ST3485EI数据手册集成电路（IC）的驱动器接收器收发器规格书PDF

描述 Description

The ST3485EB/EC/EI/EIY device is ±15 kV ESD protected, 3.3 V low power transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration.

The ST3485E device transmits and receives at a guaranteed data rate of at least 12 Mbps.

All transmitter outputs and receiver inputs are protected to ±15 kV IEC 61000-4-2 air discharge.

The driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high impedance state.

特性 Features

• ESD protection
•±15 kV IEC 61000-4-2 air discharge
•±8 kV IEC 61000-4-2 contact discharge
• Operate from a single 3.3 V supply - no charge pump required
• Interoperable with 5 V logic
• 1 µA low current shutdown mode max.
• Guaranteed 12 Mbps data rate
• -7 to 12 V common mode input voltage range
• Half duplex versions available
• Industry standard 75176 pinout
• Current limiting and thermal shutdown for driver overload protection
• Guaranteed high receiver output state for floating inputs with no signal present
• Allow up to 64 transceivers on the bus
• Available in SO8 package
• Automotive grade (ST3485EIY)

简介

ST3485EI属于集成电路（IC）的驱动器接收器收发器。由制造生产的ST3485EI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。