TJA1042 High-Speed CAN Transceivers NXP Semiconductors TJA1042 High-Speed Controller Area Network (CAN) Transceivers with Standby Mode interface between a CAN protocol controller and a physical two-wire CAN bus. Designed for high-speed CAN applications in the automotive industry, the transceivers provide the differential transmit/receive capability to a microcontroller utilizing a CAN protocol controller. TJA1042 components deliver exemplary passive behavior to the CAN bus when the supply voltage is off and features a very low-current standby mode with bus wake-up capability.