MC74LCX157 Datasheet, PDF (1/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage CMOS Quad
2-Input Multiplexer
With 5V-Tolerant Inputs
(Non-Inverting)
The MC74LCX157 is a high performance, quad 2–input multiplexer
operating from a 2.7 to 3.6V 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 5.5V allows MC74LCX157 inputs to be safely driven from
5V 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 24mA at the outputs.
• Designed for 2.7 to 3.6V VCC Operation
• 5V Tolerant Inputs — Interface Capability With 5V TTL Logic
• LVTTL Compatible
• LVCMOS Compatible
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current (10µA) Substantially Reduces System
Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
MC74LCX157
LOW–VOLTAGE CMOS
QUAD 2–INPUT MULTIPLEXER
D SUFFIX
16–LEAD PLASTIC SOIC PACKAGE
CASE 751B–05
M SUFFIX
16–LEAD PLASTIC SOIC EIAJ PACKAGE
CASE 966–01
VCC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
SD SUFFIX
16–LEAD PLASTIC SSOP PACKAGE
CASE 940B–03
12345678
S I0a I1a Za I0b I1b Zb GND
Figure 1. 16–Lead Pinout (Top View)
DT SUFFIX
16–LEAD PLASTIC TSSOP PACKAGE
CASE 948F–01
PIN NAMES
Pins
Function
I0n
Source 0 Data Inputs
I1n
Source 1 Data Inputs
E
Enable Input
S
Select Input
Zn
Outputs
3/97
© Motorola, Inc. 1997
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