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74F139SC Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer 74F139SC
Beschreibung Dual 1-of-4 Decoder/Demultiplexer
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 5 Seiten
74F139SC Datasheet, Funktion
April 1988
Revised July 1999
74F139
Dual 1-of-4 Decoder/Demultiplexer
General Description
The F139 is a high-speed, dual 1-of-4 decoder/demulti-
plexer. 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-out-
put demultiplexer. Each half of the F139 can be used as a
function generator providing all four minterms of two vari-
ables.
Features
s Multifunction capability
s Two completely independent 1-of-4 decoders
s Active LOW mutually exclusive outputs
Ordering Code:
Order Number Package Number
Package Description
74F139SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
74F139SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F139PC
N16E
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
IEEE/IEC
Truth Table
Inputs
Outputs
E A0 A1 O0 O1 O2 O3
HX X H H H H
LL L L H H H
LH L H L H H
LL H H H L H
LH H H H H L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
© 1999 Fairchild Semiconductor Corporation DS009479
www.fairchildsemi.com





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