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MC74AC157_15 Datasheet, PDF (1/9 Pages) ON Semiconductor – Quad 2-Input Multiplexer | |||
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MC74AC157, MC74ACT157
Quad 2-Input Multiplexer
The MC74AC157/74ACT157 is a highâspeed quad 2âinput
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 (nonâinverted) form.
The MC74AC157/74ACT157 can also be used as a function
generator.
Features
⢠Outputs Source/Sink 24 mA
⢠â²ACT157 Has TTL Compatible Inputs
⢠These are PbâFree 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: 16âLead 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
SOICâ16
D SUFFIX
CASE 751B
1
xxx157G
AWLYWW
TSSOPâ16
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 = PbâFree Package
(Note: Microdot may be in either location)
PIN NAMES
PIN
I0aâI0d
I1aâI1d
E
S
ZaâZd
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
1
January, 2015 â Rev. 8
Publication Order Number:
MC74AC157/D
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