參數(shù)資料
型號(hào): MB81V4405C-60
廠商: Fujitsu Limited
英文描述: CMOS 1M ×4 BIT Hyper Page Mode Dynamic RAM(CMOS 1M ×4 位超級(jí)頁(yè)面存取模式動(dòng)態(tài)RAM)
中文描述: 的CMOS 100萬(wàn)× 4位超頁(yè)模式動(dòng)態(tài)RAM的CMOS(100萬(wàn)× 4位超級(jí)頁(yè)面存取模式動(dòng)態(tài)內(nèi)存)
文件頁(yè)數(shù): 18/30頁(yè)
文件大?。?/td> 348K
代理商: MB81V4405C-60
18
MB81V4405C-60/MB81V4405C-70
t
RRH
t
COL
t
OEA
t
OH
t
OEA
t
OFF
t
CAC
t
CAS
t
CAS
t
RP
Fig. 10 – HYPER PAGE MODE READ CYCLE (OE CONTROLLED)
RAS
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
CAS
WE
DQ
(Input)
A
0
to A
9
V
OH
V
OL
DQ
(Output)
V
IH
V
IL
OE
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 and WE at a High level
during all successive memory cycles 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.
To obtain a high impedance state, set OE or both RAS and CAS going high level.
t
RASP
t
CRP
t
ASR
t
ASC
t
RCS
t
RHCP
“H” or “L”
t
RCD
ROW
ADD
COL
ADD
t
RSH
t
HPC
t
CAS
t
CP
t
DZC
t
CAH
t
CAH
t
RAH
t
ASC
t
CAH
t
ASC
Valid Data
t
CAC
t
AA
COL
ADD
t
CSH
t
RAL
HIGH-Z
HIGH-Z
t
OFR
HIGH-Z
t
OH
t
OEZ
t
OED
t
CAC
During one cycle is achieved, the input/output timing apply the same manner as the former cycle.
t
RDD
t
OH
t
OH
t
CPA
t
ON
t
OEA
t
OECH
t
OEP
t
DZO
t
ON
t
RAC
t
CP
t
CDD
t
AR
t
CAL
t
OH
t
OEZ
t
OEZ
COL
ADD
t
RAD
t
RCH
t
CPA
t
AA
t
AA
相關(guān)PDF資料
PDF描述
MB81V4405C-70 CMOS 1M ×4 BIT Hyper Page Mode Dynamic RAM(CMOS 1M ×4 位超級(jí)頁(yè)面存取模式動(dòng)態(tài)RAM)
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