MC74LCX139(2012) データシートの表示（PDF） - ON Semiconductor

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MC74LCX139
(Rev.:2012)

Dual Low-Voltage CMOS 2-to-4 Decoder/Demultiplexer With 5 V−Tolerant Inputs

ON Semiconductor 

MC74LCX139

Dual Low-Voltage CMOS

2-to-4 Decoder/Demultiplexer

With 5 V−Tolerant Inputs

The MC74LCX139 is a high performance, 2−to−4 decoder/

demultiplexer 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 MC74LCX139 inputs

to be safely driven from 5 V devices. The MC74LCX139 is suitable

for memory address decoding and other TTL level bus oriented

applications.

The MC74LCX139 high−speed 2−to−4 decoder/demultiplexer

accepts two binary weighted inputs (A0, A1) and, when enabled,

provides four mutually exclusive active−LOW outputs. The LCX139

features an active low Enable input. All outputs will be HIGH unless

En is LOW. The LCX139 can be used as an 8−output demultiplexer by

using one of the active−LOW Enable inputs as the data input and the

other Enable input as a strobe. The Enable inputs which are not used

must be permanently tied to ground.

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

 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

 These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

16

1

http://onsemi.com

MARKING

DIAGRAMS

16

SOIC−16

D SUFFIX

CASE 751B

LCX139G

AWLYWW

1

16

16

1

TSSOP−16

DT SUFFIX

CASE 948F

LCX

139

ALYWG

G

1

A

WL, L

Y

WW, W

G or G

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 3 of this data sheet.

 Semiconductor Components Industries, LLC, 2012

1

October, 2012 − Rev. 7

Publication Order Number:

MC74LCX139/D

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