Quality of Automotive Network Products

NXP demonstrates a comprehensive commitment to quality by consistently striving for zero defects. This dedication allows for the timely introduction of innovative products that meet stringent quality requirements and are backed by excellent customer support.

Ultimately, the aim is to surpass customer expectations.

This overall quality is achieved through a deeply ingrained quality-first mindset and culture, a fundamental aspect of NXP's operations.

Benefits of Product Multi-Sourcing

NXP's automotive network products benefit from a multi-sourcing strategymeaning they are produced in multiple manufacturing facilities.
This approach offers several key advantages:

• Enables flexible supply capabilities.
• Establishes a highly reliable production infrastructure.
• Contributes to reduced lead times.
• Strengthens the assurance of consistent supply.
• Simplifies supply management in the event of disruptions such as natural disasters.

By advancing multi-sourcing, we enable a broader combination of factories for both front-end and back-end processes. This helps establish a more diverse production system, which enhances supply stability and ensures business continuity.

CAN Product Innovation Initiatives

NXP plays a vital role in the advancement of automotive network technology and is an active participant in the standardization efforts for CAN protocols. NXP has been involved in the development of the ISO 11898 standard, which defines the CAN protocol, and continues to contribute to the creation of new technical specifications such as CAN FD and CAN XL.

As part of NXP's commitment to innovation within its CAN product line, we will highlight the following three key areas:

• Support for the latest CAN communication protocols
• Solutions for Bridging Different Voltage Domains
• Integration of Security Features

NXP's Innovation in CAN Products

Support for the latest CAN communication protocols

NXP's CAN Physical Layer (PHY) products are designed to be compatible with the most current communication protocols.
Let's explore the various types of CAN protocols:

• CAN (Controller Area Network)

CAN is a widely established and standard communication protocol used extensively in in-vehicle networks. It is implemented in systems where real-time communication and high reliability are critical, such as those controlling the engine, transmission, steering, and braking systems within a vehicle.

• CAN FD (Flexible Data-rate)

CAN FD offers significant improvements over traditional CAN by enabling faster data communication speeds and the transfer of larger data payloads. This enhanced capability makes it well-suited for applications like in-vehicle infotainment systems and Advanced Driver Assistance Systems (ADAS).

• CAN XL (Extra Long) - Products Under Development

CAN XL is being developed as the next generation of in-vehicle network protocols. It promises even faster data communication and the ability to transfer larger amounts of data compared to CAN FD. This advancement will be crucial for supporting future high-performance automotive systems, including autonomous vehicles, sophisticated ADAS functionalities, and the comprehensive integration of the entire in-vehicle network.

• Comparison of CAN Protocols

Solutions for Bridging Different Voltage Domains

NXP's CAN Physical Layer (PHY) product line features isolated CAN transceivers designed to bridge different voltage domains.

In electric vehicles (EVs) and hybrid cars, networks operating at both high and low voltage levels coexist. NXP's isolated CAN transceivers facilitate secure communication in these environments by providing electrical isolation between systems with differing ground potentials through galvanic isolation. Integrating an isolator directly into the CAN transceiver significantly simplifies the design of safety bridges that connect these high and low voltage levels.

NXP's isolated CAN transceivers incorporate protection mechanisms against electric shock, overvoltage conditions, offset currents, and reverse current flow. Furthermore, they substantially enhance signal integrity in environments with high levels of electrical noise.

• Isolated CAN Transceiver

Integration of Security Features

NXP's CAN PHY product line also offers secure CAN transceivers, which integrate security functionalities into CAN communication.

These secure CAN transceivers from NXP provide a streamlined and cost-effective method to secure traditional CAN and CAN FD communication without the complexities of encryption. The secure CAN transceiver incorporates built-in filters that enable hardware-based authentication of local CAN communication. They also feature transmission bandwidth limiting capabilities. This prevents flooding attacks (Denial of Service) originating from the local host, without introducing bandwidth overhead, latency, or placing a burden on the processor with authentication and encryption software. The transceivers can detect security incidents such as "tampering," where a local host attempts to transmit a CAN message with an unassigned identifier, and "spoofing," where a CAN message containing an identifier exclusively assigned to the local host is received. Upon detection of such incidents, the transceiver transmits an active error frame, effectively invalidating the compromised message.

• TJA115x Secure CAN Transceiver

Types of Automotive CAN Transceivers

This section explains the types of NXP's CAN transceivers based on their power-saving modes.

Basic CAN

• This product line performs only basic CAN transmission and reception.
• They are the lowest-cost and most compact option (8-pin
• VIO (power terminal for adjusting TXD, RXD threshold voltage when MCU voltage is not 5V) is optional.
• TJA1057 High-Speed CAN Transceiver - Mantis Family

TJA1057 Block Diagram

Standby Mode CAN

• Standby mode reduces power consumption.
• The standby mode is controlled via the STB pin
• Used when CAN wake-up function is needed.
• Package is 8-pin, same as the basic model.
• VIO (power terminal for adjusting TXD, RXD threshold voltage when MCU voltage is not 5V) is optional.
• TJA1044 High-Speed CAN Transceiver with Standby Mode

TJA1044 Block Diagram

Sleep Mode CAN

• Sleep mode enables the development of more advanced low-power systems. In addition to reducing CAN IC power consumption, it allows ECU power ON/OFF control via the INH pin.
• To provide additional system control and battery power input pins, the package is expanded to 14 pins.
• TJA1043 High Speed CAN transceiver

TJA1043 Block Diagram

Recommended CAN Transceiver Products

This section highlights recommended CAN transceiver products within NXP's comprehensive automotive network portfolio.

In the table provided, the "CAN SIC" column on the far right indicates products that incorporate SIC functionality into CAN transceivers already equipped with Standby and Sleep Modes. SIC (Signal Improvement Capability) is a feature designed to mitigate signal ringing on the CAN bus, thereby enhancing overall signal quality. Notably, CAN SIC transceivers can be implemented as direct replacements for standard CAN transceivers.

• CAN Signal Improvement Capability (SIC)

Recommended CAN Transceivers from NXP

For more details, please visit the NXP official site: CAN Transceivers

• NXP's Automotive LIN Transceivers