ST1480AB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 ST1480Ax 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 ST1480Ax transmits and receives at a guaranteed data rate of at least 12 Mbps.

All transmitter outputs and receiver inputs are protected to ±15 kV using Human Body Model.

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.

The ST1480Ax input has a true fail-safe feature that guarantees a logic high output if both inputs are open circuit, shorted together or in the presence of a termination with no signal on the bus.

特性 Features

• ESD protection
•±15 kV human body model
•±8 kV IEC 1000-4-2 contact discharge
• Operates 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 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, shorted or terminated inputs with no signal present
• Allows up to 64 transceivers on the bus

简介

ST1480AB属于集成电路（IC）的驱动器接收器收发器。由制造生产的ST1480AB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。