February 2007
®
AS6C62256
32K X 8 BIT LOW POWER CMOS SRAM
FEATURES
Access time : 55ns
Low power consumption:
Operation current :
15mA (TYP.), V
CC
= 3.0V
Standby current :
1µ A (TYP.), V
CC
= 3.0V
Wide range power supply : 2.7 ~ 5.5V
Fully Compatible with all Competitors 5V product
Fully Compatible with all Competitors 3.3V product
Fully static operation
Tri-state output
Data retention voltage : 2.0V (MIN.)
All products ROHS Compliant
Package : 28-pin 600 mil PDIP
28-pin 330 mil SOP
28-pin 8mm x 13.4mm sTSOP
GENERAL DESCRIPTION
The AS6C62256 is a 262,144-bit low power CMOS
static random access memory organized as 32,768
words by 8 bits. It is fabricated using very high
performance, high reliability CMOS technology. Its
standby current is stable within the range of
operating temperature.
The AS6C62256 is well designed for low power
application, and particularly well suited for battery
back-up nonvolatile memory application.
The AS6C62256 operates with wide range power
supply 2.7 ~ 5.5V
.
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Enable Input
Write Enable Input
Output Enable Input
Power Supply
Ground
A0 - A14
DQ0 – DQ7
CE#
WE#
OE#
V
CC
V
SS
Vcc
Vss
32Kx8
MEMORY ARRAY
A0-A14
DECODER
DQ0-DQ7
I/O DATA
CIRCUIT
COLUMN I/O
CE#
WE#
OE#
CONTROL
CIRCUIT
02/FEB/07, v1.0
Alliance Memory Inc.
Page 1 of 12
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
