Overview
The STM32L052K8U3 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 device is designed for applications requiring high power efficiency and advanced peripherals. It features a comprehensive set of power-saving modes, making it ideal for battery-powered devices and other low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ |
| 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 (down to 1.65 V at power down) |
| Temperature Range | -40 °C 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 |
| Clock Sources | Internal and external clock sources including 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, and internal RC oscillators |
| Communication Interfaces | Up to two I2C, two SPIs, one I2S, two USARTs, one low-power UART (LPUART), and crystal-less USB 2.0 |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, two ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | Nine timers including three 16-bit general-purpose timers, one 16-bit ultra-low-power timer, one SysTick, one RTC, and two watchdogs |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- High-performance Arm® Cortex®-M0+ core with MPU
- 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
- Advanced analog features: 12-bit ADC, 12-bit DAC, ultra-low-power comparators, and capacitive sensing channels
- Standard and advanced communication interfaces: USB 2.0, I2C, SPI, I2S, USART, and LPUART
- Real-time clock and backup registers
- Internal voltage adaptation and multiple clock sources
- True RNG and firewall protection
- ECOPACK®2 compliant packages
Applications
- Battery-powered devices and IoT applications
- Industrial automation and control systems
- Consumer electronics requiring low power consumption
- Medical devices and healthcare equipment
- Automotive systems and telematics
- Sensor networks and smart home devices
Q & A
- What is the core architecture of the STM32L052K8U3?
The STM32L052K8U3 is based on the Arm® Cortex®-M0+ 32-bit RISC core.
- What is the maximum frequency of the STM32L052K8U3?
The maximum frequency is up to 32 MHz.
- How much Flash memory does the STM32L052K8U3 have?
The device has up to 64 KB of Flash memory with ECC.
- What are the power-saving modes available on the STM32L052K8U3?
The device features Standby, Stop, and Stop + RTC + 8 KB RAM retention modes.
- What is the temperature range for the STM32L052K8U3?
The operating temperature range is -40 °C to +125 °C.
- What communication interfaces are available on the STM32L052K8U3?
The device includes USB 2.0, I2C, SPI, I2S, USART, and LPUART interfaces.
- Does the STM32L052K8U3 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What is the package type for the STM32L052K8U3?
The package type is UFQFPN 32 5x5x0.55 mm.
- Is the STM32L052K8U3 RoHS compliant?
Yes, the device is RoHS compliant and ECOPACK®2 certified.
- What are some typical applications for the STM32L052K8U3?
Typical applications include battery-powered devices, industrial automation, consumer electronics, medical devices, and automotive systems.
