ACE93C46.56.66
Three-wire Serial EEPROM
Description
The ACE93C46/56/66 provides 1024/2048/4096 bits of serial electrically erasable programmable read only memory
(EEPROM) organized as 64/128/256 words of 16 bits each, when the ORG pin is connected to VCC and 128/256/512
words of 8 bits each when it is tied to ground. The ACE93C46/56/66 is available in space-saving 8-lead PDIP, 8-lead
TSSOP and 8-lead JEDEC SOIC packages. The ACE93C46/56/66 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=1.8V 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
Don’t Connect
VER 1.5
1
ACE93C46.56.66
Three-wire Serial EEPROM
Block Diagram
ACE93C46
Note: When the ORG pin is connected to VCC, the “x 16” organization 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 16” organization is selected.
VER 1.5
2
ACE93C46.56.66
Three-wire Serial EEPROM
ACE93C56/66
Note: When the ORG pin is connected to VCC, the “x 16” organization 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 16” organization is selected.
Absolute Maximum Ratings
DC Supply Voltage
Input / Output Voltage
Operating Ambient Temperature
Storage Temperature
-0.3 to 6.5V
GND -0.3 to Vcc 0.3V
-40 to 85℃
-65 to 150℃
*Notice: Stresses above those listed under “Absolute Maximum Ratings” may 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 1.5
3
ACE93C46.56.66
Three-wire Serial EEPROM
Ordering information
ACE93C46/56/66 XX
+
X
H
Halogen-free
U : Tube
T : Tape and Reel
Pb - free
DP : DIP-8
FM : SOP-8
TM : TSSOP-8
Pin Capacitance
Applicable over recommended operating range from T
A
=25℃, f=1.0MHz,VCC=+1.8V (unless otherwise noted)
Test Conditions
Output Capacitance (DO)
Input Capacitance (CS, SK, DI)
Symbol Max Unit Conditions
COUT
CIN
5
5
pF
pF
VOUT=0V
VIN=0V
DC Characteristics
Applicable over recommended operating range from: T
A
= -40℃ to +85℃, V
CC
= +1.8V to +5.5V, (unless otherwise noted).
Symbol
V
CC1
V
CC2
V
CC3
I
CC1
I
SB1
I
SB2
I
SB3
I
LI(1)
I
LI(2)
I
OL
V
IL1(3)
V
IH1(3)
V
IL2(3)
V
IH2(3)
Parameter
Supply Voltage
Supply Voltage
Supply Voltage
Test Condition
Min
1.8
2.7
4.5
Typ
Max
5.5
5.5
5.5
Units
V
V
V
mA
µA
µA
µA
µA
µA
µA
V
V
V
V
4
V
CC
= 5.0V,
Supply Current
Standby Current
Standby Current
Standby Current
Input Leakage
Input Leakage
Output Leakage
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Read at 1.0MHz
Write at 1.0MHz
V
CC
= 1.8V, CS=0V
V
CC
= 2.7V, CS=0V
V
CC
= 5.0V, CS=0V
V
IN
= 0 to V
CC
V
IN
= 0 to V
CC
V
IN
= 0 to V
CC
2.7V≦Vcc≦5.5V
2.7V≦Vcc≦5.5V
1.8V≦Vcc≦2.7V
1.8V≦Vcc≦2.7V
-0.3
2.0
-0.3
Vcc*0.7
0.1
2.0
0.1
0.2
0.9
2.0
3.0
1.0
1.0
1.0
1.0
3.0
1.0
0.8
Vcc+0.3
Vcc+0.3
Vcc+0.3
VER 1.5
ACE93C46.56.66
Three-wire Serial EEPROM
Symbol
V
OL1
V
OH1
V
OL2
V
OH2
Parameter
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
Test Condition
2.7V≦Vcc≦5.5V
IOL=2.1mA
IOH=-0.4mA
1.8V≦Vcc≦2.7V
IOL=0.15mA
IOH=-100uA
Vcc-0.2
0.2
V
2.4
0.4
V
Min
Typ
Max
Units
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: T
A
= -40℃ to +85℃, V
CC
= +1.8V to +5.5V, CL=1TTL Gate and 100pF
(unless otherwise noted).
Symbol
fsx
Parameter
SK Clock Frequency
Test Condition
4.5≦Vcc≦5.5v
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
4.5≦Vcc≦5.5v
Min
0
0
0
250
250
1000
250
250
1000
250
250
1000
50
50
200
100
100
400
0
100
100
400
Typ Max
2
1
0.25
Units
MHz
tskh
SK High Time
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
4.5≦Vcc≦5.5v
ns
tskl
SK Low Time
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
4.5≦Vcc≦5.5v
ns
tcs
Minimum CS Low Time
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
4.5≦Vcc≦5.5v
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
4.5≦Vcc≦5.5v
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
Relative to SK
Relative to
SK
4.5≦Vcc≦5.5v
2.7≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
ns
tcss
CS Setup Time
Relative to
SK
Relative to
SK
ns
tdis
tcsh
tdih
DI Setup Time
CS Hold Time
DI Hold Time
ns
ns
ns
VER 1.5
5
京公网安备 11010802033920号
EEWORLD
