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MC74ACT139 Datenblatt(PDF) 1 Page - ON Semiconductor |
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MC74ACT139 Datenblatt(HTML) 1 Page - ON Semiconductor |
1 / 11 page © Semiconductor Components Industries, LLC, 2006 March, 2006 − Rev. 7 1 Publication Order Number: MC74AC139/D MC74AC139, MC74ACT139 Dual 1−of−4 Decoder/Demultiplexer The MC74AC139/74ACT139 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 MC74AC139/74ACT139 can be used as a function generator providing four minterms of two variables. • Multifunctional Capability • Two Completely Independent 1−of−4 Decoders • Active LOW Mutually Exclusive Outputs • Outputs Source/Sink 24 mA • ′ACT139 Has TTL Compatible Inputs w These devices are available in Pb−free package(s). Specifications herein apply to both standard and Pb−free devices. Please see our website at www.onsemi.com for specific Pb−free orderable part numbers, or contact your local ON Semiconductor sales office or representative. 15 16 14 13 12 11 10 2 1 3 4 567 VCC 9 8 Eb A0b A1b Ea GND O0b O1b O2b O3b A0a A1a O0a O1a O2a O3a Figure 1. Pinout: 16−Lead Packages Conductors (Top View) PIN ASSIGNMENT PIN FUNCTION A0, A1 Address Inputs E Enable Inputs O0−O3 Outputs TRUTH TABLE Inputs Outputs E A0 A1 O0 O1 O2 O3 H X X H H H H L L L L H H H L H L H L H H L L H H H L H L H H H H H L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial http://onsemi.com DIP−16 N SUFFIX CASE 648 1 16 SO−16 D SUFFIX CASE 751B 1 16 Device Package Shipping ORDERING INFORMATION MC74AC139N PDIP−16 25 Units/Rail MC74AC139D SOIC−16 48 Units/Rail MC74AC139DR2 2500 Tape & Reel TSSOP−16 DT SUFFIX CASE 948F MC74AC139DT TSSOP−16 96 Units/Rail MC74AC139DTR2 TSSOP−16 SOIC−16 2500 Tape & Reel MC74ACT139N PDIP−16 25 Units/Rail MC74ACT139D SOIC−16 48 Units/Rail MC74ACT139DR2 2500 Tape & Reel MC74ACT139DT TSSOP−16 96 Units/Rail SOIC−16 1 16 See general marking information in the device marking section on page 6 of this data sheet. DEVICE MARKING INFORMATION 1 16 EIAJ−16 M SUFFIX CASE 966 MC74AC139M EIAJ−16 MC74AC139MEL EIAJ−16 2000 Tape & Reel MC74ACT139M EIAJ−16 MC74ACT139MEL EIAJ−16 2000 Tape & Reel 50 Units/Rail 50 Units/Rail |
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