HM658128A - 131072-word x 8-bit High Speed CMOS Pseudo Static RAM

Hitachi

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Datasheet Details

Part number	HM658128A
Manufacturer	Hitachi
File Size	146.90 KB
Description	131072-word x 8-bit High Speed CMOS Pseudo Static RAM
Datasheet	HM658128A_Hitachi.pdf

HM658128A Product details

Description

Symbol A0 to A16 I/O0 to I/O7 RFSH CE OE WE CS VCC VSS Pin name Address inputs Data input/output Refresh Chip enable Output enable Write enable Chip select Power supply Ground 3 HM658128A Series Block Diagram A0 Address latch control Row decoder Memory matrix (512 × 256) × 8 A8 I/O 0 www.DataSheet4U.com I/O 7 Input data control Column I/O Column decoder Address latch control A9 A16 RFSH Refresh control CE CS OE WE Timing pulse generator Read/write control Truth Table CE L L L L H

Features

Single 5 V (± 10%).
High speed.
Access time CE Access time: 80/100/120 ns.
Cycle time Random read/ Write cycle time: 130/160/190 ns.
Low power:.
Active: 300 mW (typ).
Standby: 350 µW (typ) (LL-version) 500 µW (typ) (L-version).
All inputs and outputs TTL compatible.
Non multiplexed address.
512 refresh cycles (8 ms).
Refresh functions.
Address refresh.
Automatic refresh.

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Published: Oct 20, 2008 |