HM628128DI Datasheet, PDF (1/16 Pages) Hitachi Semiconductor – 1 M SRAM (128-kword X 8-bit)

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.