74F251A 데이터 시트보기 (PDF) - Philips Electronics
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74F251A Datasheet PDF : 5 Pages
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Philips Semiconductors
8-input multiplexer (3-State)
Product specification
74F251A
LOGIC DIAGRAM
11
S0
10
S1
9
S2
7
OE
I0
I1
I2
I3
I4
I5
I6
I7
4
3
2
1
15
14
13
12
VCC = Pin 16
GND = Pin 8
FUNCTION TABLE
INPUTS
S2
S1
S0
OE
X
X
X
H
L
L
L
L
L
L
H
L
L
H
L
L
L
H
H
L
H
L
L
L
H
L
H
L
H
H
L
L
H
H
H
L
NOTES:
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
OUTPUTS
Y
Y
Z
Z
I0
I0
I1
I1
I2
I2
I3
I3
I4
I4
I5
I5
I6
I6
I7
I7
5
6
Y
Y
1996 Jan 05
2
SF00781
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