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Part Number MC74HC138A
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description 1-of-8 Decoder/Demultiplexer
Datasheet MC74HC138A DatasheetMC74HC138A Datasheet (PDF)

  MC74HC138A   MC74HC138A
1-of-8 Decoder/ Demultiplexer High−Performance Silicon−Gate CMOS MC74HC138A The MC74HC138A is identical in pinout to the LS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The HC138A 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. Features  Output Drive Capability: 10 LSTTL Loads  Outputs Directly Interface to CMOS, NMOS and TTL  Operating Voltage Range: 2.0 to 6.0 V  Low Input Current: 1.0 mA  High Noise Immunity Characteristic of CMOS Devices  In Compliance with the Requirements Defined by JEDEC Standard No. 7 A  .



D892A MC74HC138A MC74HC139A


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