HD74AC538 Datasheet (Hitachi Semiconductor) - 1-of-8 Decoder with 3-State Output

HD74AC538, 1-of-8 Decoder with 3-State Output

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) determines whether the outputs are active LOW or active HIGH.

A HIGH signal on either of the active LOW output Enable (OE

HD74AC538 Features

* Output Polarity Control Data Demultiplexing Capability Multiple Enables for Expansion Outputs Source/Sink 24 mA HD74AC538 Pin Arrangement O2 1 O1 2 O0 3 OE1 4 OE2 5 A0 6 A1 7 O5 8 O6 9 GND 10 (Top view) 20 VCC 19 O3 18 O4 17 A2 16 E1 15 E2 14 E3 13 E4 12 P