CDP1823 데이터 시트보기 (PDF) - Intersil
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CDP1823 Datasheet PDF : 7 Pages
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CDP1823, CDP1823C
FUNCTION
MRD
MWR
OPERATIONAL MODES
CS1 CS2 CS3 CS4
Read
0
X
1
0
0
1
Write
1
0
1
0
0
1
Stand-By (Active)
1
1
1
0
0
1
Not Selected
X
X
0
X
X
X
X
X
X
1
X
X
X
X
X
X
1
X
X
X
X
X
X
0
X
X
X
X
X
X
Logic 1 = High, Logic 0 = Low, X = Don’t Care
CS5
BUS TERMINAL STATE
0 Storage State of Addressed Word
0 Input High-Impedance
0 High Impedance
X High Impedance
X High Impedance
X High Impedance
X High Impedance
1 High Impedance
6-25
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