NXP UJA1164ATK: A Comprehensive System Basis Chip for Automotive Networking Applications
The increasing complexity of in-vehicle electronic architectures demands highly integrated and robust components. At the heart of many modern vehicle networks lies the System Basis Chip (SBC), a pivotal device that consolidates multiple critical functions into a single package. The NXP UJA1164ATK stands out as a premier solution in this category, specifically engineered to meet the stringent requirements of automotive networking applications.
This SBC is a highly integrated component designed to serve as a local power supply and communication gateway for microcontrollers in automotive sub-nodes, particularly those within Controller Area Network (CAN) or CAN FD (Flexible Data-Rate) systems. Its primary role is to manage power, handle network communication, and provide robust protection, thereby reducing the system's overall complexity, footprint, and cost.
Key Features and Functionalities:
The UJA1164ATK's architecture is a testament to high integration. It incorporates a high-speed CAN transceiver that is fully compliant with the ISO 11898-2:2016 and ISO 11898-5:2007 standards, ensuring reliable and error-free communication in the electrically noisy automotive environment. Alongside this, it features a linear voltage regulator that supplies a stabilized 5V or 3.3V output to an external microcontroller and other components, with built-in overload and short-circuit protection.
A significant advantage of this SBC is its ultra-low-power management capability. It supports multiple power modes, including a special "standby" or "sleep" mode with very low quiescent current. This allows the entire electronic control unit (ECU) to achieve extremely low power consumption when inactive, a critical feature for today's always-connected vehicles to prevent battery drain.
Furthermore, the chip includes a windowed watchdog and a high-speed CAN wake-up capability. The watchdog timer monitors the microcontroller for malfunctions, enhancing system safety. The wake-up function allows the network to rouse the entire ECU from its sleep mode upon detecting specific CAN bus traffic, enabling features like keyless entry and remote diagnostics.
Designed for Automotive Rigor:
The UJA1164ATK is built to survive the harsh conditions of an automobile. It is AEC-Q100 qualified, guaranteeing its performance across the automotive temperature range. It offers superior electrostatic discharge (ESD) protection and is immune to transients typical in automotive environments, ensuring exceptional reliability and longevity. Its design also contributes to improved Electromagnetic Compatibility (EMC) performance, minimizing both emissions and susceptibility.
Application Scope:
Its typical applications are vast, including but not limited to:
Body control modules (e.g., door control, seat control)
Lighting control systems
HVAC (Heating, Ventilation, and Air Conditioning) control
Sensor and actuator interfaces
Any network node requiring a compact, efficient power and communication solution.
ICGOODFIND Summary
The NXP UJA1164ATK is a highly integrated and robust System Basis Chip that is indispensable for simplifying and enhancing automotive electronic designs. By combining a CAN transceiver, voltage regulator, and comprehensive protection features into a single package, it provides a reliable, space-efficient, and cost-effective foundation for a wide array of in-vehicle networking applications, directly addressing the core needs of next-generation automobile design.
Keywords:
1. System Basis Chip (SBC)
2. CAN Transceiver
3. Automotive Networking
4. Voltage Regulator
5. Low-Power Management
