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  • TJA1049T/3/1Z

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TJA1049T/3/1Z Overview

For security on TJA1042, TJA1044, TJA1049, go to Secure CAN TJA1152.The TJA1049 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,supplying the differential transmit and receive capability to (a microcontroller with) a CANprotocol controller.The TJA1049 belongs to the third generation of high-speed CAN transceivers from NXPSemiconductors, offering significant improvements over first- and second-generationdevices 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 offA very low-current Standby mode with bus wake-up capabilityTJA1049T/3 and TJA1049TK/3 can be interfaced directly to microcontrollers withsupply voltages from 3 V to 5 VThe TJA1049 implements the CAN physical layer asdefined in the current ISO11898 standard (ISO11898-2:2003, ISO11898-5:2007 and thepending updated version of ISO 11898-2:2016). Pending the release of ISO11898-2:2016including CAN FD and SAE J2284-4/5, additional timing parameters defining loop delaysymmetry are specified. This implementation enables reliable communication in the CAN FDfast phase at data rates up to 5 Mbit/s.These features make the TJA1049 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.
TJA1049 Block Diagram


  • Fully ISO 11898-2:2003 and ISO 11898-5:2007 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 TJA1049T/3 and TJA1049TK/3 allows for direct interfacing with 3 V to 5 V microcontrollers
  • SPLIT voltage output on TJA1049T and TJA1049TK for stabilizing recessive bus level
  • Both variants available in SO8 and HVSON8 packages
  • Leadless HVSON8 package (3.0 mm × 3.0 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 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)
  • Protection
  • High ESD handling capability on the bus pins
  • Bus pins protected against transients in automotive environments
  • Transmit Data (TXD) dominant time-out function
  • Bus-dominant time-out function in Standby mode
  • Undervoltage detection on pins V
  • CC
  • IO
  • Thermally protected
  • Product Longevity Program
  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The TJA1049 is included in the 15-year program.

Product Parameters

  • Recommended Orderable Part Number


  • MCU I/O Interface (V)


  • Low Power Modes

    Standby Mode

  • CAN Channels


  • Supply Voltage [Min to Max] (V)

    4.75 to 5.25

  • Voltage on bus pins [Min-Max] (V)

    -58 to 58

  • VESD HBM on bus pins (+/- kV)

    -8 to 8

  • 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)


  • New Generation Recommendation


  • VIO Option Available


  • Data Rate [max] kbps


  • Product Category

    CAN FD / High-Speed CAN,VeLIO

  • Data Rate [min] kbps


  • VESD IEC on bus pins (+/- kV)

    -8 to 8

  • Junction Temperature (Max) (℃)


  • Wake-Up Pin


  • GPIO


  • SPLIT Pin


  • Product Application


Technical Documents

  • AH1021: Application Hints - High speed CAN transceiver TJA1049Details>>

  • High-speed CAN transceiver with Standby modeDetails>>