Overview
The STM32L052R6H6 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 advanced peripherals. It features a comprehensive set of power-saving modes, making it ideal for low-power applications. The device includes a range of enhanced I/Os and peripherals, such as USB 2.0, multiple timers, ADC, DAC, and communication interfaces like I2C, SPI, and USART.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| Operating Voltage | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Flash Memory | Up to 64 Kbytes with ECC |
| RAM | 8 Kbytes |
| EEPROM | 2 Kbytes with ECC |
| Backup Register | 20 bytes |
| Low-Power Modes | 0.27 μA Standby mode (2 wakeup pins), 0.4 μA Stop mode (16 wakeup lines), 0.8 μA Stop mode + RTC + 8 KB RAM retention |
| Current Consumption in Run Mode | 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 multispeed low-power RC |
| Communication Interfaces | USB 2.0 crystal-less, up to 2 I2C, up to 4 SPI, 2 USART, 1 LPUART, 1 I2S |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, 2 ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 9 timers including general-purpose timers, low-power timer, SysTick, RTC, and watchdogs |
| Package | TFBGA 64 5x5x1.2 P 0.5 mm |
Key Features
- Ultra-Low Power Consumption: Features Standby, Stop, and low-power modes with current consumption as low as 0.27 μA, 0.4 μA, and 0.8 μA respectively.
- High-Performance Core: Arm® 32-bit Cortex®-M0+ core operating at up to 32 MHz.
- Advanced Peripherals: Includes 12-bit ADC, 12-bit DAC, ultra-low-power comparators, and up to 24 capacitive sensing channels.
- Communication Interfaces: Supports USB 2.0 crystal-less, I2C, SPI, USART, LPUART, and I2S.
- Memory and Backup: Up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, 2 Kbytes of EEPROM, and a 20-byte backup register.
- Clock Sources and Management: Multiple clock sources including crystal oscillators, internal RC oscillators, and PLL for CPU clock.
- Development Support: Serial wire debug supported and pre-programmed bootloader.
- Security Features: Includes true RNG, firewall protection, and a CRC calculation unit.
Applications
- IoT Devices: Ideal for Internet of Things applications requiring low power consumption and advanced peripherals.
- Industrial Automation: Suitable for industrial control systems, sensors, and actuators.
- Consumer Electronics: Used in various consumer electronics such as smart home devices, wearables, and portable electronics.
- Medical Devices: Applicable in medical devices that require low power and high reliability.
- Automotive Systems: Can be used in automotive systems for control and monitoring applications.
Q & A
- What is the operating voltage range of the STM32L052R6H6?
The operating voltage range is from 1.65 V to 3.6 V.
- What is the maximum temperature range for the STM32L052R6H6?
The temperature range is from -40 to 125 °C.
- What are the low-power modes available in the STM32L052R6H6?
The device features Standby, Stop, and low-power modes with current consumption as low as 0.27 μA, 0.4 μA, and 0.8 μA respectively.
- What is the maximum frequency of the Arm® Cortex®-M0+ core?
The core operates at a frequency of up to 32 MHz.
- What types of communication interfaces are supported by the STM32L052R6H6?
The device supports USB 2.0 crystal-less, I2C, SPI, USART, LPUART, and I2S.
- What is the capacity of the Flash memory in the STM32L052R6H6?
The device has up to 64 Kbytes of Flash memory with ECC.
- Does the STM32L052R6H6 support capacitive sensing?
Yes, it supports up to 24 capacitive sensing channels.
- What security features are included in the STM32L052R6H6?
The device includes true RNG, firewall protection, and a CRC calculation unit.
- What development tools are supported by the STM32L052R6H6?
The device supports serial wire debug and has a pre-programmed bootloader.
- What is the package type of the STM32L052R6H6?
The device is available in TFBGA 64 5x5x1.2 P 0.5 mm package.
