參數(shù)資料
型號: MB8117405B-50
廠商: Fujitsu Limited
英文描述: 4 M ×4 BITS Fast Page Mode Dynamic RAM(CMOS 4 M ×4 位快速頁面存取模式RAM)
中文描述: 4米× 4位快速頁面模式動態(tài)RAM(的CMOS 4米× 4位快速頁面存取模式的RAM)
文件頁數(shù): 18/31頁
文件大小: 588K
代理商: MB8117405B-50
18
MB8117405B-50/-60
“H” or “L” level (excluding Address and DQ)
“H” or “L” level, “H”
“L” or “L”
“H” transition (Address and DQ)
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
OH
V
OL
V
IH
V
IL
t
RASP
t
CRP
t
ASR
t
ASC
t
RCS
t
RHCP
t
RP
t
RCD
t
CAS
t
RSH
t
HPC
t
CAS
t
CAS
t
CP
t
RCH
t
RCS
t
RCH
t
RCS
t
DZC
t
CPA
t
CAH
t
AR
t
CAH
t
RAH
t
ASC
t
RRH
t
CAH
t
ASC
t
RCH
t
ON
t
CAC
t
ON
t
RAC
t
AA
t
RAD
t
CSH
t
RAL
t
DZO
t
AA
t
RDD
t
OH
t
CDD
t
OFF
t
OH
t
OED
t
CPA
t
ON
t
OHC
t
CAC
t
OHC
t
OFR
t
OEZ
t
OH
CAS
DESCRIPTION
The hyper page mode of operation permits faster successive memory operations at multiple column locations of the same row
address.
This operation is performed by strobing in the row address and maintaining RAS at a Low level during all successive memory cy-
cles in which the row address is latched. The access time is determined by t
CAC
, t
AA
, t
CPA
, or t
OEA
, whichever one is the latest in
occurring.
Fig. 9 – HYPER PAGE MODE READ CYCLE
RAS
A
0
to A
10
WE
DQ
(Input)
DQ
(Output)
OE
During one cycle is achieved in hyper-page mode, the input/output timing apply the same manner as the former cycle.
HIGH-Z
HIGH-Z
ROW
ADD
COL
ADD
COL
ADD
COL
ADD
VALID
DATA OUT
VALID
DATA OUT
VALID
DATA OUT
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