參數(shù)資料
型號: μPD4264405
廠商: NEC Corp.
英文描述: 16,777,216 Words by 4 Bits CMOS Dynamic RAMs(64M 動態(tài)RAM)
中文描述: 16,777,216詞由4位的CMOS動態(tài)存儲器(RAM的6400動態(tài))
文件頁數(shù): 25/36頁
文件大小: 256K
代理商: ΜPD4264405
μ
PD4264405, 42S65405, 4265405
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
相關(guān)PDF資料
PDF描述
μPD4265405 16,777,216 Words by 4 Bits CMOS Dynamic RAMs(64M 動態(tài)RAM)
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μPD4264805 8,388,608 Words by 8 Bits CMOS dynamic RAMs(64M 動態(tài)RAM)
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