Datasheet Summary
UNISONIC TECHNOLOGIES CO., LTD U74HC138
3-TO-8 LINE DECODERS / DEMULTIPLEXERS
- DESCRIPTION
The U74HC138 decodes a three-bit Address to 1-of-8 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 acplished 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
- Operate from 2.0V ~ 6.0V
- Low Input Current: 100nA Max
- Low Quiescent Current: 8μA Max
- Typ tPD=15ns
- Output Drive:4mA @ 5V
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