LTC2873CUFD#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2873CUFD#TRPBF is a single-bus RS485/RS232 multiprotocol transceiver in a 24-lead 4mm × 5mm QFN package. It operates on a 3V to 5.5V supply with a 1.7V logic interface. The device supports up to 20Mbps for RS485 and selectable 250kbps or 1Mbps for RS232. It features an integrated DC/DC boost converter, switchable termination resistors (120Ω for RS485, 5kΩ for RS232), and ±26kV HBM ESD protection. Operating temperature range is 0°C to 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Pin-configurable multiprotocol support for RS232, RS485, and RS422 using a single two-pin bus interface.
• Integrated DC/DC boost converter eliminates the need for external negative voltage supplies.
• Software-selectable automatic termination resistors remove the requirement for external components or control relays.

Drivers, Receivers, Transceivers Applications

• Industrial sensors and actuators
• Alarm systems
• Traffic control and monitoring
• Highway signs and jumbo displays

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing this component. Confirm the CUFD designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the ordering information matches the required lead-free finish and plastic QFN package dimensions for your assembly process.

Drivers, Receivers, Transceivers Selection Notes

Select this part for applications requiring a single IC to handle both RS232 and RS485 protocols without external switching hardware. Consider the integrated termination and loopback features for simplified board layout and diagnostic testing. Verify that the 3V to 5.5V supply range aligns with the system power architecture.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2873 family of robust pin-configurable multiprotocol transceivers manufactured by Analog Devices Inc. The CUFD variant specifically denotes the commercial temperature grade housed in a compact 24-lead QFN package designed for space-constrained industrial designs.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other parts within the LTC2873 family such as the LTC2873IUFD#TRPBF for extended temperature ranges or the LTC2873HUFD#TRPBF for high-temperature operation. Cross-family replacements require verification of pin compatibility and electrical specifications.