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零件编号
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MSM81C55-5RS 查看數據表(PDF) - Oki Electric Industry
零件编号
产品描述 (功能)
生产厂家
MSM81C55-5RS
2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER
Oki Electric Industry
MSM81C55-5RS Datasheet PDF : 19 Pages
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¡ Semiconductor
Basic Input Mode
RD
t
PR
Port Input
Data Bus
MSM81C55-5RS/GS/JS
t
RP
Basic Output Mode
WR
t
WP
Data Bus
Port Output
Note:
The DATA BUS timing is the same as the read and write cycles.
Timer Waveforms 1
Load Counter From
Count Length Register
2
1
5
t
f
TIMER IN
t
r
TIMER OUT
(Pulse)
(Note)
TIMER OUT
(Square Wave)
(Note)
Load Counter From
Count Length Register
4
3
2
1
5
t
2
(T.C)
t1
t
CYC
t
TL
t
TH
t
TL
t
TH
Count Down(5
Æ
1)
Note:
Periodically outut according to the output mode (m1=1) programming contents.
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