Datasheet > HM5225405ATT-8

HM5225405ATT-8

更新时间： 2024-10-27 14:51:03

品牌	Logo	应用领域
日立 - HITACHI		时钟动态存储器光电二极管内存集成电路
页数	文件大小	规格书
61页	591K
描述
Synchronous DRAM, 64MX4, 6ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54

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HM5225405ATT-8 数据手册

HM5225165A-8/10

HM5225805A-8/10

HM5225405A-8/10

256M LVTTL interface SDRAM

125 MHz/100 MHz

4-Mword × 16-bit × 4-bank/8-Mword × 8-bit × 4-bank

/16-Mword × 4-bit × 4-bank

ADE-203-834B (Z)

Preliminary, Rev. 0.2

Sept. 20, 1998

Description

The Hitachi HM5225165A is a 256-Mbit SDRAM organized as 4194304-word × 16-bit × 4 bank. The

Hitachi HM5225805A is a 256-Mbit SDRAM organized as 8388608-word × 8-bit × 4 bank. The Hitachi

HM5225405A is a 256-Mbit SDRAM organized as 16777216-word × 4-bit × 4 bank. All inputs and

outputs are referred to the rising edge of the clock input. It is packaged in standard 54-pin plastic TSOP II.

Features

•

3.3 V power supply

Clock frequency: 125 MHz/100 MHz (max)

LVTTL interface

Single pulsed RAS

4 banks can operate simultaneously and independently

Burst read/write operation and burst read/single write operation capability

Programmable burst length: 1/2/4/8/full page

2 variations of burst sequence

Sequential (BL = 1/2/4/8/full page)

Interleave (BL = 1/2/4/8)

•

Programmable CAS latency: 2/3

12 3 4 5 6 7...61

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型号	品牌	获取价格	描述	数据表
HM5225405B-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405B-A6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405B-B6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405BLTT-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405BLTT-75	HITACHI	获取价格	Synchronous DRAM, 64MX4, 5.4ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54
HM5225405BLTT-A6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405BLTT-A6	HITACHI	获取价格	Synchronous DRAM, 64MX4, 6ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54
HM5225405BLTT-B6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225405BLTT-B6	HITACHI	获取价格	Synchronous DRAM, 64MX4, 6ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54
HM5225405BTT-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-