
0-237μstCYC200μs
0-356μstCYC200μs
0-712μstCYC200μs
VDD[V]
min
3.0
2.5
2.2
Specification
typ max
5.5
5.5
5.5
unit
Memory
sustaining
VHD
VDD1
RAM and register contents
sustained in HOLD mode
2.0 5.5
supply voltage
High level input
voltage
VIH(1)
• Ports 0, 3, 8
• Ports A, B, C, D
• Port L
Output disabled
2.2 to 5.5
0.3VDD
+0.7
VDD
VIH(2)
• Port 1
• Ports 71 to 73
• Port 70 port input/
• Output disabled
• When INT1VTSL=0
(P71only)
2.2 to 5.5
0.3VDD
+0.7
VDD
V
interrupt side
VIH(3)
Port 71 interrupt side
• Output disabled
• When INT1VTSL=1
2.2 to 5.5 0.85VDD
VDD
VIH(4)
Port 87 small signal
input side
Output disabled
2.2 to 5.5 0.75VDD
VDD
VIH(5)
Port 70 watchdog
timer side
Output disabled
2.2 to 5.5 0.9VDD
VDD
VIH(6)
XT1, XT2, CF1, RES
2.2 to 5.5 0.75VDD
VDD
Note 2-1: VDD must be held greater than or equal to 3.0V in the flash ROM onboard programming mode.
Continued on next page.
No.A0858-12/24
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8-bit 1-chip Microcontroller

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LC87F76C8A
Continued from preceding page.
Parameter
Low level input
voltage
Symbol
VIL(1)
VIL(2)
VIL(3)
Pin/Remarks
Conditions
• Ports 0, 3, 8
• Ports A, B, C, D
• Port L
• Port 1
• Ports 71 to 73
• Port 70 port input/
interrupt side
Port 71 interrupt side
Output disabled
• Output disabled
• When INT1VTSL=0
(P71 only)
• Output disabled
• When INT1VTSL=1
VDD[V]
4.0 to 5.5
2.2 to 4.0
4.0 to 5.5
2.2 to 4.0
2.2 to 5.5
min
VSS
VSS
VSS
VSS
VSS
Specification
typ max
0.15VDD
+0.4
0.2VDD
0.1VDD
+0.4
0.2VDD
0.45VDD
unit
V
VIL(4)
Port 87 small signal
input side
Output disabled
2.2 to 5.5
VSS
0.25VDD
VIL(5)
Port 70 watchdog
timer side
Output disabled
2.2 to 5.5
VSS
0.8VDD
-1.0
Instruction cycle
time
(Note 2-2)
VIL(6)
tCYC
XT1, XT2, CF1, RES
2.2 to 5.5
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
VSS
0.237
0.356
0.712
0.25VDD
200
200
200
μs
External system FEXCF(1)
clock frequency
CF1
• CF2 pin open
• System clock frequency
division ratio=1/1
• External system clock
DUTY50±5%
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
0.1
0.1
0.1
12
8
4
• CF2 pin open
• System clock frequency
division ratio=1/2
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
0.2
0.2
0.2
24.4
16
8
Oscillation
frequency range
(Note 2-3)
FmCF(1)
FmCF(2)
FmCF(3)
CF1, CF2
CF1, CF2
CF1, CF2
• 12MHz ceramic oscillation
• See figure 1.
• 8MHz ceramic oscillation
• See figure 1.
• 4MHz ceramic oscillation
• See figure 1.
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
12
8
MHz
4
FmRC
Internal RC oscillation
2.2 to 5.5
0.3 1.0
2.0
FmVMRC(1)
• Multifrequency RC source
oscillation
• VMRAJ2 to 0=4,
VMFAJ2 to 0=0,
2.2 to 5.5
10
When VMSL4M=0
FmVMRC(2)
• Multifrequency RC source
oscillation
• VMRAJ2 to 0=4,
VMFAJ2 to 0=0,
When VMSL4M=1
2.2 to 5.5
4
FsX’tal
XT1, XT2
• 32.768kHz crystal oscillation
• See figure 2.
