SN74ALS645ANS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS645ANS is an octal bus transceiver from the Texas Instruments ALS logic family, housed in a 20-pin SOIC package. It features three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device supports TTL input and output levels, with a propagation delay of 10 ns. It provides a low-level output current of 24 mA and a high-level output current of -15 mA. The component functions at temperatures between 0°C and +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal bus transceiver architecture with three-state outputs for efficient data direction control
• Compatible with TTL logic levels for both inputs and outputs
• High-speed performance with 10 ns propagation delay

Buffers, Drivers, Receivers, Transceivers Applications

• Data bus driving applications requiring high-speed transfer
• Memory module interfacing in computer systems
• Control signal routing in industrial automation equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'ANS' against official Texas Instruments documentation to confirm the exact package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when TTL-compatible interfaces are required alongside high-speed data throughput. The ALS series offers a balance of speed and power consumption suitable for general-purpose digital systems where 3-state isolation is necessary for bus sharing.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS645A family of octal bus transceivers. It serves as a bidirectional data path controller, allowing data flow between two buses while maintaining electrical isolation through its three-state output capability.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALS645A-1N is a documented equivalent variant within the same product family offering identical functional specifications.