54AC258

www.DataSheet4U.com 54AC258 54ACT258 Quad 2-Input Multiplexer with TRI-STATE Outputs August 1998 54AC258 54ACT258 Quad 2-Input Multiplexer with TRI-STATE ® Outputs General Description The ’AC/’ACT258 is a quad 2-input multiplexer with TRI-STATE outputs. Four bits of data from two sources can be selected using a common data select input. The four outputs present the selected data in the complement (inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems. n n n n n Multiplexer expansion by tying outputs together Inverting TRI-STATE outputs Outputs source/sink 24 mA ’ACT258 has TTL-compatible inputs Standard Military Drawing (SMD) — ’ACT258: 5962-88704 — ’AC258: 5962-91604 Features n ICC and IOZ reduced by 50% Logic Symbols IEEE/IEC DS100287-1 DS100287-2 Pin Names S OE I0a–I0d I1a–I1d Za–Zd Description Common Data Select Input TRI-STATE Output Enable Input Data Inputs from Source 0 Data Inputs from Source 1 TRI-STATE Inverting Data Outputs TRI-STATE ® is a registered trademark of National Semiconductor Corporation. FACT ® is a registered trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100287 www.national.com Connection Diagrams Pin Assignment for DIP and Flatpak Functional Description The ’AC/’ACT258 is a quad 2-input multiplexer with TRI-STATE outputs. It selects four bits of data ...