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MC74AC157 fiches techniques PDF

ON Semiconductor - Quad 2-Input Multiplexer

Numéro de référence MC74AC157
Description Quad 2-Input Multiplexer
Fabricant ON Semiconductor 
Logo ON Semiconductor 





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MC74AC157 fiche technique
MC74AC157, MC74ACT157
Quad 2-Input Multiplexer
The MC74AC157/74ACT157 is a high−speed quad 2−input
multiplexer. Four bits of data from two sources can be selected using
the common Select and Enable inputs. The four outputs present the
selected data in the true (non−inverted) form.
The MC74AC157/74ACT157 can also be used as a function
generator.
Features
Outputs Source/Sink 24 mA
ACT157 Has TTL Compatible Inputs
These are Pb−Free Devices
VCC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
12345678
S I0a I1a Za I0b I1b Zb GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
TRUTH TABLE
Inputs
E S I0 I1
HXXX
L HX L
LHXH
LLLX
L LHX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Outputs
Z
L
L
H
L
H
www.onsemi.com
16
1
16
1
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx157G
AWLYWW
TSSOP−16
DT SUFFIX
CASE 948F
16
xxx
157
ALYWG
G
1
xxx = AC or ACT
A = Assembly Location
WL or L = Wafer Lot
Y = Year
WW or W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
PIN NAMES
PIN
I0a−I0d
I1a−I1d
E
S
Za−Zd
FUNCTION
Source 0 Data Inputs
Source 0 Data Inputs
Enable Input
Select Input
Outputs
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 8
1
Publication Order Number:
MC74AC157/D

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