DESCRIPTION

The LTC®2873 is a robust pin-configurable multiprotocol transceiver that supports RS232, RS485, and RS422 protocols while operating on a single 3V to 5.5V supply. The LTC2873 can be configured as a half-duplex RS485 transceiver or as an RS232 transceiver using the same two bus pins.

FEATURES

■ One RS485 or One RS232 Transceiver

■ 3V to 5.5V Supply Voltage

■ Up to 20Mbps RS485

■ Slew-Controlled RS232 Operation:

■ Selectable 1Mbps or 250kbps

■ Automatic Selection of Integrated RS485 (120Ω)

and RS232 (5kΩ) Termination Resistors

■ High ESD: ±26kV HBM

■ Logic Loopback Mode

■ 1.7V to 5.5V Logic Interface

■ Supports Up to 256 RS485 Nodes

■ RS485 Receiver Failsafe Eliminates UART Lockup

■ H-Grade Available (–40°C to 125°C)

■ Available in 24-Pin 4mm × 5mm QFN Package

APPLICATIONS

■ Software Selectable RS232/RS485/RS422 Interface

■ Industrial Sensors and Actuators

■ Alarm Systems

■ Traffic Control and Monitoring

■ Highway Signs and Jumbo Displays

LTC2854属于集成电路（IC） > 驱动器，接收器，收发器。亚德诺半导体技术有限公司制造生产的LTC2854驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。