74F139

74F139 Dual 1-of-4 Decoder/Demultiplexer

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74F139 Dual 1-of-4 Decoder/Demultiplexer

April 1988 Revised September 2000

74F139 Dual 1-of-4 Decoder/Demultiplexer
General Description
The F139 is a high-speed, dual 1-of-4 decoder/demultiplexer. The device has two independent decoders, each accepting two inputs and providing four mutually exclusive active LOW outputs. Each decoder has an active LOW Enable input which can be used as a data input for a 4-output demultiplexer. Each half of the F139 can be used as a function generator providing all four minterms of two variables.

Features
s Multifunction capability s Two completely independent 1-of-4 decoders s Active LOW mutually exclusive outputs

Ordering Code:
Order Number 74F139SC 74F139SJ 74F139PC Package Number M16A M16D N16E Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

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

Logic Symbols

Connection Diagram

Truth Table
Inputs IEEE/IEC E H L L L L A0 X L H L H A1 X L L H H O0 H L H H H O1 H H L H H O2 H H H L H O3 H H H H L Outputs

H HIGH Voltage Level L LOW Voltage Level X Immaterial

2000 Fairchild Semiconductor Corporation

DS009479

www.fairchildsemi.com