BUY 74F139 https://www.utsource.net/itm/p/1140900.html
Dual 1-of-4 Decoder/Demultiplexer
Description: Dual 2-Line to 4-Line Decoders/Demultiplexers Features: Low power Schottky TTL (LSTTL) Inputs accept voltages to 5.5V Outputs source/sink 24mA Outputs compatible with TTL outputs Outputs directly interface to CMOS, NMOS, and TTL Outputs short circuit protected Inputs and outputs fully buffered Inputs and outputs on opposite sides of package Applications: Data and address decoding Data demultiplexing Memory decoding Bus-oriented systems Bus transceivers Bus arbitration Priority encoding (For reference only)