參數(shù)資料
型號(hào): μPD4265805
廠商: NEC Corp.
英文描述: 8,388,608 Words by 8 Bits CMOS dynamic RAMs(64M 動(dòng)態(tài)RAM)
中文描述: 8388608字8位的CMOS(6400動(dòng)態(tài)RAM動(dòng)態(tài)存儲(chǔ)器)
文件頁(yè)數(shù): 25/36頁(yè)
文件大?。?/td> 226K
代理商: ΜPD4265805
μ
PD4264805, 42S65805, 4265805
25
Hyper Page Mode (EDO) Read Modify Write Cycle
Remark
In the hyper page mode (EDO), 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
HCAS
t
HCAS
t
CP
t
HPRWC
t
HCAS
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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