ACE93C46 Datasheet PDF - ACE Technology


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ACE93C46
ACE Technology

Part Number ACE93C46
Description Three-wire Serial EEPROM
Page 13 Pages

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ACE93C46
Three-wire Serial EEPROM
Description
The ACE93C46 provides 1024 bits of serial electrically erasable programmable read only memory (EEPROM)
organized as 64 words of 16 bits each, when the ORG pin is connected to VCC and 128 words of 8 bits each when it is
tied to ground. The ACE93C46 is available in space-saving 8-lead PDIP, 8-lead TSSOP and 8-lead JEDEC SOIC
packages. The ACE93C46 is enabled through the Chip Select pin (CS), and accessed via a 3-wire serial interface
consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a Read instruction at DI, the
address is decoded and the data is clocked out serially on the data output pin DO. The WRITE cycle is completely
self-timed and no separate erase cycle is required before write. The Write cycle is only enabled when it is in the
Erase/Write Enable state. When CS is brought “high” following the initiation of a write cycle, the DO pin outputs the
Ready/Busy status.
Features
Low-voltage operation 1.8 (VCC=1.8 to 5.5V)
Three-wire serial Interface
2MHz clock rate(5V) compatibility
Self-timed write cycle (5 ms max)
High-reliability Endurance: 1 Million write cycles
Data retention: 100 Years
Packaging Type
DIP-8
SOP-8
TSSOP-8
Pin Configurations
Pin Name
CS
SK
DI
DO
GND
Vcc
ORG
DC
Function
Chip select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Internal Organization
Dont Connect
VER 1.4 1



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Block Diagram
ACE93C46
Three-wire Serial EEPROM
Note: When the ORG pin is connected to VCC, the x 16organization is selected. When it is connected to ground, the x 8
organization is selected. If the ORG pin is left unconnected and the application does not load the input beyond the capability
of the internal 1 Meg ohm pullup, then the x 16organization is selected.
Absolute Maximum Ratings
DC Supply Voltage
-0.3 to 6.5V
Input / Output Voltage
GND -0.3 to Vcc 0.3V
Operating Ambient Temperature
-40 to 85
Storage Temperature
-65 to 150
*Notice: Stresses above those listed under Absolute Maximum Ratingsmay cause permanent damage to this device. These are
stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the
operational sections of this specification is not implied or intended. Exposure to the absolute maximum rating conditions for
extended periods may affect device reliability.
VER 1.4 2



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Ordering information
ACE93C46 XX + X H
Halogen-free
U : Tube
T : Tape and Reel
Pb - free
DP : DIP-8
FM : SOP-8
TM : TSSOP-8
ACE93C46
Three-wire Serial EEPROM
Pin Capacitance
Applicable over recommended operating range from TA=25, f=1.0MHz,VCC=+1.8V (unless otherwise noted)
Test Conditions
Symbol Max Unit Conditions
Output Capacitance (DO)
COUT 5 pF VOUT=0V
Input Capacitance (CS, SK, DI) CIN
5 pF VIN=0V
DC Characteristics
Applicable over recommended operating range from: TA = -40to +85, VCC = +1.8V to +5.5V, (unless otherwise noted).
Symbol
Parameter
Test Condition
Min Typ
Max
Units
VCC1
VCC2
VCC3
ICC1
Supply Voltage
Supply Voltage
Supply Voltage
Supply Current
VCC = 5.0V,
Read at 1.0MHz
Write at 1.0MHz
1.8
2.7
4.5
0.2
0.9
5.5
5.5
5.5
2.0
3.0
V
V
V
mA
ISB1
ISB2
ISB3
ILI(1)
ILI(2)
IOL
VIL1(3)
VIH1(3)
VIL2(3)
VIH2(3)
Standby Current
Standby Current
Standby Current
Input Leakage
Input Leakage
Output Leakage
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
VCC = 1.8V, CS=0V
VCC = 2.7V, CS=0V
VCC = 5.0V, CS=0V
VIN = 0 to VCC
VIN = 0 to VCC
VIN = 0 to VCC
2.7VVcc5.5V
2.7VVcc5.5V
1.8VVcc2.7V
1.8VVcc2.7V
-0.3
2.0
-0.3
Vcc*0.7
0.1
2.0
0.1
1.0
1.0
1.0
1.0
3.0
1.0
0.8
Vcc+0.3
Vcc+0.3
Vcc+0.3
µA
µA
µA
µA
µA
µA
V
V
V
V
VER 1.4 3



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ACE93C46
Three-wire Serial EEPROM
Symbol
VOL1
VOH1
Parameter
Output Low Voltage
Output High Voltage
Test Condition
2.7VVcc5.5V
IOL=2.1mA
IOH=-0.4mA
Min Typ
2.4
Max
0.4
Units
V
VOL2
VOH2
Output Low Voltage
Output High Voltage
1.8VVcc2.7V
IOL=0.15mA
IOH=-100uA
Vcc-0.2
0.2 V
Note: 1. DI.CS. SK input pin
2. ORG input pin
3. VIL min and VIH max are reference only and are not tested.
Applicable over recommended operating range from: TA = -40to +85, VCC = +1.8V to +5.5V, CL=1TTL Gate and 100pF
(unless otherwise noted).
Symbol
Parameter
Test Condition
Min Typ Max Units
fsx SK Clock Frequency
4.5Vcc5.5v
2.7Vcc5.5V
1.8VVcc5.5V
02
0 1 MHz
0 0.25
tskh SK High Time
4.5Vcc5.5v
2.7Vcc5.5V
1.8VVcc5.5V
250
250
1000
ns
tskl SK Low Time
4.5Vcc5.5v
2.7Vcc5.5V
1.8VVcc5.5V
250
250
1000
ns
tcs Minimum CS Low Time
4.5Vcc5.5v
2.7Vcc5.5V
1.8VVcc5.5V
250
250
1000
ns
4.5Vcc5.5v 50
tcss
CS Setup Time
Relative to 2.7Vcc5.5V 50
SK 1.8VVcc5.5V 200
ns
4.5Vcc5.5v 100
tdis
DI Setup Time
Relative to 2.7Vcc5.5V 100
SK
1.8VVcc5.5V 400
ns
tcsh CS Hold Time
Relative to SK
0
ns
4.5Vcc5.5v 100
tdih
DI Hold Time
Relative to 2.7Vcc5.5V 100
SK
1.8VVcc5.5V 400
ns
VER 1.4 4




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