2.2 to 5.5
32.768
kHz
Multifrequency
RC oscillation
usable range
OpVMRC(1)
OpVMRC(2)
When VMSL4M=0
When VMSL4M=1
2.2 to 5.5
2.2 to 5.5
8 10
3.5 4
12
MHz
4.5
Multifrequency VmADJ(1)
VMRAJn 1STEP (Wide range) 2.2 to 5.5
8 24
64
RC oscillation
adjustment
range
VmADJ(2)
VMFAJn 1STEP (Narrow
range)
2.2 to 5.5
14
%
8
Note 2-2: Relationship between tCYC and oscillation frequency is 3/FmCF at a division ratio of 1/1 and 6/FmCF at
a division ratio of 1/2.
Note 2-3: See Tables 1 and 2 for the oscillation constants.
No.A0858-13/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Electrical Characteristics at Ta = -20°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
High level input
current
Symbol
Pin/Remarks
IIH(1)
• Ports 0, 1, 3, 7, 8
• Ports A, B, C, D
• Port L
Conditions
• Output disabled
• Pull-up resistor off
• VIN=VDD (including output Tr's
off leakage current)
VDD[V]
2.2 to 5.5
min
Specification
typ max
unit
1
IIH(2)
RES
VIN=VDD
2.2 to 5.5
1
IIH(3)
IIH(4)
XT1, XT2
CF1
• When configured as input ports
• VIN=VDD
VIN=VDD
2.2 to 5.5
2.2 to 5.5
1
15
Low level input
current
IIH(5)
IIL(1)
Port 87 small signal
input side
• Ports 0, 1, 3, 7, 8
• Ports A, B, C, D
• Port L
VIN=VBIS+0.5V
(VBIS denotes bias voltage)
• Output disabled
• Pull-up resistor off
• VIN=VSS (including output Tr's
off leakage current)
4.5 to 5.5
2.2 to 4.5
2.2 to 5.5
4.2 8.5 15
1.5 5.5 10
μA
-1
IIL(2)
RES
VIN=VSS
2.2 to 5.5
-1
IIL(3)
XT1, XT2
• When configured as input ports
• VIN=VSS
2.2 to 5.5
-1
IIL(4)
CF1
VIN=VSS
2.2 to 5.5
-15
IIL(5)
Port 87 small signal
input side
VIN=VBIS-0.5V
(VBIS denotes bias voltage)
4.5 to 5.5
2.2 to 4.5
-15 -8.5 -4.2
-10 -5.5 -1.5
High level output
voltage
Low level output
voltage
VOH(1)
VOH(2)
VOH(3)
VOH(4)
VOH(5)
VOH(6)
VOH(7)
VOH(8)
VOH(9)
VOH(10)
VOH(11)
VOL(1)
VOL(2)
VOL(3)
VOL(4)
VOL(5)
VOL(6)
CMOS output ports
0, 1
CMOS output ports
30, 31
Ports 71 to 73
Ports A, B, C, D
Ports 0, 1
• Port 3 (PWM4, 5
function output
mode)
Port 3
(Port function output
mode)
IOH=-1mA
IOH=-0.4mA
IOH=-0.2mA
IOH=-10mA
IOH=-1.6mA
IOH=-1mA
IOH=-0.4mA
IOH=-0.2mA
IOH=-1mA
IOH=-0.4mA
IOH=-0.2mA
IOL=10mA
IOL=1.6mA
IOL=1mA
IOL=30mA
IOL=5mA
IOL=2.5mA
4.5 to 5.5
3.0 to 5.5
2.2 to 5.5
4.5 to 5.5
3.0 to 5.5
2.2 to 5-5
3.0 to 5.5
2.2 to 5.5
4.5 to 5.5
3.0 to 5.5
2.2 to 5.5
4.5 to 5.5
3.0 to 5.5
2.2 to 5.5
4.5 to 5.5
3.0 to 5.5
2.2 to 5.5
VDD-1
VDD-0.4
VDD-0.4
VDD-1.5
VDD-0.4
VDD-0.4
VDD-0.4
VDD-0.4
VDD-1
VDD-0.4
VDD-0.4
1.5
0.4
0.4 V
1.5
0.4
0.4
VOL(7)
VOL(8)
• Ports 7, 8
• XT2
IOL=1.6mA
IOL=1mA
3.0 to 5.5
2.2 to 5.5
0.4
0.4
VOL(9)
Ports A, B, C, D
IOH=1.6mA
3.0 to 5.5
0.4
VOL(10)
IOL=1mA
2.2 to 5.5
0.4
LCD output
voltage deviation
VODLS
S0 to S31
• IO=0mA
• VLCD, 2/3VLCD
1/3VLCD level output
2.2 to 5.5
0
±0.2
• See Fig. 8.
