SN65HVD256集成电路（IC）的驱动器接收器收发器规格书PDF中文资料

SN65HVD256属于集成电路（IC）的驱动器接收器收发器。由德州仪器制造生产的SN65HVD256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。

1 Features

1• Meets the Requirements of ISO11898-2

• Turbo CAN:

– Short and Symmetrical Propagation Delay

Times and Fast Loop Times for Enhanced

Timing Margin

– Higher Data Rates in CAN Networks

• I/O Voltage Range Supports 3.3-V and 5-V MCUs

• Ideal Passive Behavior When Unpowered

– Bus and Logic Pins are High Impedance (No

Load)

– Power Up and Power Down With Glitch-Free

Operation on Bus

• Protection Features

– HBM ESD Protection Exceeds ±12 kV

– Bus Fault Protection –27 V to 40 V

– Undervoltage Protection on Supply Pins

– Driver Dominant Time Out (TXD DTO)

– SN65HVD257: Receiver-Dominant Time Out

(RXD DTO)

– SN65HVD257: FAULT Output Pin

– Thermal Shutdown Protection

• Characterized for –40°C to 125°C Operation

2 Applications

• 1-Mbps Operation in Highly Loaded CAN

Networks Down to 10-kbps Networks Using TXD

DTO

• Industrial Automation, Control, Sensors, and Drive

Systems

• Building, Security, and Climate Control

Automation

• Telecom Base Station Status and Control

• SN65HVD257: Functional Safety With Redundant

and Multitopology CAN networks

• CAN Bus Standards Such as CANopen,

DeviceNet, NMEA2000, ARNIC825, ISO11783,

and CANaerospace

3 Description

This CAN transceiver meets the ISO1189-2 High

Speed CAN (Controller Area Network) Physical Layer standard. It is designed for data rates in excess of

1 Mbps for CAN in short networks, and enhanced

timing margin and higher data rates in long and

highly-loaded networks. The device provides many

protection features to enhance device and CANnetwork

robustness. The SN65HVD257 device adds

additional features, allowing for easy design of

redundant and multitopology networks with fault

indication for higher levels of functional safety in the

CAN system.