Overview
The STM32L052K8U6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It integrates the high-performance Arm® Cortex®-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for applications requiring high power efficiency and features a comprehensive set of peripherals and interfaces. The device includes 64 KB of Flash memory, 8 KB of RAM, and 2 KB of data EEPROM, along with a range of analog and digital peripherals. The ultra-low-power platform supports various power-saving modes, making it suitable for battery-powered devices and other low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 KB with ECC |
| RAM | 8 KB |
| Data EEPROM | 2 KB 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 + 8 KB RAM retention: 0.8 μA |
| Wakeup Time | 3.5 μs from RAM, 5 μs from Flash memory |
| ADC | 12-bit, 1.14 Msps, up to 16 channels |
| DAC | 12-bit, 1 channel with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 9 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-Low Power Consumption: The STM32L052K8U6 features various low-power modes, including Standby, Stop, and low-power timers, making it ideal for battery-powered applications.
- High-Performance Core: The Arm® Cortex®-M0+ core operates at up to 32 MHz and includes a memory protection unit (MPU).
- Rich Peripherals: Includes a 12-bit ADC, a 12-bit DAC, ultra-low-power comparators, multiple timers, and a real-time clock (RTC).
- Advanced Communication Interfaces: Supports USB 2.0 crystal-less, multiple USARTs, UART, SPI, and I2C interfaces.
- Capacitive Sensing: Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- Power Management: Ultra-safe, low-power BOR (brownout reset), ultra-low-power POR/PDR, and programmable voltage detector (PVD).
- Development Support: Serial wire debug supported and pre-programmed bootloader.
Applications
- IoT Devices: Suitable for Internet of Things (IoT) applications requiring low power consumption and high performance.
- Wearable Devices: Ideal for wearable devices such as fitness trackers, smartwatches, and health monitors.
- Industrial Automation: Can be used in industrial automation for low-power control and monitoring systems.
- Consumer Electronics: Applicable in consumer electronics such as remote controls, gaming devices, and other battery-powered gadgets.
- Medical Devices: Suitable for medical devices that require low power consumption and reliable performance.
Q & A
- What is the core architecture of the STM32L052K8U6?
The core architecture is based on the Arm® 32-bit Cortex®-M0+ with a memory protection unit (MPU).
- What is the maximum frequency of the STM32L052K8U6?
The maximum frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L052K8U6?
The power supply voltage ranges from 1.65 V to 3.6 V.
- What are the low-power modes available in the STM32L052K8U6?
The device supports Standby, Stop, and low-power timers, with consumption as low as 0.27 μA in Standby mode.
- What types of communication interfaces does the STM32L052K8U6 support?
The device supports USB 2.0 crystal-less, multiple USARTs, UART, SPI, and I2C interfaces.
- Does the STM32L052K8U6 have capacitive sensing capabilities?
Yes, it supports up to 24 capacitive sensing channels.
- What is the temperature range for the STM32L052K8U6?
The operating temperature range is from -40 to 125 °C.
- What types of timers are available in the STM32L052K8U6?
The device includes 9 timers, including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs.
- Does the STM32L052K8U6 have a real-time clock (RTC)?
Yes, it includes a real-time clock (RTC).
- What is the package type for the STM32L052K8U6?
The package type is UFQFPN 32 5x5x0.55 mm.