VODLC COM0 to COM3
• IO=0mA
• VLCD, 2/3VLCD
1/2VLCD, 1/3VLCD level output
2.2 to 5.5
0
±0.2
• See Fig. 8.
LCD bias resistor
RLCD(1)
Resistance per
one bias resister
See Fig. 8.
2.2 to 5.5
60
RLCD(2)
• Resistance per
one bias resister
• 1/2 resistance
See Fig. 8.
2.2 to 5.5
kΩ
30
mode
Continued on next page.
No.A0858-14/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Continued from preceding page.
Parameter
Symbol
Pin/Remarks
Conditions
Pull-up MOS Tr.
resistance
Hysteresis voltage
Pin capacitance
Input sensitivity
Rpu(1)
Rpu(2)
VHYS(1)
VHYS(2)
CP
Vsen
• Ports 0, 1, 3, 7
• Ports A, B, C, D
• Ports 1, 7
• RES
Port 87 small signal
input side
All pins
Port 87 small signal
input side
VOH=0-9VDD
• VIN=VSS for pins other than
that under test
• f=1MHz
• Ta=25°C
VDD[V]
4.5 to 5.5
2.2 to 4.5
2.2 to 5.5
2.2 to 5.5
min
15
18
Specification
typ max
35 80
50 150
0.1VDD
0.1VDD
unit
kΩ
V
2.2 to 5.5
10 pF
2.2 to 5.5 0.12VDD
Vp-p
Serial I/O Characteristics at Ta = -20°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
1. SIO0 Serial I/O Characteristics (Note 4-1-1)
Parameter
Frequency
Symbol
tSCK(1)
Pin/Remarks
Conditions
SCK0(P12)
See Fig. 6.
VDD[V]
min
2
Specification
typ max
Low level
pulse width
High level
pulse width
Frequency
Low level
pulse width
High level
pulse width
Data setup time
Data hold time
tSCKL(1)
tSCKH(1)
tSCKHA(1)
tSCK(2)
SCK0(P12)
tSCKL(2)
tSCKH(2)
tSCKHA(2)
tsDI(1)
thDI(1)
SB0(P11),
SI0(P11)
1
• Continuous data
transmission/reception mode
• See Fig. 6.
• (Note 4-1-2)
• CMOS output selected
• See Fig. 6.
2.2 to 5.5
1
4
4/3
1/2
• Continuous data
transmission/reception mode
• CMOS output selected
• See Fig. 6.
• Must be specified with
respect to rising edge of
SIOCLK
• See Fig. 6.
2.2 to 5.5
2.2 to 5.5
tSCKH(2)
+2tCYC
0.03
0.03
1/2
tSCKH(2)
+(10/3)
tCYC
unit
tCYC
tSCK
tCYC
Output delay
time
tdDO(1)
tdDO(2)
tdDO(3)
SO0(P10),
SB0(P11)
• Continuous data
transmission/reception mode
• (Note 4-1-3)
• Synchronous 8-bit mode
• (Note 4-1-3)
(Note 4-1-3)
2.2 to 5.5
(1/3)tCYC
+0.05
1tCYC
+0.05
μs
(1/3)tCYC
+0.05
Note 4-1-1: These specifications are theoretical values. Add margin depending on its use.
Note 4-1-2: To use serial-clock-input in continuous transmission/reception mode, a time from SI0RUN being set when
serial clock is "H" to the first falling edge of the serial clock must be longer than tSCKHA.
Note 4-1-3: Must be specified with respect to falling edge of SIOCLK. Must be specified as the time to the beginning
of output state change in open drain output mode. See Fig. 6.
No.A0858-15/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
2. SIO1 Serial I/O Characteristics (Note 4-2-1)
Parameter
Frequency
Symbol
tSCK(3)
Pin/Remarks
Conditions
SCK1(P15)
See Fig.6.
