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參數(shù)資料
| 型號： | MB8117800A-70 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2 M X 8 BIT FAST PAGE MODE DYNAMIC RAM |
| 中文描述： | 2的MX 8位快速頁面模式動態(tài)隨機存儲器 |
| 文件頁數(shù)： | 17/27頁 |
| 文件大?。?/td> | 580K |
| 代理商： | MB8117800A-70 |
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MB8117800A-60/-70
COL
ADD
ROW
ADD
COL
ADD
DESCRIPTION
The fast page mode of operation permits faster sucessive memory operations at multiple column locations of the same row address.
This operations is performed by strobing in the row address and maintaining RAS at a Low level and WE at a Hight level druing all
successive memory cycles in which the row address is latched. The address time is determined by t
CAC
, t
AA
, t
CPA
, or t
OEA
, whichever
one is the latest in occurring.
RAS
V
IH
V
IL
CAS
V
IH
V
IL
WE
V
IH
V
IL
DQ
(Output)
V
OH
V
OL
Fig. 9 – FAST PAGE MODE READ CYCLE
t
RASP
t
RHCP
t
RCD
t
RP
t
RSH
t
CRP
t
RAD
t
CAS
t
CSH
t
CP
t
CAS
t
RAH
t
CAH
t
ASC
t
ASC
t
CAH
t
CAH
t
RRH
t
ASC
t
RAL
t
RCS
t
RCH
t
RCS
t
RCH
t
CDD
t
RCS
t
RCH
t
ON
t
RAC
t
AA
t
OFF
t
CAC
t
DZC
t
AA
t
OH
t
OH
t
CAC
t
OFF
t
DZC
t
CPA
t
OEL
t
DZC
t
DZO
t
ON
t
DZO
t
OEZ
t
OEA
t
OEZ
t
OEA
t
OED
t
OED
DQ
(Input)
V
IH
V
IL
OE
V
IH
V
IL
COL
ADD
“H” or “ L”
Valid Data
t
ASR
A
0
to A
10
V
IH
V
IL
HIGH-Z
HIGH-Z
HIGH-Z
t
PC
t
CAS
t
DZO
t
OH
t
AR
t
OH
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