The MC74AC257/74ACT257 is a quad 2−input multiplexer with 3−state outputs. It selects four bits of data from two sources under control of a Common Data Select input. When the Select input is LOW, the I0x inputs are selected and when Select is HIGH, t.

MC74ACT251

MC74ACT253

MC74ACT256

MC74ACT258

MC74ACT259

MC74ACT20

MC74ACT240

MC74ACT241

MC74ACT244

MC74ACT245

MC74ACT273

MC74ACT299

MC74ACT00