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74F139SC Scheda tecnica(PDF) 1 Page - Fairchild Semiconductor |
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74F139SC Scheda tecnica(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page © 2000 Fairchild Semiconductor Corporation DS009479 www.fairchildsemi.com 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/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-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: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC Connection Diagram Truth Table H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial 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 Inputs Outputs E A0 A1 O0 O1 O2 O3 H X X HHHH L LLL H H H L H LH LH H L L HHH L H L HHHHH L |
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