Overview
The STM32L552VET6 is a member of the STM32L5 Series of ultra-low-power microcontrollers from STMicroelectronics. It is based on the high-performance Arm® Cortex®-M33 32-bit RISC core, which includes a single-precision floating-point unit (FPU) and supports DSP instructions. This microcontroller is designed to operate at frequencies up to 110 MHz and features a memory protection unit (MPU) for enhanced security. The device is equipped with 512 Kbytes of Flash memory and 256 Kbytes of SRAM, along with various peripherals and communication interfaces, making it suitable for a wide range of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M33 CPU with FPU and TrustZone® |
| Frequency | Up to 110 MHz |
| Memory | 512 Kbytes Flash, 256 Kbytes SRAM |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/125 °C |
| Timers | Up to 16 timers (2 x 32-bit, 9 x 16-bit, 3 x low-power 16-bit) |
| Communication Interfaces | 4 x I2C, 3 x SPI, 3 x USART, 2 x SAIs, 1 x SDMMC, 1 x FDCAN, USB Type-C / USB power delivery controller |
| Analog Peripherals | 2 x 12-bit ADC, 2 x 12-bit DAC, 2 x operational amplifiers, 2 x comparators |
| Security Features | HASH hardware accelerator, true random number generator, secure boot, secure data storage |
| Package | LQFP 100 14x14x1.4 mm |
Key Features
- Ultra-low-power with FlexPowerControl, including multiple power-saving modes (VBAT mode, Shutdown mode, Standby mode, Stop 2 mode)
- Batch acquisition mode (BAM) and fast wakeup from Stop mode (5 µs)
- Embedded regulator (LDO) and SMPS step-down converter for efficient power management
- Comprehensive set of peripherals including timers, watchdogs, and communication interfaces
- Rich analog peripherals with independent supply inputs for ADC, DAC, OPAMPs, and comparators
- Advanced security features compliant with TBSA requirements, including secure boot, secure data storage, and firmware protection
- Support for capacitive sensing with up to 22 channels
- Development support with serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ (ETM)
Applications
The STM32L552VET6 is suitable for a variety of applications requiring low power consumption and high performance. These include:
- IoT devices and smart home applications
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Point of sale (POS) systems and secure transaction devices
- Automotive systems, especially those requiring low power and high security
- Wearable devices and portable electronics
Q & A
- What is the core architecture of the STM32L552VET6?
The STM32L552VET6 is based on the Arm® 32-bit Cortex®-M33 CPU with a single-precision floating-point unit (FPU) and TrustZone® technology.
- What is the maximum operating frequency of the STM32L552VET6?
The maximum operating frequency is up to 110 MHz.
- What are the power supply and temperature ranges for the STM32L552VET6?
The power supply range is 1.71 V to 3.6 V, and the temperature range is -40 °C to 85/125 °C.
- What security features are included in the STM32L552VET6?
The device includes a HASH hardware accelerator, true random number generator, secure boot, secure data storage, and firmware protection mechanisms.
- What types of communication interfaces are available on the STM32L552VET6?
The device features 4 x I2C, 3 x SPI, 3 x USART, 2 x SAIs, 1 x SDMMC, 1 x FDCAN, and a USB Type-C / USB power delivery controller.
- What are the key analog peripherals of the STM32L552VET6?
The device includes 2 x 12-bit ADC, 2 x 12-bit DAC, 2 x operational amplifiers, and 2 x comparators.
- How does the STM32L552VET6 manage power consumption?
The device features ultra-low-power modes such as VBAT mode, Shutdown mode, Standby mode, and Stop 2 mode, along with an embedded regulator (LDO) and SMPS step-down converter.
- What development tools are supported by the STM32L552VET6?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ (ETM) for development.
- What is the package type and pin count of the STM32L552VET6?
The device is available in an LQFP 100 package with 100 pins.
- What are some typical applications for the STM32L552VET6?
Typical applications include IoT devices, industrial automation, medical devices, POS systems, automotive systems, and wearable devices.
