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  • TJA1043T/1J

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TJA1043T/1J Overview

For security on TJA1043, go to Secure CAN TJA1153.The TJA1043 high-speed CAN transceiver provides an interface between a ControllerArea Network (CAN) protocol controller and the physical two-wire CAN bus. Thetransceiver is designed for high-speed CAN applications in the automotive industry,providing differential transmit and receive capability to (a microcontroller with) a CANprotocol controller.The TJA1043 belongs to the third generation of high-speed CAN transceivers from NXPSemiconductors, offering significant improvements over first- and second-generationdevices such as the TJA1041A. It offers improved ElectroMagnetic Compatibility (EMC)and ElectroMagnetic Discharge (ESD) performance, very low power consumption, andpassive behavior when the supply voltage is turned off. Advanced features include:Low-power management controls the power supply throughout the node whilesupporting local and remote wake-up with wake-up source recognitionSeveral protection and diagnostic functions including bus line short-circuit detectionand battery connection detectionCan be interfaced directly to microcontrollers with supply voltages from 3 V to 5 VThe TJA1043 implements the CAN physical layer as defined in the current ISO11898 standard(ISO11898-2:2003, ISO11898-5:2007 and the pending updated version of ISO11898-2:2016).Pending the release of ISO11898-2:2016 including CAN FD and SAE-J2284-4/5, additionaltiming parameters defining loop delay symmetry are specified. This implementationenables reliable communication in the CAN FD fast phase at data rates up to 5Mbit/s.These features make the TJA1043 the ideal choice for high speed CAN networkscontaining nodes that need to be available all times, even when the internal VIO and VCCsupplies are switched off.
TJA1043 Block Diagram


  • Fully ISO 11898-2:2003, ISO 11898-5:2007 compliant
  • Loop delay symmetry timing enables reliable communication at 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)
  • V
  • IO
  • SPLIT voltage output for stabilizing the recessive bus level
  • Listen-only mode for node diagnosis and failure containment
  • Available in SO14 and HVSON14 packages
  • Leadless HVSON14 package (3.0 mm × 4.5 mm) with improved Automated Optical Inspection (AOI) capability
  • AEC-Q100 qualified
  • Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
  • Low-power management
  • Very low current Standby and Sleep modes, with local and remote wake-up
  • Capability to power down the entire node while supporting local, remote and host wake-up
  • Wake-up source recognition
  • Transceiver disengages from the bus (zero load) when V
  • BAT
  • Functional behavior predictable under all supply conditions
  • Protection and diagnosis (detection and signalling)
  • High ESD handling capability on the bus pins
  • Bus pins and V
  • BAT
  • Transmit Data (TXD) dominant time-out function with diagnosis
  • TXD-to-RXD short-circuit handler with diagnosis
  • Thermal protection with diagnosis
  • Under-voltage detection and recovery on pins V
  • CC
  • IO
  • BAT
  • Bus line short-circuit diagnosis
  • Bus dominant clamping diagnosis
  • Cold start diagnosis (first battery connection)
  • Product Longevity Program
  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The TJA1043 is included in the 15-year program.

Product Parameters

  • Recommended Orderable Part Number


  • Low Power Modes

    Sleep Mode,Standby Mode

  • CAN Channels


  • Supply Voltage [Min to Max] (V)

    4.5 to 5.5

  • Voltage on bus pins [Min-Max] (V)

    -58 to 58

  • VESD HBM on bus pins (+/- kV)

    -8 to 8

  • Junction Temperature (Max) (℃)


  • Wake-Up Pin


  • GPIO


  • SPLIT Pin


  • Product Application


  • MCU I/O Interface (V)


  • Data Rate [max] kbps


  • Product Category

    CAN FD / High-Speed CAN

  • Data Rate [min] kbps


  • VESD IEC on bus pins (+/- kV)

    -8 to 8

  • VIO Option Available


  • Protection

    TXD dominant timeout,overtemperature detection,undervoltage detection

  • Min High Input Levels (V) [Vio]


  • Supported standards

    ISO-11898-2:2016,SAE J2284-1,SAE J2284-2,SAE J2284-3,SAE J2284-4,SAE J2284-5

  • Thermal Resistance (Spec) (℃/W)


Technical Documents

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