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54ABT245W-QML Arkusz danych(PDF) 1 Page - National Semiconductor (TI) |
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54ABT245W-QML Arkusz danych(HTML) 1 Page - National Semiconductor (TI) |
1 / 10 page 54ABT245 Octal Bidirectional Transceiver with TRI-STATE® Outputs General Description The ’ABT245 contains eight non-inverting bidirectional buff- ers with TRI-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 48 mA on both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional trans- ceiver. 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 Bidirectional non-inverting buffers n A and B output sink capability of 48 mA, source capability of 24 mA n Guaranteed output skew n Guaranteed multiple output switching specifications n Output switching specified for both 50 pF and 250 pF loads n Guaranteed simultaneous switching, noise level and dynamic threshold performance n Guaranteed latchup protection n High impedance glitch-free bus loading during entire power up and power down cycle n Non-destructive hot insertion capability n Disable time is less than enable time to avoid bus contention n Standard Microcircuit Drawing (SMD) 5962-9214801 Ordering Code: Military Package Package Description Number 54ABT245J-QML J20A 20-Lead Ceramic Dual-In-Line 54ABT245W-QML W20A 20-Lead Cerpak 54ABT245E-QML E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Logic Symbol TRI-STATE® is a registered trademark of National Semiconductor Corporation. DS100204-1 July 1998 © 1998 National Semiconductor Corporation DS100204 www.national.com |
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