LTC2870IUFD#PBF - 

制造商：

LINEAR TECHNOLOGY LINEAR TECHNOLOGY

制造商产品编号：

LTC2870IUFD#PBF

仓库库存编号：

2294438

技术数据表：

(EN)

The LTC2870IUFD#PBF is a RS232/RS485 Multi-protocol Transceiver with integrated termination operating on a single 3 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. 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 fail-safe operation for floating, shorted or terminated inputs. An integrated DC/DC boost converter uses a tiny 2mm x 1.6mm inductor and one capacitor, eliminating the need for multiple supplies for driving RS232 levels.

• One RS485 and two RS232 transceivers
• 20Mbps RS485 and 500kbps RS232
• Automatic selection of integrated RS485 (120R) and RS232 (5kR) termination resistors
• Half/full-duplex RS485 switching
• High ESD (±26kV)
• Logic loopback mode
• 1.7 to 5.5V Logic interface
• Supports up to 256 RS485 nodes
• RS485 receiver fail-safe eliminates UART lockup
• H-grade available (-40 to 125°C)