STM32 L4+ series cortex-m4 ultra-low power microcontroller

ST extends STM32L4 product line and its performance. The latest STM32L4+ series MCU provides superior performance (up to 120 MHz at the highest frequency), larger internal storage (up to 2 MB Flash memory and 640 KB SRAM), richer graphics processing power and connectivity while maintaining the best ultra-low power consumption features.

STM32L4+ series breaks the performance limit of the current ultra-low power consumption field, and can achieve the performance of 150 DMIPS/409 CoreMark by executing in-chip FLASH instructions. Low power applications based on consumer, medical, and industrial applications are in demand thanks to the built-in 640KB SRAM.

STM32L4+ series MCU can adjust the voltage 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.

The new STM32L4+ series also has built-in advanced graphics processing functions to facilitate the implementation of wonderful user graphical interface.

Chrom ‐ ART Accelerator ™ is a ST patent 2 d graphics hardware Accelerator, is especially efficient in dealing with a repeat of graphics operations, release the CPU load, greatly conducive to efficient real-time processing, and complete advanced graphics operations.

Chrom ‐ ART accelerator with built-in large capacity of built-in SRAM, Chrom ‐ GRC ™ comprehensive memory optimizer and high data throughput Octo - SPI interface closely, greatly improve TFT and DSI controller performance, let chip performance to the limit. Based on STM32L4+ single chip ultra-low power consumption scheme, the "smartphone-like" graphical user interface is implemented.

The STM32L4+ series includes different product lines: STM32L4R5/S5, STM32L4R7/S7 (with TFT interface) and STM32L4R9/S9 (with MIPI‐DSI and TFT interface).

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: 20 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 + 64 KB RAM: 800 nA

• ultra low power mode + 64 KB RAM + RTC: 1 mu A

• dynamic operating mode: as low as 43 mica /MHz

• wake-up time: five microns