Preliminary: The specification of this device are subject to change without notice. Please contact your

nearest Hitachi’s Sales Dept. regarding specification.

HM628512CI Series

Wide Temperature Range Version

4 M SRAM (512-kword

× 8-bit)

ADE-203-1211 (Z)

Preliminary

Rev. 0.0

Aug. 30, 2000

Description

The Hitachi HM628512CI is a 4-Mbit static RAM organized 512-kword

× 8-bit. HM628512CI Series has

realized higher density, higher performance and low power consumption by employing Hi-CMOS process

technology. The HM628512CI Series offers low power standby power dissipation; therefore, it is suitable for

battery backup systems. It has packaged in 32-pin SOP, 32-pin TSOP II and 32-pin DIP.

Features

• Single 5 V supply

• Access time: 70 ns (max)

• Power dissipation

 Active: 50 mW/MHz (typ)

 Standby: 10 µW (typ)

• Completely static memory. No clock or timing strobe required

• Equal access and cycle times

• Common data input and output: Three state output

• Directly TTL compatible: All inputs and outputs

• Battery backup operation

• Operating temperature: –40 to +85˚C