MC74LCX138 Datasheet, ON Semiconductor

three Enable inputs, two active−LOW (E1, E2) and one active−HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW, and E3 is HIGH. This multiple enabled function a.

The MC74LCX138 high−speed 3−to−8 decoder/demultiplexer accepts three binary weighted inputs (A0, A1, A2) and, when enab.