DS38464
3.3V 64K x 40 NV SRAM SIMM
www.maxim-ic.com
FEATURES
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2Mbits organized as a 64K x 40 memory
6 years minimum data retention in the
absence of external power
Nonvolatile circuitry transparent to and
independent of host system
Automatic
write
protection
circuitry
safeguards against data loss
Battery monitor checks remaining capacity
daily
Fast access time of 70ns
Operating V
CC
range of 3.0V to 3.6V
Employs popular JEDEC standard 72-
position SIMM connector
Operating temperature: 0
o
C to +70
o
C
PIN ASSIGNMENT
PIN DESCRIPTION
A0 - A15
DQ0 鈥?DQ39
CEA\
WE\
OE\
VCC
GND
-
-
-
-
-
-
-
Address Inputs
Data Inputs/Outputs
Chip Enable Inputs
Write Enable Inputs
Output Enable Inputs
3.3V Power Supply
Ground
DS38464 72-PIN SIMM
1 of 10
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