參數(shù)資料
型號: HM5225325F-B60
廠商: Hitachi,Ltd.
英文描述: 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
中文描述: 256M LVTTL接口SDRAM的100兆赫1 - Mword × 64位× 4-bank/2-Mword × 32位× 4個銀行PC/100 SDRAM的
文件頁數(shù): 1/16頁
文件大?。?/td> 81K
代理商: HM5225325F-B60
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
相關(guān)PDF資料
PDF描述
HM5225645F-B60 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
HM5225325F 256-Mbit SDRAM(256M位同步RAM)
HM5225645F 256-Mbit SDRAM(256M位同步RAM)
HM5225405B 256M LVTTL interface SDRAM(256M LVTTL接口同步DRAM)
HM5225805B 256M LVTTL interface SDRAM(256M LVTTL接口同步DRAM)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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HM5225405B-A6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225405B-B6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
HM5225405BLTT-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM