Mini High-Speed CAN System Basis Chip with Standby Mode and Watchdog
Design Files
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Mini High-Speed CAN System Basis Chip for Partial Networking
The UJA1168ATK is a mini high-speed CAN system basis chip (SBC) containing an ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant HS-CAN transceiver supporting CAN FD up to 5 Mbit/s together with a 5 V/100 mA supply for a microcontroller. It also features a watchdog and a serial peripheral interface (SPI).
The UJA1168ATK can be operated in very-low-current standby and sleep modes and supports CAN partial networking by means of a selective wake-up function. A dedicated implementation of the partial networking protocol called “FD-passive” has been embedded as well.
A number of configuration settings are stored in non-volatile memory, allowing the SBC to be adapted for use in a specific application.
Product Details
Features
General
- Designed for automotive applications ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant high-speed CAN transceiver
- Hardware and software compatible with the UJA116x product family and with improved EMC performance
- ±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 the CAN bus pins, VEXT and on pins BAT and WAKE
- CAN bus pins short-circuit proof to ±58 V
- Battery and CAN bus pins are protected against automotive transients according to with ISO 7637-3
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 via ISO 11898-6 compliant selective wake-up frame detection, including CAN FD-passive support
Integrated Voltage Regulator (V1)
- Integrated 5 V / 100 mA voltage regulator for microcontroller supply
- Support for microcontroller RAM retention down to a battery voltage of 2 V
Sensor Supply Regulator (VEXT)
- Integrated 5 V / 30 mA voltage regulator for sensor supply
- Protected against short-circuits to GND and to the battery (can handle negative voltages as low as -18 V)
System Control Features
- Standby and Sleep mode featuring very low supply current
- Transmit data (TXD) dominant time-out function
- Mode control via the serial peripheral interface (SPI)
- Watchdog with independent clock source
- Local wake-up via the WAKE pin
- High-voltage output (INH) for controlling an external voltage
- Configuration of selected functions via non-volatile memory
Part numbers include: UJA1168ATK.
Comparison Table
| Features | |||||||||||
| Orderable Type | Standby Mode | Sleep Mode | VIO | LDO (5 V) | SPI | Watchdog | INH | External 5 V Supply | Partial Networking | CAN FD Active | CAN FD Passive |
| UJA1161ATK/0 | X | Internally used as self-supplied CAN | 5 Mbps | ||||||||
| UJA1162ATK/0 | X | X | X | Internally used as self-supplied CAN | INH | 5 Mbps | |||||
| UJA1163ATK/0 | X | 100 mA | 5 Mbps | ||||||||
| UJA1164ATK/0 | X | 100 mA | X | X | 5 Mbps | ||||||
| UJA1166ATK/0 | X | X | X | 100 mA | INH | 5 Mbps | |||||
| UJA1167ATK/0 | X | X | 100 mA | X | X | INH | 5 Mbps | ||||
| UJA1167ATK/X/0 | X | X | 70 mA | X | X | 5 V/ 30 mA | 5 Mbps | ||||
| UJA1168ATK/0 | X | X | 100 mA | X | X | INH | X | 5 Mbps | |||
| UJA1168ATK/X/0 | X | X | 70 mA | X | X | 5 V/ 30 mA | X | 5 Mbps | |||
| UJA1168ATK/F/0 | X | X | 100 mA | X | X | INH | X | 5 Mbps | X | ||
| UJA1168ATK/XF/0 | X | X | 70 mA | X | X | 5 V/ 30 mA | X | 5 Mbps | X | ||
Related products
Mini High-Speed CAN System Basis Chip with Standby/Sleep Mode and Watchdog
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Documentation
Quick reference to our documentation types.
5 documents
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Packing Information
HVSON14 Reel sulfur barrier pack, SMD, 13 Q1/T1 standard product orientation
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Supporting Information
UJA116xATK CRC Calculator
Design Resources
Software
Quick reference to our software types.
3 software files
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Middleware
UJA116xA SBC AUTOSAR R21-11 Version
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Debugging and Visualization Tools
FlexGUI for UJA1164A and UJA1168A SBCs
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Debugging and Visualization Tools
FlexGUI: Software Tool for Evaluation of Reference Design Kits
Note: For better experience, software downloads are recommended on desktop.