74LVT543DB,112

Buffers, Drivers, Receivers, Transceivers Overview

The 74LVT543DB,112 is a BiCMOS octal latched transceiver designed for 3.3V VCC operation. It combines 74LVT245 and 74LVT373 functions within a single device, featuring back-to-back registers for data storage in either direction. The component provides separate controls for data flow across A and B ports, ensuring independent management of transfer paths. It supports TTL input and output switching levels and allows interface capability to systems operating at 5V supply voltages.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Combines 74LVT245 and 74LVT373 type functions in one device
• Back-to-back registers for temporary data storage
• Separate controls for data flow in each direction
• Bus-hold data inputs eliminate the need for external pull-up resistors

Buffers, Drivers, Receivers, Transceivers Applications

• Temporary storage of data flowing in either direction
• Interface capability to systems at 5V supply
• Live insertion/extraction permitted applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet ordering information table. Confirm that the SSOP-24 (SOT340-1) designation matches the required footprint. Ensure compatibility with the specified -40°C to +85°C temperature range. Check absolute maximum ratings before integration to prevent permanent damage from exceeding voltage or current limits.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when dual-direction data buffering with latching is required. It is suitable for designs needing bus-hold functionality without external resistors. Verify that the 3.3V supply requirement aligns with the system architecture. Consider the 64mA sink and 32mA source output capabilities for load matching requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74LVT logic family, characterized by high-speed performance and low power consumption. It is manufactured by NXP USA Inc. under the Philips Semiconductors lineage. The device utilizes BiCMOS technology to achieve its specified electrical characteristics and operational speeds within the standard industrial temperature range.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH652PW

Buffers, Drivers, Receivers, Transceivers FAQ

Does the 74LVT543 support live insertion?

Yes, the device permits live insertion and extraction.

What is the function of the bus-hold inputs?

Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs.