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CD74HC257M データシート(PDF) 2 Page - Texas Instruments

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部品番号 CD74HC257M
部品情報  High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

CD74HC257M データシート(HTML) 2 Page - Texas Instruments

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2
Functional Diagram
3 CIRCUITS IDENTICAL TO CIRCUIT
IN ABOVE DASHED ENCLOSURE
OE
S
4I1
4I0
3I1
3I0
2I1
2I0
1I1
1I0
15
1
13
14
10
11
6
5
3
2
12
9
7
4
P
N
4Y
3Y
2Y
1Y
TRUTH TABLE
OUTPUT
ENABLE
SELECT
INPUT
DATA INPUTS
OUTPUT
OE
S
I0
I1
Y
H
XXX
Z
LLL
X
L
L
L
HXH
LH
X
L
L
L
HXH
H
H= High Voltage Level
L= Low Voltage Level
X= Don’t Care
Z= High Impedance, OFF State
CD54HC257, CD74HC257, CD54HCT257, CD74HCT257


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