Overview
The STM32L051K6U6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It incorporates the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for high power efficiency and features a comprehensive set of power-saving modes, making it ideal for low-power applications. The device includes high-speed embedded memories, extensive I/Os, and a range of enhanced peripherals.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| 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 (down to 1.65 V at power down) |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | Standby: 0.27 µA, Stop: 0.4 µA, Stop + RTC + RAM retention: 0.8 µA |
| Wakeup Time | 3.5 µs from RAM, 5 µs from Flash memory |
| I/Os | Up to 51 fast I/Os (45 I/Os 5V tolerant) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal RC oscillators |
| Communication Interfaces | Up to 2 I2C, 2 SPIs, 1 I2S, 2 USARTs, 1 low-power UART |
| Analog Peripherals | 12-bit ADC, 2 ultra-low-power comparators, timers, RTC, SysTick |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- High-performance Arm Cortex-M0+ 32-bit RISC core.
- High-speed embedded memories: up to 64 Kbytes of Flash, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- Extensive range of enhanced I/Os and peripherals.
- Rich analog peripherals including a 12-bit ADC, ultra-low-power comparators, and multiple timers.
- Advanced communication interfaces: I2C, SPI, I2S, USART, and low-power UART.
- Ultra-safe, low-power BOR (brownout reset) and programmable voltage detector (PVD).
- Serial wire debug supported and pre-programmed bootloader.
- All packages are ECOPACK2 compliant.
Applications
The STM32L051K6U6 is suitable for a wide range of low-power applications, including:
- IoT devices and smart sensors.
- Wearable electronics and health monitoring devices.
- Industrial automation and control systems.
- Consumer electronics requiring low power consumption.
- Automotive systems and telematics.
Q & A
- What is the core architecture of the STM32L051K6U6?
The STM32L051K6U6 features an Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- What is the maximum frequency of the STM32L051K6U6?
The maximum frequency is up to 32 MHz.
- What are the memory specifications of the STM32L051K6U6?
It includes up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- What is the power supply range for the STM32L051K6U6?
The power supply range is from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L051K6U6?
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 are the key analog peripherals of the STM32L051K6U6?
The device includes a 12-bit ADC, two ultra-low-power comparators, and multiple timers.
- What communication interfaces are available on the STM32L051K6U6?
The device supports up to two I2C, two SPIs, one I2S, two USARTs, and one low-power UART.
- What is the package type of the STM32L051K6U6?
The package type is UFQFPN 32 5x5x0.55 mm.
- Is the STM32L051K6U6 environmentally friendly?
Yes, all packages are ECOPACK2 compliant.
- What are the typical applications for the STM32L051K6U6?
The device is suitable for IoT devices, wearable electronics, industrial automation, consumer electronics, and automotive systems.
- Does the STM32L051K6U6 support serial wire debug?
Yes, the device supports serial wire debug.
