CAN transceiver for 3.3V buses – what the 1 Mbps and 120 mV hysteresis buy you
It handles the bus arbitration, error signaling, and differential drive for one CAN node, with 120 mV of receiver hysteresis to reject noise on the bus lines.
Supply voltage and the 5V tolerance question
The 1 Mbps data rate is standard for high-speed CAN 2.0B, and the 120 mV hysteresis cleans up ringing on long bus stubs better than older 100 mV designs.
For dual-sourcing, the base part number TCAN334 family includes several package and tape options – the DR suffix is the 8-SOIC in Tape & Reel.