Overview
The STM32L051K6U6TR 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 low-power applications, offering a wide range of power-saving modes and a comprehensive set of peripherals. It includes high-speed embedded memories such as 64 Kbytes of Flash program memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM with ECC. The device also incorporates a memory protection unit (MPU) and sector protection against R/W operations.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Operating Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 Kbytes with ECC |
| RAM | 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 |
| Package | UFQFPN32 (5x5 mm) |
| Low-Power Modes | Standby: 0.27 µA, Stop: 0.4 µA, Stop + RTC + RAM retention: 0.8 µA |
| Timers | 9 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Communication Interfaces | 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ 32-bit RISC core
- High-speed embedded memories: 64 Kbytes of Flash, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM with ECC
- Extensive range of enhanced I/Os and peripherals
- Analog features: 12-bit ADC, two ultra-low-power comparators, and multiple timers
- Standard and advanced communication interfaces: USART, UART, SPI, I2C, and I2S
- Real-time clock and backup registers
- Ultra-safe, low-power BOR (brownout reset) and programmable voltage detector (PVD)
- Support for serial wire debug and pre-programmed bootloader
Applications
- Low-power IoT devices
- Smart home appliances
- Wearable devices
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Automotive systems where power efficiency is crucial
Q & A
- What is the core architecture of the STM32L051K6U6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a memory protection unit (MPU).
- What is the maximum operating frequency of the STM32L051K6U6TR?
The maximum operating frequency is up to 32 MHz.
- What are the power supply and temperature ranges for the STM32L051K6U6TR?
The power supply range is from 1.65 V to 3.6 V, and the operating temperature range is from -40 to 125 °C.
- What types of memory does the STM32L051K6U6TR have?
The device includes up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM with ECC.
- What are the low-power modes available on the STM32L051K6U6TR?
The device features Standby, Stop, and Stop + RTC + RAM retention modes with current consumptions of 0.27 µA, 0.4 µA, and 0.8 µA respectively.
- What communication interfaces are available on the STM32L051K6U6TR?
The device includes 2x USART, 1x UART (low power), up to 4x SPI, and 2x I2C interfaces.
- Does the STM32L051K6U6TR support real-time clock functionality?
Yes, it includes a real-time clock and backup registers that remain powered in Standby mode.
- What is the package type of the STM32L051K6U6TR?
The package type is UFQFPN32 (5x5 mm).
- Is the STM32L051K6U6TR suitable for industrial applications?
Yes, it is suitable due to its wide temperature range and robust set of peripherals.
- Does the STM32L051K6U6TR support serial wire debug?
Yes, it supports serial wire debug and has a pre-programmed bootloader.
