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  ON Semiconductor Electronic Components Datasheet  

MC74LCX157 Datasheet

Low-Voltage CMOS Quad 2-Input Multiplexer

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MC74LCX157 pdf
MC74LCX157
Low−Voltage CMOS Quad
2−Input Multiplexer
With 5 V−Tolerant Inputs
(Non−Inverting)
The MC74LCX157 is a high performance, quad 2−input
multiplexer operating from a 2.3 to 3.6 V supply. High impedance
TTL compatible inputs significantly reduce current loading to input
drivers while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5 V allows MC74LCX157 inputs
to be safely driven from 5 V devices.
Four bits of data from two sources can be selected using the Select
and Enable inputs. The four outputs present the selected data in the
true (non−inverted) form. The MC74LCX157 can also be used as a
function generator. Current drive capability is 24 mA at the outputs.
Features
Designed for 2.3 to 3.6 V VCC Operation
5 V Tolerant Inputs − Interface Capability With 5 V TTL Logic
LVTTL Compatible
LVCMOS Compatible
24 mA Balanced Output Sink and Source Capability
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Near Zero Static Supply Current (10 mA) Substantially Reduces
System Power Requirements
Latchup Performance Exceeds 500 mA
ESD Performance: Human Body Model >2000 V
Machine Model >200 V
Pb−Free Packages are Available*
16
1
http://onsemi.com
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
LCX157
AWLYWW
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
LCX
157
ALYW
1
16
16
1
SOEIAJ−16
M SUFFIX
CASE 966
74LCX157
ALYW
1
A
L, WL
Y
W, WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 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
January, 2005 − Rev. 4
1
Publication Order Number:
MC74LCX157/D


  ON Semiconductor Electronic Components Datasheet  

MC74LCX157 Datasheet

Low-Voltage CMOS Quad 2-Input Multiplexer

No Preview Available !

MC74LCX157 pdf
MC74LCX157
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. 16−Lead Pinout (Top View)
PIN NAMES
Pins
Function
I0n Source 0 Data Inputs
I1n Source 1 Data Inputs
E Enable Input
S Select Input
Zn Outputs
S1
15
E
I0a 2
I1a 3
I0b 5
I1b 6
I0c 14
I1c 13
I0d 11
I1d 10
Figure 2. Logic Diagram
4
Za
7 Zb
12
Zc
9 Zd
TRUTH TABLE
Inputs
Outputs
E S I0n I1n
Zn
HXXX
L HX L
LHXH
LLLX
L LHX
L
L
H
L
H
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level ; For ICC Reasons DO
NOT FLOAT Inputs
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2


Part Number MC74LCX157
Description Low-Voltage CMOS Quad 2-Input Multiplexer
Maker ON Semiconductor
Total Page 8 Pages
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