MM74C240 查看數據表（PDF） - Fairchild Semiconductor
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产品描述 (功能)
生产厂家
MM74C240
Fairchild Semiconductor
MM74C240 Datasheet PDF : 8 Pages
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Logic Diagrams
MM74C240
MM74C244
Truth Tables
MM74C240
ODA
IA
OA
1
X
Z
1
X
Z
0
0
1
0
1
0
ODB
IB
OB
1
X
Z
1
X
Z
0
0
1
0
1
0
1 = HIGH
0 = LOW
MM74C244
ODA
IA
OA
1
X
Z
1
X
Z
0
0
0
0
1
1
ODB
IB
OB
1
X
Z
1
X
Z
0
0
0
0
1
1
X = Don’t Care
Z = 3-STATE
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