Datasheet LTC2871IUHF - Linear Technology — 数据表

Part Number: LTC2871IUHF

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Manufacturer: Linear Technology

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LTC2870/LTC2871 RS232/RS485 Multiprotocol Transceivers with Integrated Termination DESCRIPTION
The LTC®2870/LTC2871 are robust pin-configurable multiprotocol transceivers, supporting RS232, RS485, and RS422 protocols, operating on a single 3V to 5.5V supply.

The LTC2870 can be configured as two RS232 single-ended transceivers or one RS485 differential transceiver on shared I/O lines. 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

Specifications:

  • Device Type: Transceiver
  • Number of Drivers: 2
  • Number of Pins: 38
  • Operating Temperature Range: -40°C to +85°C
  • Package / Case: QFN
  • Pb-Free: Yes
  • Peak Reflow Compatible (260 C): Yes
  • Supply Voltage Range: 3 V to 5.5 V

RoHS: Yes