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IN74HC138A - 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS

Key Features

  • three Chip Select inputs, two active-low and one active-high to facilitate the demultiplexing, cascading, and chip-selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.
  • Outputs Directly Interface to CMOS, NMOS, and TTL.
  • Operating Voltage Range: 2.0 to 6.0 V.
  • Low Input Current: 1.0 µA.

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Datasheet Details

Part number IN74HC138A
Manufacturer Unknown Manufacturer
File Size 103.11 KB
Description 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS
Datasheet download datasheet IN74HC138A Datasheet

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Full PDF Text Transcription (Reference)

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TECHNICAL DATA IN74HC138A 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The IN74HC138A is identical in pinout to the LS/ALS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The IN74HC138A decodes a three-bit Address to one-of-eight active-low outputs. This device features three Chip Select inputs, two active-low and one active-high to facilitate the demultiplexing, cascading, and chip-selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.