© 2004 Fairchild Semiconductor Corporation

DS012417

www.fairchildsemi.com

March 1995

Revised February 2004

74LCX138

Low Voltage 1-of-8 Decoder/Demultiplexer

with 5V Tolerant Inputs

General Description

The LCX138 is a high-speed 1-of-8 decoder/demultiplexer.

This device is ideally suited for high-speed memory chip

select address decoding. The multiple input enables allow

parallel expansion to a 1-of-24 decoder using just three

LCX138 devices or a 1-of-32 decoder using four LCX138

devices and one inverter.

The 74LCX138 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

s Leadless DQFN package

Ordering Code:

Note 1: Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Note 2: DQFN package available in Tape and Reel only.

Order Number

Package

Number

Package Description

74LCX138M

(Note 1)

M16A

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

74LCX138SJ

(Note 1)

M16D

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

74LCX138BQX

(Note 2)

MLP016E

16-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241,

2.5 x 3.5mm

74LCX138MTC

(Note 1)

MTC16

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