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54ACT258F Arkusz danych(PDF) 1 Page - National Semiconductor (TI) |
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54ACT258F Arkusz danych(HTML) 1 Page - National Semiconductor (TI) |
1 / 8 page 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 out- puts 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. Features n ICC and IOZ reduced by 50% n Multiplexer expansion by tying outputs together n Inverting TRI-STATE outputs n Outputs source/sink 24 mA n ’ACT258 has TTL-compatible inputs n Standard Military Drawing (SMD) — ’ACT258: 5962-88704 — ’AC258: 5962-91604 Logic Symbols Pin Names Description S Common Data Select Input OE TRI-STATE Output Enable Input I 0a–I0d Data Inputs from Source 0 I 1a–I1d Data Inputs from Source 1 Z a–Zd TRI-STATE Inverting Data Outputs TRI-STATE® is a registered trademark of National Semiconductor Corporation. FACT® is a registered trademark of Fairchild Semiconductor Corporation. DS100287-1 IEEE/IEC DS100287-2 August 1998 © 1998 National Semiconductor Corporation DS100287 www.national.com |
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