SC9321 Datasheet PDF - Silan Microelectronics

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SC9321
Silan Microelectronics

Part Number SC9321
Description AUDIO SYSTEM CONTROL MCU
Page 16 Pages


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SC9321
AUDIO SYSTEM CONTROL MCU WITH DTS PLL
DESCRIPTION
SC9321 is an audio system controller which realizes the AM/FM tune
receiver (DTS) and other functions. It is based on Silan’s 8-bit MCU
SC65PX and can be operating under low voltage. Built-in LCD driver
which can drive max. 4X23 segments display; 44 configurable I/O
ports; three 8-bit counters, where two of them can be together to
implement 16-bit timing length, and another timer is equipped with
input capture functions; Built-in real time clock ensures the system
continuously counting when it is in sleep state; 9 interrupt sources
including four external interrupts, which makes the system response to
various internal or external events quickly. The serial communication
circuit with selectable multiple operating modes enhanced the
expansibility of the system. Built-in 3.2MHz RC oscillator with external
75KHz oscillator can make a balance between power dissipation and
speed. In high speed application, it can extend external high frequency
oscillator through PC.4/5 pin, maximum up to 8MHz.
The chip can be widely applicable in portable audio control system
with LCD display.
LQFP-64-10x10-0.5
APPLICATIONS
* Widely applied in portable audio
control system with LCD.
ORDERING INFORMATION
Device
SC9321
Package
LQFP-64-10x10-0.5
Seal
SC9321P
FEATURES
* Memory
384-byte data memory
8K-byte (OTP)+ 8K-byte(ROM)
* I/O configuration
General-purpose I/O: 21 pins with pull up resistor;
SEG: also can be used as I/O.
* LCD controller/driver
Drive 11 words display max.
23 SEG x 4 COM
Display mode: duty, bias can be programmable
* 8 –bit timer/counter T0/T1/T2
Timing time can be set by program
External events counting
Arbitrary clock frequency output
T0/T1 can be 16-bit counter
T2 provides input capture function
* Clock source
External clock source: 75KHz oscillator
Built-in RC oscillator: 3.2MHz
Extension oscillator: 2~8MHz(VDD>2.4V@4MHz)
* RTC
Year/month/day display
Provide BCD code data directly
Leap year auto adjust
Timing alarm
* PLL frequency synthesizer
FM/AM
FM frequency range: 30MHz~150MHz
AM frequency range: 0.5MHz~30MHz
* 16-bit IF counter
AMIF range: 100KHz~1MHz
FMIF range: 5MHz~15MHz
AMIF&FMIF share one IF input IFIN
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0 2008.02.21
Page 1 of 16
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SC9321
FEATURES (Continued)
* A/D converter
5-channel selection input, 8-bit conversion
precision
External reference voltage selectable
Battery electricity checking
* Built-in reference
The operating voltage is changed within the range
of 2.0~5.5V, VREF=1.23V±5%.
* UART serial communication interface
2-line async communication
Communication speed can be selected flexibly
Quick interrupt response
* Interrupt source
4 external interrupts, maskable
6 internal interrupts, maskable
* Operating voltage range:
75KHz 2.0~5.5V
3.2MHz 2.2~5.5V
BLOCK DIAGRAM
XOUT
XIN Oscillator
PA.0
Port A
PA.7
PB.0/KS0
Port B
PB.5
PC.0/ADC0
Port C
PC.6/VE
8 bit x 6
ADC
75KHz
Low voltage
detection
Watchdog
Timer
75KHz
RCOSC
3.2MHz
System
clock
control
RTC
Standard
1.23V
UART
External
interrupt
Interrupt
control
Internal
interupt
LCD Driver
COM0
COM3
MCU
ROM: 8Kx 8
OTP: 8Kx8
RAM
384
8-bit
Timer 2
8-bit
Timer 1
8-bit
Timer 0
PLL
16-bit IF
Counter
VO
AVSS
Note: VPP pin can be diplexed as RESET when program the OTP memory, this pin is connected to 12V
voltage.
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0 2008.02.21
Page 2 of 16



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SC9321
ABSOLUTE MAXIMUM RATINGS
Characteristics
Symbol
Operating Voltage
VDD
Input Voltage (All The I/O Pins) VIN1
Input Voltage (RESET)
VIN1
Output Voltage
VOUT
Output High Level Current
IOH
Output Low Level Current
IOL
Operating Ambient
Temperature
Tamb
Storage Temperature
TSTG
Ratings
-0.3~5.5
-0.3~VDD+0.3
-0.3~VDD+0.3
-0.3~VDD+0.3
-15
30
-20~+75
-40~+125
Unit
V
V
V
V
mA
mA
°C
°C
ELECTRICAL CHARACTERISTICS (Tamb=25 °C,VDD=3V)
Characteristics
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Input High Leakage Current
Input Low Leakage Current
Output High Leakage Current
75KHz Crystal Oscillator
Feedback Resistor
75KHz Crystal Oscillator Input
Current
75KHz Crystal Oscillator Input
Current
Pull-Down Resistor
Pull-Up Resistor
Symbol
Test conditions
VIH1 PA/B/C
VIH2 PE/F/G
VIL1 PA/B/C
VIL2 PE/F/G (Note1)
VOH1 VDD=3V,EO,IOH=-1mA
VOH2 VDD=3V,PA/B/C,IOH=-1mA
VOH3 VDD=3V,PE/F/G,IOH=-1mA
VOL1 VDD=3V,EO,I OH=0.5mA
VOL2 VDD=3V,PA/B/C,IOH=1mA
VOL3 VDD=3V,PE/F/G,IOH=1mA
ILIH VIN=VDD, all the input pins
ILIL VIN=0V,all the input pins
ILOL VOUT=VDD, all the input pins
Rosc VDD =3.0V,XIN=VDD, XOUT=0V
IHosc VDD =3.0V,XIN= XOUT=VDD
ILosc VDD =3.0V,XIN= XOUT=0
RL1 VDD=3.0V,VIN(FM/AM/IFIN)=VDD
RL2 VDD=3.0V,Test = VDD
RH1 VDD=3.0V,VIN=0,PA/B/C
RH2 VDD=3.0V,Vreset = 0
Min.
2.8
2.8
Typ.
1.73
1.53
-
-
2.0
Max.
1.57
1.4
0.9
0.2
0.2
1
1
1
Unit
V
V
V
V
μA
5000 6000 7000 KΩ
180 μA
120 μA
9 10.5 12
81 84 87
KΩ
27 58
KΩ
64 67 70
(To be continued)
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0 2008.02.21
Page 3 of 16



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SC9321
(Continued)
Characteristics
Operating Current
Operating Current
Symbol
Test conditions
Min.
IDD1 OSC 75KHz stop, CPU Clk stop
IDD2
IDD3
OSC=75KHz,CPU Clk=75KHz Sleep
(Note 2)
OSC=75KHz,CPU Clk=3.2MHz,
all the modules start
Typ.
4.8
Max.
1
8
3.0
Unit
μA
μA
mA
Note 1: CMOS input, when input voltage is 1.6V, the state of read port is uncertain.
Note 2: Only 75KHz crystal oscillator and RTC are working.
PIN CONFIGURATION
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0 2008.02.21
Page 4 of 16



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