Datasheet > HB56EW872ETK-5AR

HB56EW872ETK-5AR

更新时间： 2024-11-09 20:40:07

品牌	Logo	应用领域
日立 - HITACHI		动态存储器内存集成电路
页数	文件大小	规格书
31页	345K
描述
EDO DRAM Module, 8MX72, 50ns, CMOS, DUAL LEAD OUT, SOCKET TYPE, DIMM-168

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HB56EW872ETK-5AR 数据手册

HB56EW472ETC-A Series,

HB56EW872ETK-A Series

32/64MB Buffered EDO DRAM DIMM

4-Mword × 72-bit, 4k Refresh, 1 Bank Module

(4 pcs of 4M × 16 & 2 pcs of 4M × 4 components)

8-Mword × 72-bit, 4k Refresh, 2 Bank Module

(8 pcs of 4M × 16 & 4 pcs of 4M × 4 components)

ADE-203-844 (Z)

Preliminary, Rev. 0.0

Nov. 14, 1997

Description

The HB56EW472ETC-A, HB56EW872ETK-A belong to 8 Byte DIMM (Dual In-line Memory Module)

family, and have been developed as an optimized main memory solution for 4 and 8 Byte processor

applications. The HB56EW472ETC-A is a 4M × 72 dynamic RAM module, mounted 4 pieces of 64-Mbit

DRAM (HM5165165A) sealed in TSOP package and 2 pieces of 16-Mbit DRAM (HM51W16405) sealed

in TSOP package, 2 pieces of 16-bit BiCMOS line driver sealed in TSSOP package. The

HB56EW872ETK-A is a 8M × 72 dynamic RAM module, mounted 8 pieces of 64-Mbit DRAM

(HM5165165A) sealed in TSOP package and 4 pieces of 16-Mbit DRAM (HM51W16405) sealed in TSOP

package, 2 pieces of 16-bit BiCMOS line driver sealed in TSSOP package. They offer Extended Data Out

(EDO) Page Mode as a high speed access mode. An outline of the HB56EW472ETC-A,

HB56EW872ETK-A is 168-pin socket type package (dual lead out). Therefore, the HB56EW472ETC-A,

HB56EW872ETK-A make high density mounting possible without surface mount technology. They

provide common data inputs and outputs. Decoupling capacitors are mounted TSOP on its module board.

Features

•

168-pin socket type package (Dual lead out)

Lead pitch: 1.27 mm

Single 3.3 V supply: 3.3 V +0.3 V/–0.15 V (HB56EW472ETC-5AR, HB56EW872ETK-5AR)

3.3 V ± 0.3 V (HB56EW472ETC-6A/7A, HB56EW872ETK-6A/7A)

High speed

Access time: t_RAC= 50 ns/60 ns /70 ns (max)

Access time: t_CAC= 18 ns /20 ns /23 ns (max)

Low power dissipation

•

Active mode:

3.92 W/3.20 W/2.77 W (max) (HB56EW472ETC-A Series)

3.96 W/3.31 mW/2.88 mW (max) (HB56EW872ETK-A Series)

12 3 4 5 6 7...31

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