SN74LS243N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS243N is a quadruple bus transceiver designed for asynchronous two-way communications between data buses. It features push-pull, three-state outputs capable of driving terminated lines. The device operates with TTL input and output types, utilizing PNP inputs to reduce DC loading. It includes hysteresis at the inputs, typically 400 mV, to improve noise immunity. The component supports an operating voltage range of 4.75V to 5.25V and functions within a temperature range of 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Quadruple bus transceiver architecture enabling asynchronous two-way communication between data buses
• Push-pull, three-state outputs designed to drive terminated transmission lines effectively
• PNP input structure reduces DC loading on preceding circuitry while providing typical 400 mV input hysteresis

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous two-way data bus communication systems
• Driving terminated transmission lines in digital circuits
• Bus interface applications requiring high-speed signal transfer

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer datasheet revision and specific ordering suffixes to ensure compatibility with your system requirements. Confirm that the package type matches your PCB footprint design. Check for any proprietary information restrictions or limited availability details provided by Texas Instruments or authorized suppliers before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when asynchronous bidirectional data transfer is required between buses. Ensure the system voltage remains within the specified 4.75V to 5.25V range. Consider the propagation delay characteristics if timing constraints are critical. Verify that the thermal environment stays within the 0°C to 70°C operational limit for reliable performance.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74LS series of logic integrated circuits. It is categorized under buffers, drivers, receivers, and transceivers. The SN74LS243N provides a solution for managing data flow across multiple lines in digital systems, offering robust output capabilities and noise immunity through its specific input design.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official substitution guides for compatible quad bus transceivers from the same logic family. Verify pinout compatibility and electrical specifications before replacing the component. Ensure that any substitute part meets the same voltage and temperature operating ranges.