Low level
pulse width
High level
pulse width
Frequency
tSCKL(3)
tSCKH(3)
tSCK(4)
Low level
pulse width
High level
pulse width
Data setup time
tSCKL(4)
tSCKH(4)
tsDI(2)
Data hold time
thDI(2)
SCK1(P15)
• CMOS output selected
• See Fig. 6.
SB1(P14),
SI1(P14)
• Must be specified with respect
to rising edge of SIOCLK.
• See Fig. 6.
VDD[V]
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
min
2
Specification
typ max
1
1
2
1/2
1/2
unit
tCYC
tSCK
0.03
0.03
Output delay
tdDO(4)
SO1(P13),
• Must be specified with respect
time
SB1(P14)
to falling edge of SIOCLK.
• Must be specified as the time to
the beginning of output state
2.2 to 5.5
change in open drain output
mode.
• See Fig. 6.
Note 4-2-1: These specifications are theoretical values. Add margin depending on its use.
μs
(1/3)tCYC
+0.05
Pulse Input Conditions at Ta = -20°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
High/low level
Symbol
Pin/Remarks
tPIH(1)
INT0(P70),
Conditions
• Interrupt source flag can be set.
Specification
VDD[V] min typ max
unit
pulse width
tPIL(1)
INT1(P71),
• Event inputs for timer 0 are
2.2 to 5.5
1
INT2(P72)
enabled.
tPIH(2)
INT3(P73) when
• Interrupt source flag can be set.
tPIL(2)
noise filter time
• Event inputs for timer 0 are
2.2 to 5.5
2
constant is 1/1
enabled.
tPIH(3)
tPIL(3)
INT3(P73) when
noise filter time
• Interrupt source flag can be set.
• Event inputs for timer 0 are
2.2 to 5.5
64
tCYC
constant is 1/32
enabled.
tPIH(4)
INT3(P73) when
• Interrupt source flag can be set.
tPIL(4)
noise filter time
• Event inputs for timer 0 are
2.2 to 5.5
256
constant is 1/128
enabled.
tPIH(5)
tPIL(5)
MICIN(P87)
The pulses can be counted by the
small signal sensor/counter.
2.2 to 5.5
1
tPIH(6)
tPIL(6)
RMIN(P73)
The pulses can be recognized as
signals by the infrared remote
control receiver circuit.
2.2 to 5.5
3
RMCK
(Note5-1)
tPIL(7)
RES
Resetting is enabled.
2.2 to 5.5 2000
μs
Note 5-1: RMCK denotes the frequency of the base clock (1tCYC to 128tCYC/subclock source oscillation frequency) for the
infrared remote control receiver circuit
No.A0858-16/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
AD Converter Characteristics at VSS1 = VSS2 = 0V
<12bits AD Converter Mode at Ta =-30 to +70°C>
Parameter
Resolution
Absolute
accuracy
Conversion
time
Analog input
voltage range
Analog port
input current
Symbol
N
ET
tCAD
VAIN
IAINH
IAINL
Pin/Remarks
AN0(P80)
to AN7(P87),
AN8(P70),
AN9(P71),
AN10(XT1),
AN11(XT2)
Conditions
(Note 6-1)
See conversion time calculation
formulas.
(Note 6-2)
VDD[V]
3.0 to 5.5
3.0 to 5.5
4.0 to 5.5
3.0 to 5.5
VAIN=VDD
VAIN=VSS
5
min
32
40
Specification
typ max
12
unit
bit
±16 LSB
100
μs
100
VSS
-1
VDD
1
V
μA
<8bits AD Converter Mode at Ta =-30 to +70°C>
Parameter
Symbol
Pin/Remarks
Conditions
Resolution
N
AN0(P80)
Absolute
accuracy
Conversion
time
ET
tCAD
to AN7(P87),
AN8(P70),
AN9(P71),
AN10(XT1)
AN11(XT2)
(Note 6-1)
See "Conversion time calculation
method."
(Note 6-2)
See "Conversion time calculation
method."
