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74HCT257DB Scheda tecnica(PDF) 3 Page - NXP Semiconductors

Il numero della parte 74HCT257DB
Spiegazioni elettronici  Quad 2-input multiplexer; 3-state
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Produttore elettronici  NXP [NXP Semiconductors]
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74HCT257DB Scheda tecnica(HTML) 3 Page - NXP Semiconductors

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74HC_HCT257_5
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 05 — 13 January 2010
3 of 17
NXP Semiconductors
74HC257; 74HCT257
Quad 2-input multiplexer; 3-state
Fig 3.
Functional diagram
mgr280
S
1
1I
0
2
1Y
4
1I
1
3
SELECTOR
3-STATE MULTIPLEXER OUTPUTS
2I
0
5
2Y
7
2I
1
6
3I
0
11
3Y
9
3I
1
10
4I
0
14
4Y
12
4I
1
13
OE
15
Fig 4.
Logic diagram
001aad468
1Y
S
OE
1I0
1I1
2I0
2I1
3I0
3I1
4I0
4I1
2Y
3Y
4Y


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