HD74AC538

Features:

·  Output Polarity Control
·  Data Demultiplexing Capability
·  Multiple Enables for Expansion
·  Outputs Source/Sink 24 mA


Pinout




Specifications

Item	Symbol	Max	Unit	Condition
Maximum quiescent supply current	ICC	80	A	VIN = VCC or ground, VCC = 5.5 V, Ta = Worst case
Maximum quiescent supply current	ICC	8.0	A	VIN = VCC or ground, VCC = 5.5 V, Ta = 25°C

Description

The HD74AC538 decoder/demultiplexer accepts three Address (A0 to A2) input signal and decodes them to select one of eight mutually exclusive outputs. A polarity control input (P) of HD74AC538  determines whether the outputs are active LOW or active HIGH. A HIGH signal on either of the active LOW output Enable (OE) inputs forces all outputs to the high impedance state. Two active HIGH and two active LOW input enables are available for easy expansion to 1-of-32 decoding with four packages, or for data demultiplexing to 1-of-8 or 1-of-16 destinations.