74F158A
16PIN DIP - High-speed quad 2-input multiplexer (often shortened to "mux") in the 7400 series of TTL (Transistor-Transistor Logic) integrated circuits
FROG24GK
16PIN DIP - High-speed quad 2-input multiplexer (often shortened to "mux") in the 7400 series of TTL (Transistor-Transistor Logic) integrated circuits