UJA1076TW/5V0,118

Specialized Overview

The UJA1076TW/5V0,118 is a high-speed CAN core System Basis Chip (SBC) from NXP Semiconductors. It integrates a high-speed CAN transceiver compliant with ISO 11898-2 and ISO 11898-5 standards, an advanced independent watchdog, and two voltage regulators. The main regulator V1 provides a scalable 5 V output delivering up to 250 mA for microcontroller supply, while the separate regulator V2 supplies the on-board CAN transceiver. The device features a full-duplex Serial Peripheral Interface (SPI), two local wake-up input ports, and a limp-home output port. It is housed in a 32-lead HTSSOP package.

Specialized Feature Summary

• Integrates a high-speed CAN transceiver compatible with TJA1042 and automotive EMC standards
• Includes a scalable 5 V voltage regulator capable of supplying up to 250 mA for microcontrollers
• Features an advanced independent watchdog with Window and Timeout modes
• Provides detailed status reporting and safe system start-up behavior via SPI interface

Specialized Applications

• Electronic Control Units (ECU) requiring integrated power management and communication
• Automotive networking applications controlling power and sensor peripherals
• Systems utilizing high-speed CAN as the main network interface

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm regulatory compliance and package variations. Ensure the component matches the required voltage regulator version and whether the watchdog functionality is included based on the part number designation.

Specialized Selection Notes

Select this component when designing ECUs that require a single-chip solution for CAN communication and power regulation. Consider the external PNP transistor option if higher current capability or improved thermal dissipation distribution across the PCB is necessary for the application.

Specialized Part Context

This component belongs to the UJA1076 family of System Basis Chips designed specifically for automotive electronic control units. It consolidates discrete components typically found in ECUs into a single package, simplifying design and improving reliability through integrated power management and standardized communication interfaces.

Specialized Replacement Considerations

The datasheet notes downward compatibility with the TJA1042 CAN transceiver. However, direct pin-to-pin replacements within the SBC category should be verified against official substitution lists, as internal regulator configurations and watchdog implementations may differ between manufacturers.