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HM628128DI

1 M SRAM (128-kword × 8-bit)

Hitachi -> Renesas Electronics 

HM628128DI Series

1 M SRAM (128-kword × 8-bit)

ADE-203-999A (Z)

Preliminary

Rev. 0.1

Jul. 8, 1999

Description

The Hitachi HM628128DI Series is 1-Mbit static RAM organized 131,072-kword × 8-bit. HM628128DI

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

process technology. The HM628128DI Series offers low power standby power dissipation; therefore, it is

suitable for battery backup systems. It has package variations of standard 32-pin plastic DIP, standard 32-pin

plastic SOP.

Features

• Single 5 V supply: 5 V ± 10%

• Access time: 70 ns (max)

• Power dissipation

 Active: 30 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

• Battery backup operation

 2 chip selection for battery backup

• Temperature range: –40 to +85°C

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

nearest Hitachi’s Sales Dept. regarding specification.

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