8K x 8 BIT HIGH SPEED CMOS SRAM - Alliance Semiconductor
Description
NOVEMBER 2009
AS7C164A
8K X 8 BIT HIGH SPEED CMOS SRAM
FEATURES
Fast access time : 12/15 ns Low power consumption: Operating current : 110/100/90/80mA (TYP.
) Standby current : 1mA (TYP.
) Single 5V power supply All inputs and outputs TTL compatible Fully static operation Tri-state output Data retention voltage : 2.
0V (MIN.
) Green package available Package : 28-pin 300 mil SOJ
GENERAL DESCRIPTION
The AS7C164A is a 65,536-bit high speed CMOS static random access memory organized as 8,192 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 AS7C164A is well designed for high speed system applications, and particularly well suited for battery back-up nonvolatile memory application.
The AS7C164A operates from a single power supply of 5V and all inputs and outputs are fully TTL compatible
PRODUCT FAMILY
Product Family AS7C164A Operating Temperature 0 ~ 70℃ Vcc Range 4.
5 ~ 5.
5V Speed 12/15ns Power Dissipation Standby(ISB1,TYP.
) Operating(Icc,TYP.
) 1mA 110/100/90/80mA
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL DESCRIPTION Address Inputs Data Inputs/Outputs Chip Enable Inputs Write Enable Input Output Enable Input Power Supply Ground No Connection
Vcc Vss
A0 - A12 DQ0 – DQ7
DECODER 8Kx8 MEMORY ARRAY
CE#, CE2 WE# OE# VCC VSS NC
A0-A12
DQ0-DQ7
I/O DATA CIRCUIT
COLUMN I/O
CE# CE2 WE# OE#
CONTROL CIRCUIT
NOVEMBER/2009 V1.
2
Alliance Memory Inc
Page 1 of 10
NOVEMBER 2009
AS7C164A
8K X 8 BIT HIGH SPEED CMOS SRAM
PIN CONFIGURATION
NC A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 Vss 1 2 3 4 5 28 27 26 25 24 Vcc WE# CE2 A8 A9 A11 OE# A10 CE# DQ7 DQ6 DQ5 DQ4 DQ3
AS7C164A
SOJ
6 7 8 9 10 11 12 13 14
23 22 21 20 19 18 17 16 15
ABSOLUTE MAXIMUN RATINGS*
PARAMETER Voltage on VCC relative to VSS Voltage on any other pin relative to VSS Operating Temperature Storage Temperature Power Dissipation DC Output Current SYMBOL VT1 VT2 TA TSTG PD IOUT RATI...
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