TJA1051 High-Speed CAN Transceivers NXP Semiconductors TJA1051 High-Speed CAN Transceivers offer an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The TJA1051 is intended for high-speed CAN applications in the automotive industry. The device provides differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.