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CD74AC251 Datasheet(PDF) 2 Page - Texas Instruments

Part No. CD74AC251
Description  8-Input Multiplexer, Three-State
Download  14 Pages
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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CD74AC251 Datasheet(HTML) 2 Page - Texas Instruments

 
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2
Functional Diagram
TRUTH TABLE
INPUTS
OUTPUTS
SELECT
OUTPUT ENABLE OE
Y
Y
S2
S1
S0
XXX
H
Z
Z
LLL
L
I0
I0
LL
H
L
I1
I1
LHL
L
I2
I2
LH
H
L
I3
I3
HL
L
L
I4
I4
HLH
L
I5
I5
HH
L
L
I6
I6
HHH
L
I7
I7
H = High logic level,L=Low logic level, Z = High impedance (off),
X = Irrelevant, I0, I1...I7 = The level of the respective input
5
6
Y
Y
4
3
2
1
14
12
13
15
I0
I7
I6
I5
I4
I3
I2
I1
11
S0
10
S1
9
S2
THREE-STATE
7
DISABLE OE
CHANNEL
INPUTS
DATA
SELECT
OUTPUTS
CD74AC251, CD74ACT251


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