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54ACT245F Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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54ACT245F Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 8 page  54AC245 • 54ACT245 Octal Bidirectional Transceiver with TRI-STATE® Inputs/Outputs General Description The ’AC/’ACT245 contains eight non-inverting bidirectional buffers with TRI-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidi- rectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition. Features n ICC and IOZ reduced by 50% n Noninverting buffers n Bidirectional data path n A and B outputs source/sink 24 mA n ’ACT245 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) — ’AC245: 5962-87758 — ’ACT245: 5962-87663 Logic Symbols Pin Description Names OE Output Enable Input T/R Transmit/Receive Input A 0–A7 Side A TRI-STATE Inputs or TRI-STATE Outputs B 0–B7 Side B TRI-STATE Inputs or TRI-STATE Outputs TRI-STATE® is a registered trademark of National Semiconductor Corporation. FACT® is a registered trademark of Fairchild Semiconductor Corporation. DS100283-1 IEEE/IEC DS100283-2 August 1998 © 1998 National Semiconductor Corporation DS100283 www.national.com |
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