(Note 6-2)
Ta=-10 to 50°C
Analog input
VAIN
voltage range
Analog port
input current
IAINH
IAINL
VAIN=VDD
VAIN=VSS
<Conversion time calculation method>
VDD[V]
3.0 to 5.5
3.0 to 5.5
4.0 to 5.5
3.0 to 5.5
min
20
40
3.0 to 5.5
VSS
3.0 to 5.5
3.0 to 5.5
3.0 to 5.5
-1
-1
12bits AD Converter Mode: tCAD (conversion time) = ((52/(division ratio)) + 2) × (1/3)×tCYC
8bits AD Converter Mode: tCAD (conversion time) = ((32/(division ratio)) + 2) × (1/3)×tCYC
Specification
typ max
8
1.5
90
90
VDD
1
unit
bit
LSB
μs
V
μA
<Recommended Operating Conditions>
External
oscillator
FmCF[MHz]
Supply Voltage
Range
VDD[V]
System Clock
Division
(SYSDIV)
Cycle Time
tCYC [ns]
AD Frequency
Division Ratio
(ADDIV)
Conversion Time (tCAD)[μs]
12-bit AD
8-bit AD
4.0 to 5.5
12
3.0 to 5.5
1/1
1/1
250 1/8 34.8 21.5
250
1/16
69.5
42.8
Note 6-1: The quantization error (±1/2LSB) is excluded from the absolute accuracy value. The absolute accuracy refers
to the accuracy that is measured while there is no change in the I/O state of the pins adjacent to the analog
input channel.
Note 6-2: The conversion time refers to the interval from the time the instruction for starting the converter is issued till
the time the complete digital- conversion-value corresponding to the analog input value is loaded in the
required register.
No.A0858-17/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Consumption Current Characteristics at Ta = -20°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Normal mode
consumption
current
(Note 7-1)
IDDOP(1)
IDDOP(2)
Pin/Rema
rks
VDD1
=VDD2
=VDD3
Conditions
• FmCF=12MHz ceramic oscillation mode
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 12MHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/1 frequency division ratio
VDD[V]
4.5 to 5.5
3.0 to 3.6
min
Specification
typ max
unit
8.2 18.0
4.8 10.6
IDDOP(3)
IDDOP(4)
IDDOP(5)
• FmCF=8MHz ceramic oscillation mode
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 8MHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/1 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.5 to 3.0
6.4 13.9
3.8 8.8
3.0 6.7
IDDOP(6)
IDDOP(7)
IDDOP(8)
• FmCF=4MHz ceramic oscillation mode
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 4MHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
3.9 8.5
2.5 5.2
2.1 4.3 mA
IDDOP(9)
IDDOP(10)
IDDOP(11)
IDDOP(12)
IDDOP(13)
IDDOP(14)
IDDOP(15)
IDDOP(16)
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to internal RC oscillation
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• Internal RC oscillation stopped
• System clock set to 10MHz multifrequency
RC oscillation
• 1/1 frequency division ratio
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• Internal RC oscillation stopped
• System clock set to 4MHz multifrequency
RC oscillation
• 1/1 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
4.5 to 5.5
3.0 to 3.6
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
0.7 1.6
0.4 0.9
0.3 0.7
7.6 16.7
4.3 9.5
4.1 8.9
2.3 5.0
2.0 4.1
IDDOP(17)
IDDOP(18)
IDDOP(19)
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 32.768kHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
41.8 171.4
17.7
84.3 μA
13 67.2
Note 7-1: The consumption current value includes none of the currents that flow into the output Tr and internal pull-up
resistors.
Continued on next page.
No.A0858-18/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Continued from preceding page.
Parameter
HALT mode
consumption
current
(Note 7-1)
Symbol
IDDHALT(1)
IDDHALT(2)
Pin/
Remarks
VDD1
=VDD2
=VDD3
Conditions
HALT mode
• FmCF=12MHz ceramic oscillation
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 12MHz side.
