Description

Single-Bus RS485/RS232 Multiprotocol Transceiver with Switchable Termination 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