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LTC2871 Datasheet

LTC2871 Datasheet

RS232/RS485 Multiprotocol Transceivers with Integrated Termination
Part No.: LTC2871
Page: 42 Pages
Size: 969 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-12-14 14:51:23
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LTC2871 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC2871CFE#PBF Tube 50 LTC2871FE 1 38 0°C ~ 70°C 38-Lead Plastic TSSOP  
LTC2871CFE#TRPBF Reel 2000 LTC2871FE 1 38 0°C ~ 70°C 38-Lead Plastic TSSOP  
LTC2871CFE#TRMPBF Reel 500 LTC2871FE 1 38 0°C ~ 70°C 38-Lead Plastic TSSOP  
LTC2871IFE#PBF Tube 50 LTC2871FE 1 38 -40°C ~ 85°C 38-Lead Plastic TSSOP  
LTC2871IFE#TRPBF Reel 2000 LTC2871FE 1 38 -40°C ~ 85°C 38-Lead Plastic TSSOP  
LTC2871IFE#TRMPBF Reel 500 LTC2871FE 1 38 -40°C ~ 85°C 38-Lead Plastic TSSOP  
LTC2871CUHF#PBF Tube 52 2871 1 38 0°C ~ 70°C 38-Lead (5mm × 7mm) Plastic QFN  
LTC2871CUHF#TRPBF Reel 2500 2871 1 38 0°C ~ 70°C 38-Lead (5mm × 7mm) Plastic QFN  
LTC2871CUHF#TRMPBF Reel 500 2871 1 38 0°C ~ 70°C 38-Lead (5mm × 7mm) Plastic QFN  
LTC2871IUHF#PBF Tube 52 2871 1 38 -40°C ~ 85°C 38-Lead (5mm × 7mm) Plastic QFN  
LTC2871IUHF#TRPBF Reel 2500 2871 1 38 -40°C ~ 85°C 38-Lead (5mm × 7mm) Plastic QFN  
LTC2871IUHF#TRMPBF Reel 500 2871 1 38 -40°C ~ 85°C 38-Lead (5mm × 7mm) Plastic QFN  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC2871 Datasheet(PDF)

LTC2871 Datasheet(Picture)

LTC2871 Features

  • One RS485 and Two RS232 Transceivers
  • 3V to 5.5V Supply Voltage
  • 20Mbps RS485 and 500kbps RS232
  • Automatic Selection of Integrated RS485 (120Ω) and RS232 (5kΩ) Termination Resistors
  • Half-/Full-Duplex RS485 Switching
  • High ESD: ±16kV (LTC2871)
  • Logic Loopback Mode
  • 1.7V to 5.5V Logic Interface
  • Supports Up to 256 RS485 Nodes
  • RS485 Receiver Failsafe Eliminates UART Lockup
  • Available in 38-Pin 5mm × 7mm QFN and TSSOP (LTC2871)

LTC2871 Applications

  • Flexible RS232/RS485/RS422 Interface
  • Software Selectable Multiprotocol Interface Ports
  • Point-of-Sale Terminals
  • Cable Repeaters
  • Protocol Translators

LTC2871 Description

The LTC2871 are robust pin-configurable multiprotocol transceivers, supporting RS232, RS485, and RS422 protocols, operating on a single 3V to 5.5V supply. The LTC2871 offers independent control of two RS232 transceivers and one RS485 transceiver, each on dedicated I/O lines.

Pin-controlled integrated termination resistors allow for easy interface reconfiguration, eliminating external resistors and control relays. Half-duplex switches allow four-wire and two-wire RS485 configurations. Loopback mode steers the driver inputs to the receiver outputs for diagnostic self-test.The RS485 receivers support up to 256 nodes per bus, and feature full failsafe operation for floating, shorted or terminated inputs.

An integrated DC/DC boost converter uses a tiny 2mm × 1.6mm inductor and one capacitor, eliminating the need for multiple supplies for driving RS232 levels.

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