STMicroelectronics (ST) 's new STM32L4 family of 32-bit microcontrollers. The ultra-low-power STM32L4 MCU is based on the high-performance ARM Cortex-M4 32-bit RISC core and operates at up to 80MHz. The STM32L4 microcontroller leverages ST ’s low-power technology, including voltage scaling to balance power consumption and processing requirements, and includes seven low-power management modes, giving designers the flexibility to optimize power consumption in a variety of applications.
These devices have a floating-point unit (FPU) that supports all ARM single-precision data processing instructions and data types. Operating current is as low as 112μA / MHz. These devices feature ST's adaptive real-time memory accelerator (ART Accelerator), which allows zero-wait states to be generated from 64-bit program flash at a clock speed of 80 MHz. This accelerator technology implements an innovative instruction prefetch queue and branch cache, which can achieve nearly 100 DMIPS performance.
STM32L4 devices embed high-speed memory (up to 1 MB of flash and up to 128 KB of SRAM), flexible external memory controller for static memory (for devices with 100-pin and more packages), a quad SPI flash Interface, as well as a wide range of enhanced I / O and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix.
These devices provide three fast 12-bit analog-to-digital converters (ADCs), two comparators, two operational amplifiers, two digital-to-analog converter (DAC) channels, an internal reference buffer, and 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 device supports four digital filters for external sigma-delta modulators. In addition, up to 24 capacitive sensing channels are available. These devices also embed an integrated 8 x 40 or 4 x 44 LCD driver with an internal boost converter.
Mouser also offers a full suite of STM32L4 evaluation kits, including the STM32L4 Discovery Kit (STM32L476G-DISCO), the STM32L4 Nucleo Board (NUCLEO-L476RG) and the STM32L4 Evaluation Board (STM32L476G-EVAL). The STM32L4 ecosystem has completed STM32Cube support for STM32L4 microcontrollers.
The new STM32L4 series has the overall low power consumption, high performance and DSP capabilities of the Cortex-M4 core, intelligent analog functions, and extensive digital connectivity. These devices are ideal for smart connectivity and Internet of Things (IoT) applications, as well as a wide variety of industries , Medical and consumer goods.
