Overview
The STM32L052K8T6TR 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, featuring a wide range of internal and external clock sources, internal voltage adaptation, and several low-power modes. The device includes a comprehensive set of peripherals and interfaces, making it suitable for a variety of low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| 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 |
| Low-Power Modes | Standby: 0.27 μA, Stop: 0.4 μA, Stop + RTC + 8 KB RAM retention: 0.8 μA |
| Run Mode Current | 88 μA/MHz |
| Wakeup Time | 3.5 μs from RAM, 5 μs from Flash memory |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 16 MHz RC, internal low-power 37 kHz RC, internal multispeed low-power 65 kHz to 4.2 MHz RC |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C, 1x I2S |
| Timers | 9 timers including 1x 16-bit with up to 4 channels, 2x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC, 2x watchdogs |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, 2 ultra-low-power comparators, up to 24 capacitive sensing channels |
| Package | LQFP 32 7x7x1.4 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, etc.)
- High-performance Arm® Cortex®-M0+ 32-bit RISC core operating at up to 32 MHz
- Rich set of peripherals including 12-bit ADC, 12-bit DAC, ultra-low-power comparators, and capacitive sensing channels
- Advanced communication interfaces: USB 2.0 crystal-less, USART, UART, SPI, I2C, and I2S
- Extensive range of timers and watchdogs
- Internal voltage adaptation and reset/supply management features
- Up to 51 fast I/Os (45 I/Os 5V tolerant)
- ECOPACK®2 compliant packages
Applications
- Low-power IoT devices
- Wearable electronics
- Industrial automation and control systems
- Medical devices requiring low power consumption
- Consumer electronics such as smart home devices and remote controls
- Automotive systems where low power is critical
Q & A
- What is the core architecture of the STM32L052K8T6TR?
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 STM32L052K8T6TR?
The maximum frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L052K8T6TR?
The device operates from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What are the low-power modes available on the STM32L052K8T6TR?
The device features Standby, Stop, and Stop + RTC + 8 KB RAM retention modes.
- What is the current consumption in Run mode?
The current consumption is 88 μA/MHz in Run mode.
- What are the wakeup times from different modes?
The wakeup times are 3.5 μs from RAM and 5 μs from Flash memory.
- What communication interfaces are available on the STM32L052K8T6TR?
The device includes USB 2.0 crystal-less, USART, UART, SPI, I2C, and I2S interfaces.
- What analog peripherals are included in the STM32L052K8T6TR?
The device features a 12-bit ADC, a 12-bit DAC, ultra-low-power comparators, and up to 24 capacitive sensing channels.
- What is the package type for the STM32L052K8T6TR?
The package type is LQFP 32 7x7x1.4 mm.
- Is the STM32L052K8T6TR compliant with any environmental standards?
Yes, it is ECOPACK®2 compliant.
