Overview
The STM32L052C8T6D 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 device is designed for high power efficiency and features a wide range of internal and external clock sources, internal voltage adaptation, and several low-power modes. The STM32L052C8T6D includes 64 KB of Flash memory, 8 KB of RAM, and 2 KB of data EEPROM, along with a 20-byte backup register and sector protection against R/W operations.
The microcontroller supports various communication interfaces such as USB 2.0 crystal-less, USART, SPI, I2C, and a low-power UART. It also features rich analog peripherals, including a 12-bit ADC, a 12-bit DAC, ultra-low-power comparators, and up to 24 capacitive sensing channels. The device operates from a 1.65 to 3.6 V power supply and is available in the -40 to +125 °C temperature range.
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 |
| Temperature Range | -40 to +125 °C |
| Low-Power Modes | Standby: 0.27 μA, Stop: 0.4 μA, Stop + RTC + RAM: 0.8 μA |
| Run Mode Current | 88 μA/MHz |
| Wakeup Time | 3.5 μs from RAM, 5 μs from Flash |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal RC oscillators |
| Communication Interfaces | USB 2.0 crystal-less, USART, SPI, I2C, low-power UART |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, ultra-low-power comparators, capacitive sensing channels |
| Timers | 9 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Package | LQFP 48 7x7x1.4 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, Stop + RTC + RAM)
- High-performance Arm® Cortex®-M0+ core with MPU
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, ultra-low-power comparators, and capacitive sensing channels
- Extensive range of communication interfaces: USB 2.0 crystal-less, USART, SPI, I2C, low-power UART
- Multiple clock sources: crystal oscillators, internal RC oscillators, and PLL for CPU clock
- Pre-programmed bootloader and serial wire debug support
- Up to 51 fast I/Os (45 I/Os 5V tolerant)
- Ultra-safe, low-power BOR (brownout reset) and programmable voltage detector (PVD)
- True RNG and firewall protection
- All packages are ECOPACK2 compliant
Applications
The STM32L052C8T6D is suitable for a wide range of applications that require low power consumption and high performance. These include:
- IoT devices and smart home appliances
- Wearable devices and health monitors
- Industrial automation and control systems
- Automotive systems requiring low power and high reliability
- Consumer electronics such as smart meters and energy management systems
Q & A
- What is the core architecture of the STM32L052C8T6D?
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 STM32L052C8T6D?
The maximum frequency is up to 32 MHz.
- What are the power supply and temperature ranges of the STM32L052C8T6D?
The power supply range is 1.65 V to 3.6 V, and the temperature range is -40 to +125 °C.
- What are the low-power modes available in the STM32L052C8T6D?
The device supports Standby, Stop, and Stop + RTC + RAM low-power modes.
- What communication interfaces are supported by the STM32L052C8T6D?
The device supports USB 2.0 crystal-less, USART, SPI, I2C, and a low-power UART.
- What analog peripherals are available on the STM32L052C8T6D?
The device includes a 12-bit ADC, a 12-bit DAC, ultra-low-power comparators, and up to 24 capacitive sensing channels.
- How many timers does the STM32L052C8T6D have?
The device features 9 timers, including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs.
- What is the package type of the STM32L052C8T6D?
The package type is LQFP 48 7x7x1.4 mm.
- Does the STM32L052C8T6D support debug and development tools?
Yes, it supports serial wire debug and has a pre-programmed bootloader.
- Is the STM32L052C8T6D environmentally friendly?
Yes, all packages are ECOPACK2 compliant.
