INTERSIL
芯片, 发送/接收器, RS232, RS422, RS485, QFN-40
收发器, RS232/RS485, 2驱动器, 4.5V至5.5V, QFN-40
芯片, 发送/接收器, RS232, RS485, 5.5V, SSOP-20
MAXIM INTEGRATED PRODUCTS
收发器, RS232, 4.5V-5.25V电源, 5驱动器, WSOIC-28