參數(shù)資料
型號: μPD4265800
廠商: NEC Corp.
英文描述: 64 M-Bit Dynamic RAM(64M 動態(tài)RAM)
中文描述: 64 m位動態(tài)隨機(jī)存儲器(RAM的6400動態(tài))
文件頁數(shù): 20/28頁
文件大?。?/td> 263K
代理商: ΜPD4265800
μ
PD4264800, 4265800
20
Fast Page Mode Read Modify Write Cycle
Remark
In the fast page mode, read, write and read modify write cycles are available for each of the consecutive
CAS cycles within the same RAS cycle.
t
RCS
CAS
V
IH–
V
IL–
t
CPN
t
CP
t
CAS
t
CAS
t
CP
t
PRWC
t
CAS
t
RCD
RAS
V
IH–
V
IL–
t
RASP
t
RP
t
CRP
Address
V
IH–
V
IL–
t
ASR
t
RAH
t
RAD
t
ASC
t
CAH
t
ASC
t
CAH
t
CAH
t
ASC
Row
Col.
Col.
Col.
t
RAL
WE
V
IH–
V
IL–
t
RWD
t
AWD
t
CWD
t
OLZ
I/O
V
IH–
V
IL–
t
DH
t
DS
t
WP
t
RCS
t
CWL
t
ACP
t
CPWD
t
AWD
t
CWD
t
WP
t
CWL
t
ACP
t
CPWD
t
AWD
t
CWD
t
RCS
t
CWL
t
RWL
t
WP
OE
V
IH–
V
IL–
I/O
V
OH–
V
OL–
out
t
OEZ
t
CLZ
t
OED
t
OEA
t
CAC
t
AA
t
RAC
in
t
OEA
t
OEH
t
CAC
t
AA
t
OLZ
t
DH
t
DS
out
t
OEZ
t
CLZ
t
OED
in
t
OLZ
t
DH
t
DS
out
t
OEZ
t
CLZ
t
OED
in
t
OEH
t
AA
t
CAC
t
OEA
t
OEH
Hi-Z
Hi-Z
Hi-Z
Hi-Z
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