MC74F539 查看數據表（PDF） - Motorola => Freescale
零件编号
产品描述 (功能)
比赛名单
MC74F539 Datasheet PDF : 3 Pages
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TRUTH TABLE (each half)
Function
High Impedance
Disable
Active HIGH
Output
(P = L)
Active LOW
Output
(P = H)
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
MC54 / 74F539
Inputs
Outputs
OE
E
A1
A0
O0
O1
O2
O3
H
X
X
X
Z
Z
Z
Z
L
H
X
X
On = P
L
L
L
L
H
L
L
L
L
L
L
H
L
H
L
L
L
L
H
L
L
L
H
L
L
L
H
H
L
L
L
H
L
L
L
L
L
H
H
H
L
L
L
H
H
L
H
H
L
L
H
L
H
H
L
H
L
L
H
H
H
H
H
L
FAST AND LS TTL DATA
4-211
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