With the rapid development of automotive electronics technology, the performance and energy efficiency of on-board chips have become the key factors to promote the progress of the industry. On March 25, 2025, Renesas, a world-renowned supplier of semiconductor solutions, launched its first automotive-grade Bluetooth Low Energy SoC, DA14533, which not only made a major breakthrough in technology, but also set a new industry benchmark in automotive applications.
1. Low-power consumption design, leading the new trend of energy saving
DA14533 exemplary in terms of power consumption control. It has a built-in advanced integrated DC-DC buck converter that precisely adjusts the output voltage to the needs of the system. In practice, the transmit current is only 3.1mA, the receive current is as low as 2.5mA, and the current consumption in sleep mode is an astonishing 500nA. This excellent low power consumption makes it a huge advantage in small, battery-powered in-vehicle systems. For example, in tire pressure monitoring systems (TPMS), DA14533's low-power design can significantly extend the life of the battery and reduce the maintenance costs and environmental burden associated with battery replacement. At the same time, it can also meet the strict requirements of automobile manufacturers for energy conservation and environmental protection, and help the automotive industry to develop in a green and sustainable direction.
2. Vehicle-grade certification to ensure excellent quality and reliability
DA14533 is rigorous AEC-Q100 Grade 2 qualified, which signifies its ability to maintain superior quality and reliability in extreme automotive environments. Its extended operating temperature range of -40 to +105°C means that the chip can operate reliably regardless of ambient temperature, whether in hot desert regions or cold polar climates. This high reliability and wide temperature adaptability make it an ideal choice for systems with extremely high requirements for stability and durability in automotive, industrial and other fields. In automotive applications, such as keyless entry systems, wireless sensor networks, and battery management systems, DA14533 can provide stable and reliable connectivity and data transmission, providing a strong guarantee for users' driving safety and system stability.
Figure: Renesas' first automotive-grade Bluetooth Low Energy SoC with excellent low power consumption
3. Ultra-compact design reduces costs and development difficulties
DA14533 is designed in an ultra-compact package of 22-pin 3.5mm x 3.5mm WFFCQFN to make it the smallest automotive-grade Bluetooth LE SoC on the market today. This small size allows it to be easily integrated into space-constrained in-vehicle electronic systems without taking up too much space. At the same time, it provides a best-in-class engineering bill of materials (eBOM) with only 6 external components, greatly simplifying the development process and reducing overall system costs. For automakers and system integrators, this means they can reduce the cost of their products and increase their competitiveness in the market without sacrificing performance and quality. In addition, a single external crystal oscillator (XTAL) is used for both active and sleep modes, eliminating the need for a separate oscillator for sleep mode, which further reduces the number of external components and increases the integration and reliability of the system.
4. Rich functions and powerful performance to meet the needs of diverse applications
DA14533 integrates multiple components such as RF transceivers, Arm® M0+ microcontrollers, memory, peripherals, and security functions into a compact system-on-chip. Its Arm® Cortex-M0®+ microcontroller can be used as a stand-alone application processor or as a data pump in a host system with powerful data processing capabilities. With 64KB of RAM and 12KB of one-time programmable (OTP) memory, the system provides ample memory resources to meet the needs of a variety of complex applications. In addition, it supports 2.4GHz RF transceivers and has high-speed data transmission capabilities for fast and stable data communication. These rich functions and powerful performance enable DA14533 to be widely used in a variety of in-vehicle applications such as tire pressure monitoring, keyless entry, wireless sensors and battery management systems, providing solid technical support for the intelligence and networking of automobiles.
5. Security functions and the latest standards to protect the safety of connected devices
DA14533 compliant with Bluetooth Core Specification 5.3 and includes the latest security features to protect connected devices from a wide range of cyber threats. In the context of the increasing intelligence and networking of today's automobiles, information security issues are becoming increasingly prominent. Renesas' integrated security features in the DA14533 provide a strong guarantee for users' driving safety and privacy protection. This not only demonstrates Renesas' strict requirements for product quality, but also demonstrates the high importance it attaches to user security and privacy.
6. Successful product portfolio to accelerate the process of product launch
Renesas has combined DA14533 with R-Car H3/M3/E3 SoCs, PMICs, and timing devices to create a variety of "Winning Combinations" solutions, including the Tire Pressure Monitoring System. These solutions are based on compatible devices that work together seamlessly, along with a technically proven system architecture, providing customers with optimized, low-risk designs and faster time-to-market. Based on its broad product lineup, Renesas has launched more than 400 "Winning Combinations" designed to help users advance the design process, improve development efficiency, and shorten time to market.
7. Market impact and industry outlook
The launch of the DA14533 not only enriches Renesas' Bluetooth Low Energy SoC product family, but also brings new possibilities to automotive applications. With the continuous progress of the automotive industry and the deepening of the intelligent trend, the demand for low-power, high-performance, and high-reliability automotive chips will continue to grow. Renesas has leveraged its technology accumulation and market experience in the Bluetooth Low Energy SoC field to further strengthen its leading position in the automotive chip market by DA14533 this product. At the same time, this chip also sets a new benchmark for other semiconductor manufacturers, promoting the continuous progress and innovation of the entire industry in Bluetooth LE chip technology.
In short, the DA14533 Bluetooth Low Energy SoC from Renesas is a highly competitive product in terms of technical performance, reliability, and cost-effectiveness. It not only brings lower energy consumption and higher efficiency to in-vehicle applications, but also opens up more possibilities for future intelligent transportation and IoT applications. As the automotive industry continues to become intelligent and connected, innovative products like DA14533 will play an important role in driving the industry forward and improving the user experience.
