TechWire International

New Product Announcement

Mouser Now Stocking STMicroelectronics’ Ultra-Low-Power
STM32L4 Microcontrollers

September 17, 2015 - Mouser Electronics, Inc. is now stocking the new STM32L4 series 32-bit microcontrollers from STMicroelectronics (ST). These ultra-low-power STM32L4 32-bit microcontrollers are based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80MHz. The STM32L4 microcontrollers leverage ST’s low power technologies including voltage scaling to balance power consumption with processing demand and include seven low-power management modes to give designers flexibility to optimize power consumption in a broad range of applications.

STM32L4STM32L4 series microcontrollers, available from Mouser Electronics, are based on the ARM® Cortex®-M4 core with a floating point unit (FPU), which supports all ARM single-precision data-processing instructions and data types. Run current is a low 112µA/MHz. The devices feature ST’s Adaptive Real-Time memory Accelerator (ART Accelerator™), which allows zero-wait states out of the 64-bit program flash at a clock speed of 80MHz. This accelerator technology implements an innovative instruction prefetch queue and branch cache resulting in near 100 DMIPS performance.

The STM32L4 devices embed high-speed memories (up to 1 Mbyte of flash memory and up to 128 Kbytes of SRAM), a flexible external memory controller for static memories (for devices with packages of 100 pins and more), a quad SPI flash memories interface, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix. The devices offer three fast 12-bit analog-to-digital converters (ADCs), two comparators, two operational amplifiers, two digital-to-analog converter (DAC) channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timers, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma-delta modulators. Additionally, up to 24 capacitive sensing channels are available. The devices also embed an integrated 8x40 or 4x44 LCD driver with internal step-up converter.

Mouser also stocks a complete range of STM32L4 evaluation kits including the STM32L4 Discovery Kit (STM32L476G-DISCO), STM32L4 Nucleo board (NUCLEO-L476RG) and STM32L4 Evaluation board (STM32L476G-EVAL). The STM32L4 ecosystem is completed with STM32Cube support for the STM32L4 microcontrollers.

The overall low power consumption, high performance, and DSP capability of the Cortex-M4 core, smart analog features, and extensive digital connectivity of the new STM32L4 series make these devices ideal for smart connected and Internet-of-Things (IoT) applications, as well as a wide variety of industrial, medical, and consumer products.

To learn more about the STM32FL4 microcontrollers from Mouser, visit

With its broad product line and unsurpassed customer service, Mouser caters to design engineers and buyers by delivering What’s Next in advanced technologies. Mouser offers customers 21 global support locations and stocks the world’s widest selection of the latest semiconductors and electronic components for the newest design projects. Mouser Electronics’ website is updated daily and searches more than 10 million products to locate over 4 million orderable part numbers available for easy online purchase. also houses an industry-first interactive catalog, data sheets, supplier-specific reference designs, application notes, technical design information, and engineering tools.

About Mouser Electronics

Mouser Electronics, a subsidiary of TTI, Inc., is part of Warren Buffett's Berkshire Hathaway family of companies. Mouser is an award-winning, authorized semiconductor and electronic component distributor, focused on the rapid introduction of new products and technologies to electronic design engineers and buyers. features more than 4 million products online from more than 500 manufacturers. Mouser publishes multiple catalogs per year providing designers with up-to-date data on the components now available for the next generation of electronic devices. Mouser ships globally to over 500,000 customers in 170 countries from its 492,000 sq. ft. state-of-the-art facility south of Dallas, Texas. For more information, visit


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