General description
The TJA1042 high-speed CAN transceiver provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing the differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
The TJA1042 belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors, offering significant improvements over first- and second-generation devices such as the TJA1040. It offers improved ElectroMagnetic Compatibility (EMC) and ElectroStatic Discharge (ESD) performance, and also features:

• Ideal passive behavior to the CAN bus when the supply voltage is off
• A very low-current Standby mode with bus wake-up capability
• TJA1042T/3 and TJA1042TK/3 can be interfaced directly to microcontrollers with
   supply voltages from 3 V to 5 V

The TJA1042 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.
These features make the TJA1042 an excellent choice for all types of HS-CAN networks, in nodes that require a low-power mode with wake-up capability via the CAN bus.

Features and benefits
General
■ ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
■ Timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase
■ Suitable for 12 V and 24 V systems
■ Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
■ VIO input on TJA1042T/3 and TJA1042TK/3 allows for direct interfacing with 3 V to 5 V
   microcontrollers
■ SPLIT voltage output on TJA1042T for stabilizing the recessive bus level
■ Available in SO8 package and leadless HVSON8 package (3.0 mm  3.0 mm) with
   improved Automated Optical Inspection (AOI) capability
■ Dark green product (halogen free and Restriction of Hazardous Substances (RoHS)
   compliant)
■ AEC-Q100 qualified

Predictable and fail-safe behavior
■ Very low-current Standby mode with host and bus wake-up capability
■ Functional behavior predictable under all supply conditions
■ Transceiver disengages from the bus when not powered up (zero load)
■ Transmit Data (TXD) dominant time-out function
■ Bus-dominant time-out function in Standby mode
■ Undervoltage detection on pins VCC and VIO

Protections
■ High ESD handling capability on the bus pins (8 kV)
■ High voltage robustness on CAN pins (58 V)
■ Bus pins protected against transients in automotive environments
■ Thermally protected