CAN Transceiver with Fast Loop Times for Highly Loaded Networks and Features for Functional Safety

CAN Transceiver with Fast Loop Times for Highly Loaded Networks and Features for Functional Safety - SN65HVD257

Recommended alternative parts

  • ISO1050  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Combines Isolation and CAN, but has different feature set than the SN65HVD257


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 CAN-network 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.


  • 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
    • 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

View more

Parametrics Compare all products in CAN/LIN

Number of Channels (#)
Supply Voltage(s) (V)
Bus Fault Voltage (V)
Common Mode Voltage (V)
Signaling Rate (Max) (Mbps)
Low Power Mode
IEC 61000-4-2 Contact (+/- kV)
Operating Temperature Range (C)
Package Group
SN65HVD257 SN65HVD255 SN65HVD256
CAN    CAN    CAN   
1    1    1   
4.5 to 5.5    4.5 to 5.5    4.5 to 5.5   
-27 to 40    -27 to 40    -27 to 40   
-2 to 7    -2 to 7    -2 to 7   
1    1    1   
Silent    Silent    Silent   
12    12    12   
8    8    8   
No    No    No   
-40 to 125    -40 to 125    -40 to 125