Overview
The STM32L552RET6 is a microcontroller from the STM32L5 Series by STMicroelectronics, built around the high-performance Arm® Cortex®-M33 32-bit RISC core. This ultra-low-power device operates at frequencies up to 110 MHz and features a single-precision floating-point unit (FPU) and a full set of DSP instructions. It also includes a memory protection unit (MPU) for enhanced security. The microcontroller is equipped with 512 Kbytes of Flash memory and 256 Kbytes of SRAM, along with flexible external memory controllers and an Octo-SPI Flash memories interface. The STM32L552RET6 is designed with a strong focus on security, including secure boot, secure data storage, and protection against tampering and environmental attacks.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M33 |
| Operating Frequency | Up to 110 MHz |
| Flash Memory | 512 Kbytes |
| SRAM | 256 Kbytes |
| Supply Voltage | 1.71 to 3.6 V |
| Operating Temperature | -40 to +85 °C (industrial grade) |
| Package Type | LQFP-64 (10x10x1.4 mm) |
| D/A Converters | 2 x 12-bit (5 Msps) |
| Timers (16-bit) | 9 |
| Timers (32-bit) | 2 |
| UART | 2 |
| SPI | 3 |
| I2C | 4 |
| USB | USB device FS, USB Type-C / USB power delivery controller |
| CAN | 1 x CAN FD |
| Integrated Op-Amps | 2 |
| Comparators | 2 |
Key Features
- Ultra-Low Power Consumption: Designed for low-power applications with a comprehensive set of power-saving modes.
- High-Performance Core: Arm Cortex-M33 core with a single-precision FPU and DSP instructions.
- Security Features: Compliant with Arm’s Trusted Based Security Architecture (TBSA), secure boot, secure data storage, and protection against tampering and environmental attacks.
- Memory and Storage: 512 Kbytes of Flash memory, 256 Kbytes of SRAM, and flexible external memory controllers.
- Analog Peripherals: Two 12-bit ADCs, two operational amplifiers, two DAC channels, and two comparators.
- Communication Interfaces: Multiple I2Cs, SPIs, USARTs, UARTs, SAIs, SDMMC, FDCAN, and USB interfaces.
- Independent Power Supplies: Support for independent power supplies for analog and digital components.
Applications
- Industrial Automation: Suitable for control and monitoring systems due to its robust performance and security features.
- Consumer Electronics: Ideal for devices requiring low power consumption and high performance.
- IoT Devices: Well-suited for Internet of Things applications needing secure and efficient processing.
- Point of Sales (POS) Applications: Meets PCI requirements with its advanced security features.
- Automotive Systems: Can be used in electric vehicles and other automotive applications requiring high-performance and eco-friendly solutions.
Q & A
- What is the core of the STM32L552RET6 microcontroller?
The core is the Arm Cortex-M33 32-bit RISC core.
- What is the maximum operating frequency of the STM32L552RET6?
The maximum operating frequency is up to 110 MHz.
- How much Flash memory and SRAM does the STM32L552RET6 have?
The device has 512 Kbytes of Flash memory and 256 Kbytes of SRAM.
- What are the key security features of the STM32L552RET6?
The device features secure boot, secure data storage, protection against tampering and environmental attacks, and multiple levels of readout protection.
- What are the operating temperature ranges for the STM32L552RET6?
The operating temperature ranges are -40 to +85 °C (industrial grade) and -40 to +125 °C (extended grade).
- What types of communication interfaces does the STM32L552RET6 support?
The device supports multiple I2Cs, SPIs, USARTs, UARTs, SAIs, SDMMC, FDCAN, and USB interfaces.
- Does the STM32L552RET6 support independent power supplies?
Yes, it supports independent power supplies for analog and digital components.
- What is the package type of the STM32L552RET6?
The package type is LQFP-64 (10x10x1.4 mm).
- What are some typical applications for the STM32L552RET6?
Typical applications include industrial automation, consumer electronics, IoT devices, and point of sales (POS) applications.
- Is the STM32L552RET6 RoHS compliant?
Yes, the device is RoHS compliant (Ecopack2).
