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MC74AC139DG データシート(PDF) 1 Page - ON Semiconductor |
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MC74AC139DG データシート(HTML) 1 Page - ON Semiconductor |
1 / 9 page © Semiconductor Components Industries, LLC, 2015 January, 2015 − Rev. 8 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. Features • Multifunctional Capability • Two Completely Independent 1−of−4 Decoders • Active LOW Mutually Exclusive Outputs • Outputs Source/Sink 24 mA • ′ACT139 Has TTL Compatible Inputs • These are Pb−Free Devices 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 www.onsemi.com See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ORDERING INFORMATION SOIC−16 D SUFFIX CASE 751B TSSOP−16 DT SUFFIX CASE 948F 1 16 1 16 MARKING DIAGRAMS xxx = AC or ACT A = Assembly Location WL or L = Wafer Lot Y = Year WW or W = Work Week G or G = Pb−Free Package 1 16 xxx139G AWLYWW xxx 139 ALYW G G 1 16 (Note: Microdot may be in either location) |
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同様の説明 - MC74AC139DG |
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