MC74AC157DR2 View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
MC74AC157DR2 Datasheet PDF : 10 Pages
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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 (noninverted) form.
The MC74AC157/74ACT157 can also be used as a function
generator.
Features
• Outputs Source/Sink 24 mA
• ′ACT157 Has TTL Compatible Inputs
• Pb−Free Packages are Available*
VCC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
http://onsemi.com
16
1
16
1
PDIP−16
N SUFFIX
CASE 648
SOIC−16
D SUFFIX
CASE 751B
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
16
1
TSSOP−16
DT SUFFIX
CASE 948F
16
1
EIAJ−16
M SUFFIX
CASE 966
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
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 3 of this data sheet.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
1
January, 2005 − Rev. 6
Publication Order Number:
MC74AC157/D
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