L9690

The L9690 is a high-performance, low-power 32-bit microcontroller from STMicroelectronics, designed for automotive and industrial applications requiring robust real-time control and advanced power management. Built on the ARM Cortex-M0+ core, it operates at up to 48 MHz, delivering efficient processing capabilities while maintaining minimal energy consumption—ideal for battery-powered systems. This microcontroller features up to 128 KB of Flash memory and 16 KB of SRAM, enabling storage of complex firmware and fast data access. It includes an integrated voltage regulator that supports supply voltages from 2.7 V to 5.5 V, making it suitable for diverse power environments. The L9690 also incorporates multiple communication interfaces such as SPI, I2C, and UART, facilitating seamless integration with sensors, displays, and other peripheral devices in embedded systems. One of its key strengths lies in its rich set of analog peripherals, including a 12-bit ADC with up to 16 channels and a programmable gain amplifier (PGA), allowing precise signal conditioning for sensor inputs like temperature, pressure, or current. Additionally, it offers a dedicated timer module with PWM generation for motor control and power conversion applications, enhancing system flexibility and performance. Designed for reliability in harsh environments, the L9690 meets AEC-Q100 Grade 1 qualification standards, ensuring durability in automotive-grade applications such as body control modules, lighting systems, and electronic throttle control. Its robust EMI immunity and built-in self-test functions contribute to system safety and compliance with industry regulations. The device also supports secure boot and read-out protection mechanisms, safeguarding intellectual property and preventing unauthorized access to firmware. With low-power modes including Stop, Standby, and Shutdown, it enables extended operation in energy-sensitive designs without compromising responsiveness. In summary, the L9690 provides a compact, efficient, and versatile solution for demanding embedded applications where performance, power efficiency, and reliability are critical.