STMicroelectronics STM32L4 microcontrollers and development ecosystem

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STMicroelectronics has introduced the development ecosystem for its low-power, high-performance STM32L4 microcontrollers (MCUs) and expanded the series with five product lines comprising a range of package and memory-density options.

The ecosystem builds on ST’s free and easy-to-use STM32Cube platform. This comprises the STM32CubeMX initialisation-code generator and configurator with easy-to-use power estimation for ultralow-power design, and the STM32CubeL4 package that contains middleware components, Nucleo-32 board-support package (BSP), hardware abstraction layer (HAL) and low-layer APIs (LLAPIs).

For a quick start to projects, the slim-form-factor NUCLEO-L432KC board includes an STM32L432KCU6 device (UFQFPN32) and provides direct access to ARM mbed online tools. Its Arduino Nano pin layout simplifies function extensions and the integrated ST-Link debugger/programmer supports mass storage and allows probe-free debugging.

Five STM32L43x and STM32L44x MCU product lines comprise variants with versatile combinations of an integrated USB controller, an LCD controller and cryptography for security-conscious applications. They feature up to 256 KB of Flash and low-pin-count packages. The devices also offer rich digital peripherals including a true random-number generator (TRNG) and smart analog features such as a 12-bit 5 Ms/s ADC, internal voltage reference and ultralow-power comparators.

The devices are available in small-form-factor packages from 5 x 5 mm QFN-32 to 14 x 14 mm LQFP-100, including 3.14 x 3.13 mm WLCSP.