NXP recently released a new system basis chip that will revolutionize smart car access, making it more secure and efficient than ever before.
Let us introduce you to the FS24 SBC.
NXP: Shaping the Future of Automotive Electronics
NXP is a semiconductor designer and manufacturer that focuses on high-performance mixed-signal solutions for customers. Playing a pivotal role in the automotive electronics industry, NXP offers system solutions that ensure fast time-to-market and scalability. They have become a leader in automotive microprocessors, ADAS, radar, secure car access, infotainment, and in vehicle networking. Setting the standard for the future of automotive technology, NXP delivers a zero-defect methodology and leads the industry in functional safety and security.
In this post, we introduce the new NXP system basis chip, the FS24 SBC, and explore its innovative features and transformative impact on modern automotive technology.
The Basics of System Basis Chips
System Basis Chips (SBC’s) are primarily used in the automotive industry to improve system performance in automotive applications, simplify design, and enhance reliability in modern vehicles. All embedded within a single device, an SBC comprises a single integrated circuit with multiple functions such as CAN, LIN, DC/DC converters, and LDOs. Some SBCs incorporate a power switch, diagnostic, supervisory, and fail-safe monitoring functions.
SBCs play a vital role in modern vehicles, serving as the backbone of the electrical system. These chips manage various functions, such as power distribution, communication networks, and monitoring systems. SBCs enable a range of advanced features, including automotive infotainment systems, enhanced safety mechanisms, comfort controls, body control modules, and wireless charging capabilities.
The FS24 SBC
NXP’s new system basis chip, the FS24 SBC, is a safety Mini CAN SBC designed to support secure car access applications using Ultra Wideband, near-Field Communication, and Bluetooth Devices. The FS24 supports a wide range of applications, offering choices in output voltage setting, physical interface, and integrated system-level features to address low-power and noise-sensitive applications with automotive safety integrity levels up to ASIL B.
Features
Key Features
- HVBUCK up to 400 mA
- HVLDO up to 150 mA
- CAN FD interface
- 32-pin 5mm x 5mm HVQFN package
System Features
- OTP (one-time programmable) memory for flexible device configuration
- 32bit SPI interface with 8bit CRC (up to 4 MHz)
- IO compatible from 1.9 V to 5 V
- Advanced Low Power Mode: <40 µA in Low Power mode in LPOFF and <25 µA in LPON (MCU powered)
- Over temperature protection
- AMUX for various voltage monitoring
- CAN FD 5M with wake-up capabilityies
- HWID input to setup module hardware ID
The FS24 Powers Smart Car Access
FS24 system basis chip enables applications such as:
Digital Key for Secure Car Access
Radar Functionalities, including Child Presence Detection
Kick-sensing for easy trunk access
Revolutionizing Automotive Technology
The FS24 system basis chip revolutionizes automotive technology by addressing critical challenges in power management, system management, and safety management.
Power management is a significant challenge in automotive systems. The FS24 addresses this by optimizing current consumption with dedicated low-power modes, reducing system current consumption by a factor of two compared to a linear regulator solution.
The FS24 chip enhances system management by integrating digital lifestyle features into vehicles through multiple anchors. NXP’s UWB system offers real-time precise localization, while the FS24’s Hardware ID feature can identify up to nine anchor positions within the car. This allows a single hardware/software anchor design to be replicated throughout the vehicle, simplifying software design, reducing the hardware bill of materials, and lowering module development costs.
The FS24 chip enhances safety management by offering flexibility with both quality-managed and ASIL B derivatives according to the ISO26262 standard. It integrates safety outputs and ABIST On-Demand for robustness
By optimizing current consumption, integrating digital lifestyle features, and offering robust safety measures, the FS24 ensures system efficiency, enables scalable system solutions, and simplifies safety integration.
The Inner Workings of the FS24 System Basis Chip
The FS24 includes a battery-connected switched-mode regulator (V1) and a battery-connected linear regulator (V3) to power microcontrollers, communication devices, and more. V1 offers a high-performance switching regulator that can operate in both pulse frequency modulation (PFM) mode and forced PWM (FPWM) mode. The operating mode can be adjusted using wake pins to optimize noise management.
Unlocking the Future
NXP’s new FS24 system basis chip is set to transform the automotive electronics landscape with its innovative features, including secure car access, child presence detection and kick sensing. By addressing critical challenges in power management, system management, and safety integration, the FS24 system basis chip optimizes current consumption and enhances digital lifestyle integration and safety measures within vehicles. The FS24 SBC exemplifies NXP’s commitment to driving the future of advanced automotive technology, making smart car access more secure and efficient than ever before.
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