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SL74HCT139

System Logic Semiconductor
Part Number SL74HCT139
Manufacturer System Logic Semiconductor
Description Dual 1-of-4 Decoder/Demultiplexer
Published Apr 16, 2005
Detailed Description SL74HCT139 Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HCT139A is identical in pinout ...
Datasheet PDF File SL74HCT139 PDF File

SL74HCT139
SL74HCT139

Overview
SL74HCT139 Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HCT139A is identical in pinout to the LS/ALS139.
The SL74HCT139A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
This device consists of two independent 1-of-4 decoders, each of which decodes a two-bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and cascading functions.
The demultiplexing function is accomplished by using the Address inputs to select the desired device output, and utilizing the Select as a data input.
• TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.
5 to 5.
5 V • Low Input Current: 1.
0 µA ORDERING INFORMATION SL74HCT139N Plastic SL74HCT139D SOIC TA = -55° to 125° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs Select PIN 16 =VCC PIN 8 = GND H L L L L A1 X L L H H A0 X L H L H Y0 H L...


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