Overview
The STM32L051K8U7 is a member of the STM32L051x6/8 family of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. It is designed to provide high power efficiency and a wide range of performance, making it suitable for various low-power applications.
The microcontroller features a comprehensive set of peripherals, including high-speed embedded memories, extensive I/Os, and advanced communication interfaces. The STM32L051K8U7 is available in a UFQFPN 32 package, making it compact and versatile for different design needs.
Key Specifications
| Specification | Details |
|---|---|
| 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 |
| 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 two I2C, two SPIs, one I2S, two USARTs, one low-power UART (LPUART) |
| Analog Features | 12-bit ADC, two ultra-low-power comparators, multiple timers |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform: Optimized for low-power consumption with various power-saving modes.
- High-performance core: Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- High-speed embedded memories: Up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- Advanced communication interfaces: Includes up to two I2C, two SPIs, one I2S, two USARTs, and a low-power UART.
- Rich analog peripherals: Features a 12-bit ADC, two ultra-low-power comparators, and multiple timers.
- Clock sources and reset management: Includes various internal and external clock sources, ultra-safe low-power BOR, and programmable voltage detector (PVD).
- Development support: Supports serial wire debug and has a pre-programmed bootloader.
Applications
- Industrial automation: Suitable for low-power industrial control systems and automation.
- IoT devices: Ideal for Internet of Things applications requiring low power consumption.
- Medical devices: Can be used in medical devices that need high performance and low power.
- Consumer electronics: Applicable in various consumer electronics that require efficient power management.
- Smart home devices: Suitable for smart home devices that need to operate with minimal power consumption.
Q & A
- What is the core architecture of the STM32L051K8U7?
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 STM32L051K8U7?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L051K8U7?
The power supply voltage ranges from 1.65 V to 3.6 V.
- What are the low-power modes available in the STM32L051K8U7?
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 is the wakeup time from RAM and Flash memory?
The wakeup time is 3.5 µs from RAM and 5 µs from Flash memory.
- What types of communication interfaces are available on the STM32L051K8U7?
The device includes up to two I2C, two SPIs, one I2S, two USARTs, and a low-power UART (LPUART).
- What are the key analog features of the STM32L051K8U7?
The device features a 12-bit ADC, two ultra-low-power comparators, and multiple timers.
- What is the package type of the STM32L051K8U7?
The package type is UFQFPN 32 5x5x0.55 mm.
- Does the STM32L051K8U7 support serial wire debug?
Yes, the device supports serial wire debug.
- Is there a pre-programmed bootloader available on the STM32L051K8U7?
Yes, the device has a pre-programmed bootloader.
