74ABT245CSC

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74ABT245CSC is an octal bidirectional transceiver featuring three-state outputs, housed in a 20-lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device provides a current sink capability of 64 mA and a source capability of 32 mA on both A and B ports. Propagation delays are specified at 1.0 ns minimum and 3.6 ns maximum under standard conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bidirectional non-inverting buffers with three-state outputs for bus-oriented applications
• High output drive capability with 64 mA sinking and 32 mA sourcing on both ports
• Glitch-free high impedance bus loading during power-up and power-down cycles
• Non-destructive hot insertion capability with disable time less than enable time

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented data transmission systems
• Bidirectional data flow control between microprocessors and memory
• High-speed digital signal routing in computing environments

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code suffix against manufacturer documentation to confirm package type and tape/reel availability. Confirm that the component meets required environmental standards and logic family specifications before integration into final designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high-speed bidirectional data transfer with significant drive strength. Ensure the design accommodates the specified propagation delay limits and output current capabilities while maintaining appropriate load capacitance constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ABT logic family, combining BiCMOS technology for high speed and low power dissipation. It serves as a standard interface solution for transferring data across system buses where direction control and high impedance states are critical for preventing bus contention.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other manufacturers' 74ABT245 variants in SOIC-20 packages. Verify pin compatibility and electrical characteristics match the original specifications when considering alternative sources.

Buffers, Drivers, Receivers, Transceivers FAQ

What determines the direction of data flow?

The Transmit/Receive (T/R) input determines direction; HIGH enables A to B, LOW enables B to A.

How does the Output Enable input function?

When HIGH, it disables both ports by placing them in a HIGH Z state.