LTC2872
Info: : PRODUCTION
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LTC2872

RS232/RS485 Dual Multiprotocol Transceiver with Integrated Termination

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $7.66
Features
  • Four RS232 and Two RS485 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
  • Logic Loopback Mode
  • High ESD: ±16kV on Line I/O
  • 1.7V to 5.5V Logic Interface
  • Supports Up to 256 RS485 Nodes
  • RS485 Receiver Full Failsafe Eliminates UART Lockup
  • Available in 38-Pin 5mm × 7mm QFN Package
Additional Details
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The LTC2872 is a robust pin-configurable transceiver that supports RS232, RS485, and RS422 standards while operating on a single 3V to 5.5V supply. The LTC2872 can be configured as four RS232 single-ended transceivers or two RS485 differential transceivers, or combinations of both, on shared 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 small inductor and one capacitor, eliminating the need for multiple supplies for driving RS232 levels.

Applications

  • Flexible RS232/RS485/RS422 Interface
  • Software Selectable Multiprotocol Interface Ports
  • Point-of-Sale Terminals
  • Cable Repeaters
  • Protocol Translators
  • PROFIBUS-DP Networks
Part Models 4
1ku List Price Starting From $7.66

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2872CUHF#PBF
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LTC2872CUHF#TRPBF
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LTC2872IUHF#PBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1851A

LTC2872 RS232/RS485 Dual Multiprotocol Transceiver with Integrated Termination

Tools & Simulations

Tools & Simulations 1

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