74ACT257 Datasheet | Fairchild Semiconductor

74AC257 - 74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs November 1988 Revised November 1999 74AC257 - 74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs General Description The AC/ACT257 is a quad 2-input multiplexer with 3STATE outputs. Four bits of data from two sources can be selected using a mon Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the mon Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems. Features s ICC and IOZ reduced by 50% s Multiplexer expansion by tying outputs together s...