ST485A集成电路（IC）的驱动器接收器收发器规格书PDF中文资料

ST485A属于集成电路（IC）的驱动器接收器收发器。由意法半导体集团制造生产的ST485A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。

描述 Description

The ST485A is a low power, high speed transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply.

General features

■ Low supply current: 5mA max

■ High data rate > 30Mbps

■ Designed for RS 485 interface applications

■ -7 to 12 common mode input voltage range

■ Driver maintains high impedance in 3-state or with the power off

■ 70mV typical input hysteresis

■ Operate from single 5 supply

■ ±4kV ESD protection

■ Current limiting and thermal shutdown for driver overload protection

■ Latch-up free up to 500mA