ST485ECDR集成电路（IC）的驱动器接收器收发器规格书PDF中文资料

ST485ECDR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ST485ECDR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 ST485E is a low power transceiver for RS-485 and RS-422 communication. Each driver output and receiver input is protected against ±15 kV electrostatic discharge (H.B.M.) (ESD) shocks, without latch-up. These parts contain one driver and one receiver in half duplex configuration.

特性 Features

■ Low quiescent current: 300 µA

■ Designed for RS-485 interface application

■ -7 V to 12 V common mode input voltage range

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

■ 70 mV typical input hysteresis

■ 30 ns propagation delay, 5 ns skew

■ Operates from a single 5 V supply

■ Current limiting and thermal shutdown for driver overload protection

■ ESD protection:

– ±15 kV (H.B.M.)

– ±8 kV (IEC-1000-4-2 contact discharge)

■ Allows up to 256 transceivers on the bus