© 2001 Fairchild Semiconductor Corporation

DS012465

www.fairchildsemi.com

May 1995

Revised February 2001

74LCX157

Low Voltage Quad 2-Input Multiplexer

with 5V Tolerant Inputs

General Description

The LCX157 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 LCX157 can also be used as a function generator.

The 74LCX157 is fabricated with advanced CMOS technol-

ogy to achieve high speed operation while maintaining

CMOS low power dissipation.

Features

s 5V tolerant inputs

s Power down high impedance inputs and outputs

s

±24 mA output drive (V

s Implements patented noise/EMI reduction circuitry

s Latch-up performance exceeds 500 mA

s ESD performance:

Human body model

> 2000V

Machine model

> 200V

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbols

IEEE/IEC

Connection Diagram

Pin Descriptions

Order Number

Package Number

Package Description

74LCX157M

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

74LCX157SJ

M16D

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

74LCX157MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Pin Names

Description

Source 0 Data Inputs

Source 1 Data Inputs

E

Enable Input

S

Select Input

Outputs