16-Channel Dual Multiplexer and Decoder, 5V, Commercial, 16-Pin DIP
Decoder/Driver, LS Series, Inverted Output, TTL, PDIP16
16-Channel Dual Multiplexer, 0-70°C, 5V, DIP16 Package
Quad 2-INPUT Nand Buffers (oc)
74LS138PC
74LS138DC