Overview
The UJA1076ATW/5V0WD,1 is a high-speed CAN core System Basis Chip (SBC) developed by NXP USA Inc. This chip is designed to integrate various essential functions commonly found in Electronic Control Units (ECUs) into a single device, enhancing the efficiency and reliability of automotive and industrial control systems. The UJA1076ATW/5V0WD,1 supports high-speed Controller Area Network (CAN) communication and includes several key components such as a CAN transceiver, voltage regulators, a watchdog, and serial peripheral interface (SPI).
Key Specifications
| Parameter | Description |
|---|---|
| Package | HTSSOP32 plastic thermal enhanced thin shrink small outline package; 32 leads; body width 6.1 mm; lead pitch 0.65 mm; exposed die pad |
| Supply Voltage | 4.5 V to 28 V |
| Voltage Regulator (V1) | 5 V regulator (for UJA1076ATW/5V0xx versions) |
| Voltage Regulator (V2) | Dedicated voltage regulator for on-chip high-speed CAN transceiver |
| CAN Transceiver | High-speed CAN transceiver, compatible with ISO 11898-2 and ISO 11898-5 standards |
| Watchdog | Advanced independent watchdog (in WD versions) |
| Serial Peripheral Interface (SPI) | Full duplex SPI |
| Wake-up Inputs | 2 local wake-up input ports |
| Limp-home Output | Limp-home output port |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- High-speed CAN transceiver compatible with ISO 11898-2 and ISO 11898-5 standards, ensuring reliable and high-speed network communication
- Integrated voltage regulators (V1 and V2) for supplying the microcontroller and the CAN transceiver, respectively, with options for external PNP transistor for increased current capability
- Advanced independent watchdog with configurable modes (Normal, Window, Timeout, and Off) to ensure system reliability
- Full duplex Serial Peripheral Interface (SPI) for communication with the microcontroller
- Two local wake-up input ports and a limp-home output port for enhanced system control and safety features
- Operational down to VBAT voltages of 4.5 V during cranking, compliant with ISO 7637 and ISO 16750-2 standards
Applications
The UJA1076ATW/5V0WD,1 is primarily designed for automotive and industrial control systems. It is particularly useful in Electronic Control Units (ECUs) where high-speed CAN communication, reliable power management, and advanced system monitoring are required. This includes applications in vehicle networking, sensor control, and power management systems.
Q & A
- What is the primary function of the UJA1076ATW/5V0WD,1?
The primary function is to serve as a high-speed CAN core System Basis Chip (SBC) integrating essential functions for Electronic Control Units (ECUs) in automotive and industrial applications.
- What are the key components integrated into the UJA1076ATW/5V0WD,1?
The key components include a high-speed CAN transceiver, voltage regulators (V1 and V2), an advanced independent watchdog, and a Serial Peripheral Interface (SPI).
- What are the supply voltage ranges for the UJA1076ATW/5V0WD,1?
The supply voltage ranges from 4.5 V to 28 V.
- Is the UJA1076ATW/5V0WD,1 compliant with environmental regulations?
Yes, it is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- What is the purpose of the watchdog in the UJA1076ATW/5V0WD,1?
The watchdog ensures system reliability by monitoring the system's operation and resetting it if necessary, with configurable modes such as Normal, Window, Timeout, and Off.
- Can the UJA1076ATW/5V0WD,1 operate during vehicle cranking?
Yes, it can operate at VBAT voltages down to 4.5 V during cranking, compliant with ISO 7637 and ISO 16750-2 standards.
- What is the package type of the UJA1076ATW/5V0WD,1?
The package type is HTSSOP32, a plastic thermal enhanced thin shrink small outline package with 32 leads and a body width of 6.1 mm.
- Does the UJA1076ATW/5V0WD,1 support SPI communication?
Yes, it supports full duplex Serial Peripheral Interface (SPI) for communication with the microcontroller.
- What are the wake-up and limp-home features of the UJA1076ATW/5V0WD,1?
The chip includes two local wake-up input ports and a limp-home output port for enhanced system control and safety features.
- Is the CAN transceiver in the UJA1076ATW/5V0WD,1 compatible with industry standards?
Yes, the CAN transceiver is compatible with ISO 11898-2 and ISO 11898-5 standards.
