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)

簡介

ST3485EI屬于集成電路（IC）的驅(qū)動器接收器收發(fā)器。由制造生產(chǎn)的ST3485EI驅(qū)動器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長電纜或印制線進行通信。確切的功能會因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對于通信用途可能并非絕對必要，但對于可能的使用環(huán)境卻是明智之選。