參數(shù)資料
型號(hào): HM5425401B
廠商: Hitachi,Ltd.
英文描述: 256M SSTL_2 interface DDR SDRAM(256M SSTL_2接口 DDR 同步DRAM)
中文描述: 256M DDR SDRAM的接口SSTL_2(256M SSTL_2接口的DDR同步DRAM)的
文件頁數(shù): 17/62頁
文件大?。?/td> 1016K
代理商: HM5425401B
HM5425161B, HM5425801B, HM5425401B Series
17
Function Truth Table (3)
Current state
Read with auto-
pre-charge*
8
CS
RAS CAS WE
Address
Command
Operation
Next state
H
×
×
×
×
DESL
NOP
Precharging
L
H
H
H
×
×
NOP
NOP
Precharging
L
H
H
L
BST
ILLEGAL
L
H
L
H
BA, CA, A10
READ/READA
ILLEGAL
L
H
L
L
BA, CA, A10
WRIT/WRITA
ILLEGAL
L
L
H
H
BA, RA
ACTV
ILLEGAL*
12
L
L
H
L
BA, A10
PRE, PALL
ILLEGAL*
12
L
L
L
×
×
×
×
ILLEGAL
Write*
9
H
×
×
DESL
NOP
Write
recovering
L
H
H
H
×
NOP
NOP
Write
recovering
L
L
H
H
H
L
L
H
×
BA, CA, A10
BST
READ/READA
ILLEGAL
Interrupting burst
write operation to
start read operation.
Interrupting burst
write operation to
start new write
operation.
ILLEGAL*
12
Read/ReadA
L
H
L
L
BA, CA, A10
WRIT/WRITA
Write/WriteA
L
L
H
H
BA, RA
ACTV
L
L
H
L
BA, A10
PRE, PALL
Interrupting write
operation to start
pre-charge.
Idle
L
L
L
×
×
×
×
ILLEGAL
Write
recovering*
10
H
×
×
DESL
NOP
Active
L
H
H
H
×
×
NOP
NOP
Active
L
H
H
L
BST
ILLEGAL
L
H
L
H
BA, CA, A10
READ/READA
Starting read
operation.
Starting new write
operation.
ILLEGAL*
12
Read/ReadA
L
H
L
L
BA, CA, A10
WRIT/WRITA
Write/WriteA
L
L
H
H
BA, RA
ACTV
L
L
H
L
BA, A10
PRE/PALL
ILLEGAL*
12
L
L
L
×
×
ILLEGAL
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PDF描述
HM5425801B 256M SSTL_2 interface DDR SDRAM(256M SSTL_2接口 DDR 同步DRAM)
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參數(shù)描述
HM5425401BTT-10 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425401BTT-75A 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425401BTT-75B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425801B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425801BTT-10 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank