Document
UJA1164
Mini high-speed CAN system basis chip with Standby mode & watchdog
Rev. 2 — 17 April 2014
Product data sheet
1. General description
The UJA1164 is a mini high-speed CAN System Basis Chip (SBC) containing an ISO 11898-2/5 compliant HS-CAN transceiver and an integrated 5 V/100 mA supply for a microcontroller. It also features a watchdog and a Serial Peripheral Interface (SPI). The UJA1164 can be operated in a very low-current Standby mode with bus wake-up capability and supports ISO 11898-6 compliant autonomous CAN biasing.
The UJA1164 implements the standard CAN physical layer as defined in the current ISO11898 standard (-2 and -5). Pending the release of the updated version of ISO11898 including CAN FD, additional timing parameters defining loop delay symmetry are included. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 2 Mbit/s.
A number of configuration settings are stored in non-volatile memory, allowing the SBC to be adapted for use in a specific application. This makes it possible to configure the power-on behavior of the UJA1164 to meet the requirements of different applications.
2. Features and benefits
2.1 General
ISO 11898-2 and ISO 11898-5 compliant high-speed CAN transceiver Loop delay symmetry timing enables reliable communication at data rates up to
2 Mbit/s in the CAN FD fast phase Autonomous bus biasing according to ISO 11898-6 Fully integrated 5 V/100 mA low-drop voltage regulator for 5 V microcontroller
supply (V1) Bus connections are truly floating when power to pin BAT is off
2.2 Designed for automotive applications
8 kV ElectroStatic Discharge (ESD) protection, according to the Human Body Model (HBM) on the CAN bus pins
6 kV ESD protection, according to IEC 61000-4-2 on the CAN bus pins and on pin BAT
CAN bus pins short-circuit proof to 58 V Battery and CAN bus pins protected against automotive transients according to
ISO 7637-3 Very low quiescent current in Standby mode with full wake-up capability
NXP Semiconductors
UJA1164
Mini high-speed CAN system basis chip with Standby mode & watchdog
Leadless HVSON14 package (3.0 mm 4.5 mm) with improved Automated Optical Inspection (AOI) capability and low thermal resistance
Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
2.3 Low-drop voltage regulator for 5 V microcontroller supply (V1)
5 V nominal output; 2 % accuracy 100 mA output current capability Current limiting above 150 mA On-resistance of 5 (max) Support for microcontroller RAM retention down to a battery voltage of 2 V Undervoltage reset with selectable detection thresholds: 60 %, 70 %, 80 % or 90 % of
output voltage Excellent transient response with a 4.7 F ceramic output capacitor Short-circuit to GND/overload protection on pin V1
2.4 Power Management
Standby mode featuring very low supply current; voltage V1 remains active to maintain the supply to the microcontro.