TEXAS INSTRUMENTS
线路接收器, RS485, 3V-3.6电源, SOIC-8
INTERSIL
收发器, RS232, 2驱动器, 4.5V-5.5电源, DIP-16
收发器, RS232, 2驱动器, 3V-5.5电源, DIP-16
收发器, RS232 驱动器, 3V-5.5电源, SSOP-16