74AHC257 Просмотр технического описания (PDF) - NXP Semiconductors.
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74AHC257 Datasheet PDF : 16 Pages
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Nexperia
5. Pinning information
5.1 Pinning
74AHC257; 74AHCT257
Quad 2-input multiplexer; 3-state
S1
1I0 2
1I1 3
1Y 4
2I0 5
2I1 6
2Y 7
GND 8
Fig 5. Pin configuration SO16 and TSSOP16
16 VCC
15 OE
14 4I0
13 4I1
257
12 4Y
11 3I0
10 3I1
9 3Y
001aad499
5.2 Pin description
Table 2.
Symbol
S
1I0
1I1
1Y
2I0
2I1
2Y
GND
3Y
3I1
3I0
4Y
4I1
4I0
OE
VCC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
common data select input
data input from source 0
data input from source 1
multiplexer output
data input from source 0
data input from source 1
multiplexer output
ground (0 V)
multiplexer output
data input from source 1
data input from source 0
multiplexer output
data input from source 1
data input from source 0
output enable input (active LOW)
supply voltage
74AHC_AHCT257_2
Product data sheet
Rev. 02 — 9 May 2008
© Nexperia B.V. 2017. All rights reserved
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