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74AHC257 Fiches technique(PDF) 4 Page - NXP Semiconductors

No de pièce 74AHC257
Description  Quad 2-input multiplexer 3-state
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Fabricant  NXP [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo NXP - NXP Semiconductors

74AHC257 Fiches technique(HTML) 4 Page - NXP Semiconductors

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74AHC_AHCT257_2
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 02 — 9 May 2008
4 of 16
NXP Semiconductors
74AHC257; 74AHCT257
Quad 2-input multiplexer; 3-state
5.
Pinning information
5.1 Pinning
5.2 Pin description
Fig 5.
Pin configuration SO16 and TSSOP16
257
S
VCC
1I0
OE
1I1
4I0
1Y
4I1
2I0
4Y
2I1
3I0
2Y
3I1
GND
3Y
001aad499
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
Table 2.
Pin description
Symbol
Pin
Description
S
1
common data select input
1I0
2
data input from source 0
1I1
3
data input from source 1
1Y
4
multiplexer output
2I0
5
data input from source 0
2I1
6
data input from source 1
2Y
7
multiplexer output
GND
8
ground (0 V)
3Y
9
multiplexer output
3I1
10
data input from source 1
3I0
11
data input from source 0
4Y
12
multiplexer output
4I1
13
data input from source 1
4I0
14
data input from source 0
OE
15
output enable input (active LOW)
VCC
16
supply voltage


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