Overview
The STM32L051K8U6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It is based on the Arm Cortex-M0+ core and is designed for applications requiring low power consumption and high performance. This MCU features a comprehensive set of peripherals and interfaces, making it suitable for a wide range of applications, including IoT devices, smart home appliances, and industrial automation.
Key Specifications
| Specification | Value |
|---|---|
| Core | Arm 32-bit Cortex-M0+ |
| Flash Memory | Up to 64 Kbytes with ECC |
| SRAM | 8 Kbytes |
| EEPROM | 2 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Operating Temperature | -40°C to 125°C |
| Standby Mode Current | 0.27 µA (2 wakeup pins) |
| Stop Mode Current | 0.4 µA (16 wakeup lines) |
| Run Mode Current | 88 µA/MHz |
| Wakeup Time | 3.5 µs (from RAM), 5 µs (from Flash) |
| ADC | 12-bit, 1.14 Msps, up to 16 channels |
| Comparators | 2 ultra-low-power comparators |
| Timers | 9 timers including 16-bit and ultra-low-power timers, RTC, and watchdogs |
| Communication Interfaces | 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
| I/Os | Up to 51 fast I/Os (45 I/Os 5V tolerant) |
Key Features
- Ultra-low-power platform: Optimized for low power consumption with various sleep modes and low current in active mode.
- Rich Analog Peripherals: Includes a 12-bit ADC with up to 16 channels, and two ultra-low-power comparators.
- Multiple Communication Interfaces: Supports USART, UART, SPI, and I2C, facilitating diverse communication needs.
- Advanced Timers and Clocks: Features multiple timers including a real-time clock (RTC) and various clock sources like crystal oscillators and internal RC oscillators.
- Development Support: Includes pre-programmed bootloader and serial wire debug support for ease of development.
- Reset and Supply Management: Ultra-safe low-power BOR, POR/PDR, and programmable voltage detector (PVD) for robust operation.
Applications
- Internet of Things (IoT) Devices: Suitable for IoT applications requiring low power and high performance.
- Smart Home Appliances: Ideal for smart home devices that need to operate efficiently with minimal power consumption.
- Industrial Automation: Can be used in industrial automation systems where low power and reliability are crucial.
- Wearable Devices: Appropriate for wearable devices that require long battery life and compact design.
- Medical Devices: Suitable for medical devices that need low power consumption and high reliability.
Q & A
- What is the core architecture of the STM32L051K8U6TR?
The STM32L051K8U6TR is based on the Arm 32-bit Cortex-M0+ core.
- What is the maximum flash memory available on this MCU?
The maximum flash memory available is up to 64 Kbytes with ECC.
- What is the operating temperature range of the STM32L051K8U6TR?
The operating temperature range is from -40°C to 125°C.
- What are the power consumption characteristics of this MCU in standby mode?
In standby mode, the current consumption is 0.27 µA with 2 wakeup pins.
- Does the STM32L051K8U6TR support multiple communication interfaces?
Yes, it supports USART, UART, SPI, and I2C interfaces.
- What types of timers are available on this MCU?
The MCU features 9 timers including 16-bit and ultra-low-power timers, RTC, and watchdogs.
- Is the STM32L051K8U6TR suitable for IoT applications?
Yes, it is highly suitable for IoT applications due to its low power consumption and high performance.
- What is the maximum speed of the SPI interface on this MCU?
The SPI interface can operate up to 16 Mbits/s.
- Does the STM32L051K8U6TR have built-in ADC and comparators?
Yes, it includes a 12-bit ADC with up to 16 channels and two ultra-low-power comparators.
- What development tools are supported by the STM32L051K8U6TR?
The MCU supports pre-programmed bootloader and serial wire debug for development.
