Mini High-Speed CAN System Basis Chip

Block Diagram

UJA1169ATK Block Diagram

UJA1169ATK Block Diagram



  • Designed for automotive applications according to ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5
  • Hardware and software compatible with the UJA1169 product family
  • ±8 kV ESD protection, according to the human body model (HBM) on the CAN-bus pins
  • ±6 kV ESD protection according to IEC TS 62228 on pins BAT, WAKE, VEXT and the CAN-bus pins
  • CAN-bus pins short-circuit proof to ±58 V
  • Battery and CAN-bus pins protected against automotive transients according to ISO 7637-3

Low-Drop Voltage Regulators (LDOs)

  • V1 voltage regulator 5 V or 3.3 V with 250 mA output current capability
  • Active power distribution via optional external PNP transistor
  • V2 auxiliary voltage regulator 5 V with 100 mA output current capability
  • V2 is protected against shorts to GND, battery and negative voltages down to -18 V for off-board loads (UJA1169ATK/X and UJA1169ATK/X/F only)

CAN Transceiver

  • High-speed CAN transceiver supporting CAN FD active communication up to 5 Mbit/s in the CAN FD data field
  • Autonomous bus biasing according to ISO 11898-6
  • Remote wake-up capability via standard CAN wake-up pattern or ISO 11898-2:2016 compliant CAN partial networking by means of selective wake-up frame detection including CAN FD passive support (/F versions only)

System Control Features

  • Wake-up via CAN or local wake-up pin with wake-up source detection
  • Watchdog with window, timeout and autonomous modes and microcontroller-independent clock source
  • LIMP output pin with configurable activation threshold
  • 16-, 24- and 32-bit SPI for configuration, control and diagnosis

Part numbers include: UJA1169ATK.

Comparison Table

Orderable Type Standby mode Sleep mode LDO (5V0) (mA) LDO (3V3) (mA) SPI Watchdog External 5 (V) Supply (mA) Partial Networking CAN FD Active (Mbps) CAN FD Passive LIMP
UJA1169ATK X X 250 X X 5 X
UJA1169ATK/X X X 250 X X 100 5 X
UJA1169ATK/F X X 250 X X X 5 X X
UJA1169ATK/X/F X X 250 X X 100 X 5 X X
UJA1169ATK/3 X X 250 X X 5 X
UJA1169ATK/F/3 X X 250 X X X 5 X X


Quick reference to our documentation types.

5 documents


Quick reference to our board types.

2 hardware offerings


Quick reference to our software types.

2 software files

Note: For better experience, software downloads are recommended on desktop.


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