Shenzhen Meiyuxin Technology Co., Ltd. [distributing ST chips] STM32L552QEI6 ARM microcontroller - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU quality assurance! ! !

Product Description:

The STM32L552QEI6 devices are ultra-low-power microcontroller series (STM32L5 series) based on the high-performance Arm® Cortex®-M33 32-bit RISC core. They operate up to 110 MHz. The Cortex®-M33 core has a single-precision floating-point unit (FPU) that supports

All Arm® single precision data processing instructions and all data types. The Cortex®-M33 core also implements a full set of DSP (Digital Signal Processing) instructions as well as a Memory Protection Unit (MPU) for enhanced application security.

STM32L552QEI6 These devices embed high-speed memory (512 KB Flash and 256 KBSRAM), a flexible external memory controller (FSMC) for static memory (for packages with devices with 100 pins and more), An Octo-SPI flash interface (available in all packages) and a wide range of enhanced I/O and peripherals connect to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L552QEI6 family of devices provides a Trusted Foundation compliant Security Base Arm's Security Architecture (TBSA) requirement. They embed the necessary security for secure boot, secure data storage, secure firmware installation, and secure firmware upgrades. Manage flexible lifecycle protection with multi-level readouts. Thanks to secure peripherals, support for hardware isolation of firmware, memory and I/O, as well as the possibility to configure peripherals and memory "privileged".

The STM32L552QEI6 devices embed several protection mechanisms for embedded Flash memory and SRAM: read protection, write protection, security and hidden protection fields. STM32L552QEI6 devices embed security-enhanced peripherals:

- A HASH hardware accelerator

- a true random number generator

The STM32L552QEI6 series devices offer active tamper detection and protection against transient and environmental perturbation attacks thanks to the generation of several internally monitored secret data erases against attacks. This helps meet PCI requirements for point-of-sale applications. These devices provide two fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two 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 device supports four digital filters for an external sigma delta modulator (DFSDM). Additionally, up to 22 capacitive sensing channels are available.

The STM32L5 series also features standard and advanced communication interfaces such as:

- Four I2C

- Three SPIs

- Three USARTs, two UARTs, and one low-power UART

- two SAIs

- One SDMMC

- One FDCAN

- USB device file system

- USB Type-C / USB Power Delivery Controller

STM32L552QEI6 The device operates from a 1.71 to 3.6 V supply over the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges. A comprehensive set of power saving modes allows the design of low power applications. Several independent power supplies are supported, such as analog independent power inputs for ADC, DAC, OPAMP, and comparators, a 3.3 V dedicated power input for USB and up to 14 I/Os, which can be independently supplied as low as 1.08 V. VBAT input allows backup of RTC and backup of registers.