HM658512A Series
4 M PSRAM (512-kword
×
8-bit)
2 k Refresh
ADE-203-218C(Z)
Rev. 3.0
Nov. 1997
Description
The Hitac hi HM658512A is a C MOS pseudo static R AM orga nized 512-kw ord
×
8-bit. It re alize s higher
density, higher per forma nce and low powe r consumption by employing 0. 8
µ
m Hi-C MOS proc ess
technology.
It offers low power data retention by self refresh mode. It also offers easy non multiplexed address interface
and ea sy re fre sh func tions. HM658512A is suita ble for handy systems which wor k with batter y bac k-up
systems.
The device is packaged in a small 525-mil SOP (460-mil body SOP) or a 8
×
20 mm TSOP with thickness of
1. 2 mm, or a 600-mil plastic DI P. High density custom ca rds made of Ta pe C arr ier P acka ges ar e also
available.
Features
•
Single 5 V (±10%)
•
High speed
Access time
CE
access time: 70/80/100 ns (max)
Cycle time
Random read/write cycle time:
115/130/160 ns (min)
•
Low power
Active: 250 mW (typ)
Standby: 200
µW
(typ)
•
Directly TTL compatible
All inputs and outputs
•
Simple address configuration
Non multiplexed address
•
Refresh cycle
2048 refresh cycles: 32 ms
HM658512A Series
•
Easy refresh functions
Address refresh
Automatic refresh
Self refresh
Ordering Information
Type No.
HM658512ALP-7
HM658512ALP-8
HM658512ALP-10
HM658512ALP-7V
HM658512ALP-8V
HM658512ALP-10V
HM658512ALFP-7
HM658512ALFP-8
HM658512ALFP-10
HM658512ALFP-7V
HM658512ALFP-8V
HM658512ALFP-10V
HM658512ALTT-7
HM658512ALTT-8
HM658512ALTT-10
HM658512ALTT-7V
HM658512ALTT-8V
HM658512ALTT-10V
HM658512ALRR-7
HM658512ALRR-8
HM658512ALRR-10
HM658512ALRR-7V
HM658512ALRR-8V
HM658512ALRR-10V
Access time
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
70 ns
80 ns
100 ns
400-mil 32-pin plastic TSOP (TTP-32DR)
400-mil 32-pin plastic TSOP (TTP-32D)
525-mil 32-pin plastic SOP (FP-32D)
Package
600-mil 32-pin plastic DIP (DP-32)
2
测试/测量
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