SN74BCT543NT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74BCT543NT is an octal registered transceiver utilizing state-of-the-art BiCMOS design to significantly reduce quiescent current. It features two sets of D-type latches for temporary data storage and provides three-state true outputs. The device supports independent control of data flow direction through separate latch-enable and output-enable inputs for each register. It operates within a supply voltage range of 4.5 V to 5.5 V and is characterized for operation from 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Back-to-back registers provide temporary storage for data flowing in either direction
• Separate latch-enable and output-enable inputs permit independent control of data flow
• ESD protection exceeds 2000 V per MIL-STD-883C, Method 3015

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus applications requiring temporary storage
• Systems needing independent control of bidirectional data flow
• Industrial environments operating between 0°C and 70°C

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and temperature rating against project requirements. Confirm that the SN74BCT543NT variant aligns with the commercial temperature range specifications. Ensure compatibility with existing board layouts and power supply constraints before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer with internal storage is required. The BiCMOS technology offers low power consumption compared to standard TTL. Verify that the 4.5 V to 5.5 V supply voltage range matches the system design. Consider the 24-pin DIP package dimensions for mechanical fit.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments BCT logic family, which combines BiCMOS speed with CMOS low power. The SN74BCT543NT specifically denotes the commercial grade version housed in a plastic dual-in-line package. It serves as a registered transceiver solution for managing complex data paths in digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74BCT543DW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the SN74BCT543NT handle bidirectional data flow?

It uses separate enable inputs (CEAB/CEBA) to control the direction of data transfer between the A and B ports.

What is the function of the latch-enable inputs?

The latch-enable inputs (LEAB/LEBA) store data into the internal D-type latches upon a high-to-low transition, isolating the outputs from input changes.