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MC74LCX157MEL

Low-Voltage CMOS Quad 2-Input Multiplexer With 5V–Tolerant Inputs (Non–Inverting)

ON Semiconductor 

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 2.3 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 2.3 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

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)

MC74LCX157

LOW–VOLTAGE CMOS

QUAD 2–INPUT MULTIPLEXER

16

1

16

1

D SUFFIX

PLASTIC SOIC

CASE 751B–05

M SUFFIX

PLASTIC SOIC EIAJ

CASE 966–01

16

1

DT SUFFIX

PLASTIC TSSOP

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

© Semiconductor Components Industries, LLC, 2001

1

January, 2001 – Rev. 2

Publication Order Number:

MC74LCX157/D

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