參數(shù)資料
型號(hào): MSM51V4256A-70
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 262,144-Word ⅴ 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
中文描述: 262,144字ⅴ4位動(dòng)態(tài)隨機(jī)存儲(chǔ)器:快速頁(yè)面模式型
文件頁(yè)數(shù): 11/17頁(yè)
文件大?。?/td> 253K
代理商: MSM51V4256A-70
11/17
Semiconductor
MSM51V4256A
Fast Page Mode Read Cycle
Fast Page Mode Write Cycle (Early Write)
"H" or "L"
RAS
CAS
V
IH
V
IL
V
IH
V
IL
DQ
V
IH
V
IL
Address
V
IL
WE
V
IH
V
IL
t
RASP
t
PC
t
RP
t
AR
t
CRP
t
RCD
t
CAS
t
CP
t
CAS
t
RSH
t
CRP
t
CAS
t
ASR
t
RAH
t
CAH
t
CSH
t
ASC
t
CAH
t
ASC
t
CAH
t
RAL
Row
Column
Column
Column
t
RAD
t
WCS
t
WCH
t
WP
t
WCS
t
WCH
t
WP
t
WCS
t
WCH
t
WP
t
DS
t
DH
t
DS
t
DH
t
DS
t
DH
Valid Data-in
Valid
Data-in
Valid
Data-in
t
DHR
Note:
OE
= "H" or "L"
V
IH
t
ASC
t
RHCP
t
CP
t
CWL
t
CWL
t
RWL
t
CWL
t
WCR
"H" or "L"
RAS
CAS
V
IH
V
IL
V
IH
V
IL
DQ
V
OH
V
OL
Address
V
IH
V
IL
WE
V
IH
V
IL
OE
V
IH
V
IL
t
RASP
t
RP
t
AR
t
CRP
t
RCD
t
PC
t
RSH
t
CRP
t
CAS
t
CAS
t
CP
t
CAS
t
RAD
t
ASR
t
RAH
t
ASC
t
CAH
t
CSH
t
ASC
t
CAH
t
ASC
t
CAH
t
RAL
Row
Column
Column
Column
t
RCS
t
RCH
t
RCS
t
RCS
t
RCH
t
AA
t
OEA
t
AA
t
AA
t
RRH
t
OEA
t
OEA
t
CAC
t
RAC
t
OFF
t
OEZ
t
CAC
t
CLZ
t
OFF
t
OEZ
Valid
Data-out
t
CAC
t
CLZ
t
OEZ
Valid
Data-out
t
OFF
t
CLZ
Valid
Data-out
t
RHCP
t
CP
t
RCH
t
CPA
t
CPA
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參數(shù)描述
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