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/1 frequency division ratio
VDD[V]
4.5 to 5.5
3.0 to 3.6
min
Specification
typ max
unit
3.7 8.2
1.9 4.3
IDDHALT(3)
IDDHALT(4)
IDDHALT(5)
HALT mode
• FmCF=8MHz ceramic oscillation mode
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 8MHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/1 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.5 to 3.0
6.4 13.9
3.8 8.8
3.0 6.7
IDDHALT(6)
HALT mode
• FmCF=4MHz ceramic oscillation mode
4.5 to 5.5
3.9 8.5
IDDHALT(7)
IDDHALT(8)
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 4MHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
3.0 to 3.6
2.2 to 3.0
2.5 5.2
2.1 4.3
mA
IDDHALT(9)
IDDHALT(10)
IDDHALT(11)
HALT mode
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to internal RC oscillation
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
0.4
0.18
0.13
0.9
0.4
0.3
IDDHALT(12)
HALT mode
IDDHALT(13)
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• Internal RC oscillation stopped
• System clock set to 10MHz multifrequency
RC oscillation
• 1/1 frequency division ratio
4.5 to 5.5
3.0 to 3.6
3.4 7.3
1.7 3.7
IDDHALT(14)
HALT mode
• FmCF=0Hz (oscillation stopped)
4.5 to 5.5
1.7 3.9
IDDHALT(15)
• FmX’tal=32.768kHz crystal oscillation mode
• Internal RC oscillation stopped
• System clock set to 4MHz multifrequency RC
3.0 to 3.6
0.8 1.8
IDDHALT(16)
oscillation
• 1/1 frequency division ratio
2.2 to 3.0
0.6 1.4
IDDHALT(17)
IDDHALT(18)
IDDHALT(19)
HOLD mode
consumption
current
IDDHOLD(1)
IDDHOLD(2)
IDDHOLD(3)
VDD1
HALT mode
• FmCF=0Hz (oscillation stopped)
• FmX’tal=32.768kHz crystal oscillation mode
• System clock set to 32.768kHz side
• Internal RC oscillation stopped
• Multifrequency RC oscillation stopped
• 1/2 frequency division ratio
HOLD mode
• CF1=VDD or open
(external clock mode)
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
25.7 141.9
8.3 66.6
5.2 52.3
0.14
28.0
μA
0.03 19.0
0.03 16.0
Clock
HOLD mode
consumption
current
IDDHOLD(4)
IDDHOLD(5)
IDDHOLD(6)
VDD1
Clock HOLD mode
• CF1=VDD or open
(external clock mode)
• FmX’tal=32.768kHz crystal oscillation mode
4.5 to 5.5
3.0 to 3.6
2.2 to 3.0
21.9
6.3
3.6
80
37
30
Note 7-1: The consumption current value includes none of the currents that flow into the output Tr and internal pull-up
resistors.
No.A0858-19/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
F-ROM Programming Characteristics at Ta = +10°C to +55°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Onboard
programming
Symbol
Pin/Remarks
IDDFW(1) VDD1
Conditions
• 128-byte programming
• Erasing current included
VDD[V]
3.0 to 5.5
min
Specification
typ max
unit
mA
current
Programming tFW(1)
• 128-byte programming
time • Erasing current included
3.0 to 5.5
ms
• Time for setting up 128-byte data is
excluded.
UART (Full Duplex) Operating Conditions at Ta = -20 to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Transfer rate
Symbol
UBR
Pin/Remarks
UTX(P00),
URX(P01)
Conditions
VDD[V]
2.2 to 5.5
min
16/3
Specification
typ max
unit
8192/3 tCYC
Data length: 7/8/9 bits (LSB first)
Stop bits: 1 bit (2-bit in continuous data transmission mode)
Parity bits: None
Example of 8-bit Data Transmission Mode Processing (Transmit Data=55H)
Start of
transmission
Start bit
Transmit data (LSB first)
Stop bit
End of
transmission
UBR
Example of 8-bit Data Reception Mode Processing (Receive Data=55H)
Start bit
Start of
reception
Receive data (LSB first)
Stop bit
End of
reception
UBR
*When using UART, set P0LDDR (PODDR: Bit0) to “0”
No.A0858-20/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Characteristics of a Sample Main System Clock Oscillation Circuit
Given below are the characteristics of a sample main system clock oscillation circuit that are measured using a
SANYO-designated oscillation characteristics evaluation board and external components with circuit constant values
with which the oscillator vendor confirmed normal and stable oscillation.
