MC74F139

MC54/74F139 DUAL 1-OF-4 DECODER The MC54/74F139 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 miniterms of two variables. DUAL 1-OF-4 DECODER FAST™ SHOTTKY TTL Multifunction Capability Two Completely Independent 1-of-4 Decoders Active Low Mutually Exclusive Outputs Input Clamp Diodes Limit High-Speed Termination Effects CONNECTION DIAGRAM VCC 16 Eb 15 A0b 14 A1b 13 O0b 12 O1b 11 O2b 10 O3b 9 J SUFFIX CERAMIC CASE 620-09 16 1 16 1 N SUFFIX PLASTIC CASE 648-08 1 Ea 2 A0a 3 A1a 4 O0a 5 O1a 6 O2a 7 O3a 8 GND 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION LOGIC DIAGRAM Ea 1 2 A0a A1a 3 Eb 15 A0b A1b 14 13 MC54FXXXJ MC74FXXXN MC74FXXXD Ceramic Plastic SOIC LOGIC SYMBOL 1 2 3 15 14 13 E A0 A1 E A0 A1 O0 O1 O2 O3 O0 O1 O2 O3 4 5 6 7 12 11 10 9 4 5 6 7 O3b 12 11 10 9 O0a O1a O2a O3a O0b O1b O2b VCC = Pin 16 GND = Pin 8 VCC = PIN 16 GND = PIN 8 = PIN NUMBERS FAST AND LS TTL DATA 4-56 MC54/74F139 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 Output Current — High Output Current — Low 54, 74 54, 74 Min 4.5 –55 0 Typ 5.0 25 25 Max 5.5 125 7...