參數(shù)資料
型號: MB8117800A-60
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): 18/27頁
文件大?。?/td> 580K
代理商: MB8117800A-60
18
MB8117800A-60/-70
DESCRIPTION
The fast page mode early write cycle is executed in the same manner as the fast page mode read cycle except the states of WE and
OE are reversed. Data appearing on the DQ pins is latched on the falling edge of CAS and written into memory. During the fast page
mode early write cycle, including the delayed (OE) write and read-modify-write cycles, t
CWL
must be satisfied.
Fig. 10 – FAST PAGE MODE EARLY WRITE CYCLE (OE = “H” or “L”)
“H” or “ L”
t
CAS
t
PC
t
CSH
t
RASP
t
CAS
t
CP
t
RSH
t
RP
t
CAS
t
RCD
t
CAH
t
ASC
t
CAH
t
AR
t
ASC
t
CAH
t
ASC
COL
ADD
ROW
ADD
COL
ADD
COL
ADD
t
WCS
t
WCH
t
WCS
t
WCH
t
WCR
t
WCH
t
WCS
t
DS
t
DH
t
DS
t
DH
t
DH
t
DS
t
DHR
VALID
DATA
VALID
DATA
VALID
DATA
RAS
V
IH
V
IL
CAS
V
IH
V
IL
WE
V
IH
V
IL
t
RAH
t
ASR
t
CRP
A
0
to A
10
V
IH
V
IL
DQ
(Output)
V
OH
V
OL
DQ
(Input)
V
IH
V
IL
HIGH-Z
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