Overview
HD74HC138 is listed in the Logic IC category. Available datasheets include documents from Hitachi Semiconductor, Renesas Technology Corp.
Summary
3-to-8-line Decoder/Demultiplexer
Description
The HD74HC138 has 3 binary select inputs (A, B and C). If the device is enabled these inputs determine which one of the eight normally high outputs will go low. Two active low and one active high enables (G1, G2A and G2B) are provided to ease the cascading of decoders.
Source title
HD74HC138 Datasheet(PDF) - Hitachi Semiconductor