Overview
The STM32L052K8U3TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L052x6/8 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 high power efficiency and features a comprehensive set of power-saving modes, making it ideal for low-power applications. The device includes a memory protection unit (MPU), high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| 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 (down to 1.65 V at power down) |
| Temperature Range | -40 to +125 °C |
| Clock Speed | Up to 32 MHz |
| 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 |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 2x SPI, 2x I2C, 1x I2S, 1x LPUART |
| Analog Features | 12-bit ADC, 12-bit DAC, 2 ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 9 timers including 16-bit, ultra-low-power timer, RTC, and 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 KB Flash, 8 KB RAM, and 2 KB data EEPROM.
- Extensive range of enhanced I/Os and peripherals.
- Analog features: 12-bit ADC, 12-bit DAC, and ultra-low-power comparators.
- Up to 24 capacitive sensing channels for touch sensing functionality.
- Advanced communication interfaces: USB 2.0 crystal-less, USART, SPI, I2C, I2S, and LPUART.
- Multiple clock sources and internal voltage adaptation.
- Real-time clock and backup registers.
- True RNG and firewall protection.
- All packages are ECOPACK®2 compliant.
Applications
- Low-power IoT devices and wireless sensor networks.
- Portable and battery-powered devices.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Consumer electronics such as smart home devices and wearables.
- Automotive systems where low power and high reliability are crucial.
Q & A
- What is the core architecture of the STM32L052K8U3TR?
The core architecture is based on the Arm® 32-bit Cortex®-M0+ RISC core.
- What is the maximum clock speed of the STM32L052K8U3TR?
The maximum clock speed is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L052K8U3TR?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the low-power modes available in the STM32L052K8U3TR?
The device features Standby, Stop, and Stop + RTC + 8 KB RAM retention modes.
- What analog features are available on the STM32L052K8U3TR?
The device includes a 12-bit ADC, a 12-bit DAC, and two ultra-low-power comparators.
- What communication interfaces are supported by the STM32L052K8U3TR?
The device supports USB 2.0 crystal-less, USART, SPI, I2C, I2S, and LPUART.
- How many capacitive sensing channels does the STM32L052K8U3TR support?
The device supports up to 24 capacitive sensing channels.
- What is the temperature range for the STM32L052K8U3TR?
The device operates in the -40 to +125 °C temperature range.
- What is the package type for the STM32L052K8U3TR?
The device is available in the UFQFPN 32 5x5x0.55 mm package.
- Does the STM32L052K8U3TR support real-time clock functionality?
Yes, the device includes a real-time clock (RTC) and backup registers.
- Is the STM32L052K8U3TR compliant with any specific environmental standards?
Yes, all packages are ECOPACK®2 compliant.
