Overview
The STM32L051K8U6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It features the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This microcontroller is designed for high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The device includes high-speed embedded memories such as 64 Kbytes of Flash program memory, 8 Kbytes of SRAM, and 2 Kbytes of data EEPROM, all with error correction code (ECC). It also includes a memory protection unit (MPU) and an extensive range of enhanced I/Os and peripherals.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M0+ |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 Kbytes with ECC |
| SRAM | 8 Kbytes |
| Data EEPROM | 2 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Operating Temperature | -40 to 125 °C |
| Low-Power Modes | Standby: 0.27 µA, Stop: 0.4 µA, Stop + RTC + RAM retention: 0.8 µA |
| Timers | 9 timers including 16-bit and ultra-low-power timers |
| Communication Interfaces | 2x USART, 1x UART, 1x SPI, 2x I2C |
| Analog Peripherals | 12-bit ADC up to 16 channels, 2x ultra-low-power comparators |
| Package | UFQFPN32 (5x5 mm) |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, and Stop + RTC + RAM retention)
- High-speed embedded memories including Flash, SRAM, and data EEPROM with ECC
- Memory protection unit (MPU) for enhanced security
- Extensive range of enhanced I/Os and peripherals
- Rich analog peripherals including 12-bit ADC and ultra-low-power comparators
- Multiple communication interfaces such as USART, UART, SPI, and I2C
- Internal voltage adaptation and several clock sources including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader supporting USART and SPI
- Serial wire debug supported for development
Applications
- IoT devices requiring low power consumption
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics such as smart home devices and wearables
- Automotive systems where low power and high reliability are crucial
Q & A
- What is the core architecture of the STM32L051K8U6?
The core architecture is based on the Arm 32-bit Cortex-M0+ RISC core.
- What is the maximum operating frequency of the STM32L051K8U6?
The maximum operating frequency is up to 32 MHz.
- What are the power supply and operating temperature ranges of the STM32L051K8U6?
The power supply range is 1.65 V to 3.6 V, and the operating temperature range is -40 to 125 °C.
- What are the low-power modes available in the STM32L051K8U6?
The device supports Standby, Stop, and Stop + RTC + RAM retention modes with current consumptions of 0.27 µA, 0.4 µA, and 0.8 µA respectively.
- What types of timers are available in the STM32L051K8U6?
The device includes 9 timers, including 16-bit and ultra-low-power timers.
- What communication interfaces does the STM32L051K8U6 support?
The device supports 2x USART, 1x UART, 1x SPI, and 2x I2C interfaces.
- What analog peripherals are included in the STM32L051K8U6?
The device includes a 12-bit ADC with up to 16 channels and 2x ultra-low-power comparators.
- What is the package type of the STM32L051K8U6?
The package type is UFQFPN32 (5x5 mm).
- Does the STM32L051K8U6 support serial wire debug?
Yes, the device supports serial wire debug for development purposes.
- What is the purpose of the memory protection unit (MPU) in the STM32L051K8U6?
The MPU enhances security by providing memory protection.
