LTC2872IUHF#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2872IUHF#TRPBF is a dual multiprotocol transceiver supporting RS-232, RS-485, and RS-422 standards. It operates on a single 3V to 5.5V supply with a logic interface ranging from 1.7V to VCC. The device integrates two independent ports configurable as four RS-232 or two RS-485 transceivers. It features an internal DC/DC boost converter generating ±6.3V/-7.5V for RS-232 levels. Key electrical parameters include a maximum data rate of 20Mbps for RS-485 and 500kbps for RS-232. It includes integrated 120Ω RS-485 and 5kΩ RS-232 termination resistors, half/full-duplex switching, and loopback mode.

Drivers, Receivers, Transceivers Feature Summary

• Dual pin-configurable transceiver ports supporting RS-232, RS-485, and RS-422 protocols
• Integrated DC/DC boost converter eliminates external supplies for RS-232 operation
• Software-selectable integrated termination resistors for RS-485 and RS-232 interfaces
• Logic loopback mode for diagnostic self-testing and debugging

Drivers, Receivers, Transceivers Applications

• Point-of-Sale Terminals
• Cable Repeaters
• Protocol Translators
• PROFIBUS-DP Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging rather than tube. Confirm the temperature grade 'I' corresponds to the industrial range of -40°C to 85°C. Ensure the component matches the 38-lead QFN package dimensions. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring flexible interface reconfiguration between RS-232 and RS-485 without external relays. It is suitable for applications needing high ESD protection on line I/O pins. Consider the integrated termination resistors to reduce board space. Verify that the required data rates do not exceed 20Mbps for differential or 500kbps for single-ended signaling.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC287x family of multiprotocol transceivers. It shares architectural similarities with the LTC2870 and LTC2871 but offers dual independent ports compared to the single port in those variants. The IUHF#TRPBF designation specifies the industrial temperature range and tape-and-reel packaging format for automated assembly.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitutes include LTC2870IUHF#TRPBF and LTC2871IUHF#TRPBF. Note that these are single-port devices, whereas the LTC2872 provides dual ports. Verify pin compatibility and functional equivalence before substitution.