TL/F/9479
54F/74F139
Dual
1-of-4
Decoder/Demultiplexer
November 1994
54F/74F139
Dual 1-of-4 Decoder/Demultiplexer
General Description
The ’F139 is a high-speed, dual 1-of-4 decoder/demultiplex-
er. The device has two independent decoders, each accept-
ing two inputs and providing four mutually exclusive active
LOW outputs. Each decoder has an active LOW Enable in-
put which can be used as a data input for a 4-output demul-
tiplexer. Each half of the ’F139 can be used as a function
generator providing all four minterms of two variables.
Features
Y
Multifunction capability
Y
Two completely independent 1-of-4 decoders
Y
Active LOW mutually exclusive outputs
Y
Guaranteed 4000V minimum ESD protection
Commercial Military
Package
Package Description
Number
74F139PC N16E 16-Lead (0.300 Wide) Molded Dual-In-Line
54F139DM (Note 2) J16A 16-Lead Ceramic Dual-In-Line
74F139SC (Note 1) M16A 16-Lead (0.150 Wide) Molded Small Outline, JEDEC
74F139SJ (Note 1) M16D 16-Lead (0.300 Wide) Molded Small Outline, EIAJ
54F139FM (Note 2) W16A 16-Lead Cerpack
54F139LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Note 1: Devices also available in 13 reel. Use suffix e SCX and SJX.
Note 2: Military grade device with environmental and burn-in processing. Use suffix e DMQB, FMQB and LMQB.
Logic Symbols Connection Diagrams
TL/F/9479–3
IEEE/IEC
TL/F/9479–7
TL/F/9479–4
Pin Assignment
DIP, SOIC and Flatpak
TL/F/9479–1
Pin Assignment
for LCC
TL/F/9479–2
TRI-STATE is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M75/Printed in U. S. A.