STM32 L4 series cortex-m4 ultra-low power microcontroller

Stmicroelectronics achieves the best ultra-low power consumption and performance of its kind by building a new chip architecture, which benefits from its high flexibility in application design. STM32L4 MCU in the standardization of ultra-low power microcontrollers efficiency EEMBC ™ ULPBench ® tests for 253 points this test is used for all kinds of low power consumption microprocessor low power efficiency comparison standard]. In addition, STM32L4 series single-chip microcomputer has broken the performance limit of the current ultra-low power consumption field. Based on the ARM with FPU ® architecture ® - M4 kernel and stmicroelectronics ART Accelerator ™ technology under the premise of the series in 80 MHz CPU frequency performance can be achieved under the 100 DMIPS.

STM32L4 series MCU can adjust the voltage timely according to the different application requirements of the microprocessor to achieve the dynamic balance of power consumption. This function is suitable for STOP mode low-power peripherals (LP UART, LP timer), security and confidentiality features, a large number of intelligent peripherals, and such as operational amplifier, comparator, LCD, 12-bit DAC and 16-bit ADC (hardware oversampling) and other advanced low-power analog peripherals.

This series includes different product lines: STM32L4x1 (basic model series), STM32L4x2 (USB Device), STM32L4x3 (USB Device, LCD), STM32L4x5 (USB OTG) and STM32L4x6 (USB OTG, LCD).

In order to simplify the migration operation between STM32 microcontrollers and provide users with the required flexibility, STM32L4 MCU is compatible with different series of STM32 pins, which opens the door to the entire STM32 ecosystem for you.

• ultra-low power consumption mode: 8 nA, with backup register and no RTC (5 wake-up pins)

• ultra-low power consumption mode + RTC: 200 nA, with backup register (5 wake-up pins)

• ultra low power mode + 16 KB RAM: 200 nA

• ultra-low power consumption mode + 16kb RAM + RTC: 450 nA

• dynamic operating mode: as low as 36 mica /MHz

• wake-up time: five microns