Datasheet > HM5225645F-B60

HM5225645F-B60

更新时间： 2024-10-26 22:15:23

品牌	Logo	应用领域
日立 - HITACHI		动态存储器 PC
页数	文件大小	规格书
16页	80K
描述
256M LVTTL interface SDRAM 100 MHz 1-Mword x 64-bit x 4-bank/2-Mword x 32-bit x 4-bank PC/100 SDRAM

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HM5225645F-B60 数据手册

HM5225645F-B60

HM5225325F-B60

256M LVTTL interface SDRAM

100 MHz

1-Mword × 64-bit × 4-bank/2-Mword × 32-bit × 4-bank

PC/100 SDRAM

ADE-203-1014C (Z)

Rev. 1.0

Oct. 1, 1999

Description

The Hitachi HM5225645F is a 256-Mbit SDRAM organized as 1048576-word × 64-bit × 4-bank. The Hitachi

HM5225325F is a 256-Mbit SDRAM organized as 2097152-word × 32-bit × 4-bank. All inputs and outputs

are referred to the rising edge of the clock input. It is packaged in standard 108 bump BGA.

Features

•

Single chip wide bit solution (× 64/× 32)

3.3 V power supply

Clock frequency: 100 MHz (max)

LVTTL interface

Extremely small foot print: 1.27 mm pitch

Package: BGA (BP-108)

•

4 banks can operate simultaneously and independently

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

Programmable burst length: 4/8/full page

2 variations of burst sequence

Sequential (BL = 4/8/full page)

Interleave (BL = 4/8)

•

Programmable CAS latency: 2/3

Byte control by DQMB

12 3 4 5 6 7...16

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型号	品牌	获取价格	描述	数据表
HM5225645FBP-B60	RENESAS	获取价格	4MX64 SYNCHRONOUS DRAM, 6ns, PBGA108, 14 X 22 MM, 1.27 MM PITCH, BUMP, BGA-108
HM5225805ATT-10	HITACHI	获取价格	Synchronous DRAM, 32MX8, 8ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54
HM5225805B-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805B-A6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805B-B6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805BLTT-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805BLTT-A6	HITACHI	获取价格	Synchronous DRAM, 32MX8, 6ns, CMOS, PDSO54, 0.400 INCH, PLASTIC, TSOP2-54
HM5225805BLTT-A6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805BLTT-B6	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-
HM5225805BTT-75	ELPIDA	获取价格	256M LVTTL interface SDRAM 133 MHz/100 MHz 4-