Table 1 Characteristics of a Sample Main System Clock Oscillator Circuit with a Ceramic Oscillator
Nominal
Frequency
Vendor
Name
Oscillator Name
12MHz
MURATA CSTCE12M0G52-R0
Circuit Constant
C1 C2 Rf1 Rd1
[pF] [pF]
[Ω]
[Ω]
(10) (10) Open 2.2k
Operating
Voltage
Range
[V]
2.8 to 5.5
Oscillation
Stabilization Time
typ max
[ms] [ms]
Remarks
Built-in
C1, C2
8MHz
MURATA
CSTCE8M00G52-R0
CSTLS8M00G52-R0
(10) (10) Open 1.0k
(15) (15) Open 1.0k
2.5 to 5.5
Built-in
C1, C2
4MHz
MURATA
CSTCR4M00F53-R0
CSTLS4M0053-B0
(15) (15) Open 2.2k
(15) (15) Open 2.2k
2.1 to 5.5
Built-in
C1, C2
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized after VDD
goes above the operating voltage lower limit (see Figure 4).
Characteristics of a Sample Subsystem Clock Oscillator Circuit
Given below are the characteristics of a sample subsystem clock oscillation circuit that are measured using a SANYO-
designated oscillation characteristics evaluation board and external components with circuit constant values with which
the oscillator vendor confirmed normal and stable oscillation.
Table 2 Characteristics of a Sample Subsystem Clock Oscillator Circuit with a Crystal Oscillator
Nominal
Frequency
Vendor Name
Oscillator
Name
Circuit Constant
Operating
Voltage Range
C3 C4 Rf2 Rd2
[V]
[pF] [pF]
[Ω]
[Ω]
Oscillation
Stabilization Time
typ max
[s] [s]
Remarks
32.768kHz
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized after the
instruction for starting the subclock oscillation circuit is executed and to the time interval that is required for the
oscillation to get stabilized after the HOLD mode is reset (see Figure 4).
Caution: The components that are involved in oscillation should be placed as close to the IC and to one another as
possible because they are vulnerable to the influences of the circuit pattern.
CF1 CF2
Rf1 Rd1
C1
CF
C2
Figure 1 CF Oscillator Circuit
XT1 XT2
Rf2 Rd2
C3 C4
X’tal
Figure 2 XT Oscillator Circuit
0.5VDD
Figure 3 AC Timing Measurement Point
No.A0858-21/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
Power supply
RES
Internal RC
oscillation
CF1, CF2
XT1, XT2
Reset time
tmsCF
tmsX’tal
VDD
Operating VDD
lower limit
0V
Operating mode
Unpredictable
Reset
Instruction execution
Reset Time and Oscillation Stabilization Time
HOLD reset signal
HOLD reset signal
absent
Internal RC
oscillation
CF1, CF2
XT1, XT2
HOLD release signal VALID
tmsCF
tmsX’tal
State
HOLD
HALT
HOLD Reset Signal and Oscillation Stabilization Time
Figure 4 Oscillation Stabilization Times
No.A0858-22/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
VDD
RRES
Note:
Determine the value of CRES and RRES so that the reset
signal is present for a period of 200μs after the supply
RES
voltage goes beyond the lower limit of the IC's operating
CRES
voltage.
Figure 5 Reset Circuit
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
SIOCLK:
DATAIN:
DATAOUT:
DI0 DI1 DI2 DI3 DI4 DI5 DI6
DI7
DI8
DO0 DO1 DO2 DO3 DO4 DO5 DO6
tSCKL
tSCK
tSCKH
DO7
Data RAM
transfer period
(SIO0 only)
DO8
tsDI thDI
tdDO
tSCKL
tdDO
tsDI
Data RAM
transfer period
(SIO0 only)
tSCKHA
thDI
Figure 6 Serial I/O Waveforms
tPIL tPIH
Figure 7 Pulse Input Timing Signal Waveform
No.A0858-23/24
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LC87F76C8A (Sanyo Semicon Device)
8-bit 1-chip Microcontroller

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LC87F76C8A
VDD
SW : ON/OFF (programmable)
RLCD
RLCD
RLCD
RLCD
RLCD
RLCD
RLCD
RLCD
RLCD
RLCD
SW: ON when VLCD=VDD
VLCD
2/3VLCD
1/2VLCD
1/3VLCD
GND
Figure 8 LCD Bias Resistors
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,
without the prior written consent of SANYO Semiconductor Co.,Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellectual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of August, 2006. Specifications and information herein are subject
to change without notice.
PS No.A0858-24/24
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