Overview
The STM32L052C8T7 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L052x8 series. It integrates the 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 enhanced I/Os and peripherals. It includes high-speed embedded memories, extensive analog features, and multiple communication interfaces, making it suitable for a variety of low-power applications.
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 |
| Low-Power Modes | Standby: 0.27 μA, Stop: 0.4 μA, Stop + RTC + RAM retention: 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 16 MHz RC, internal 37 kHz RC, internal 65 kHz to 4.2 MHz RC |
| Communication Interfaces | USB 2.0 crystal-less, 2x USART, 1x LPUART, up to 4x SPI, 2x I2C, 1x I2S |
| Analog Peripherals | 12-bit ADC, 12-bit DAC, 2x ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 9 timers including 16-bit, ultra-low-power timer, SysTick, RTC, and watchdogs |
| Package | LQFP 48 7x7x1.4 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: 64 KB Flash, 8 KB RAM, 2 KB data EEPROM.
- Extensive range of enhanced I/Os and peripherals.
- Rich analog peripherals: 12-bit ADC, 12-bit DAC, ultra-low-power comparators.
- Up to 24 capacitive sensing channels for touch sensing functionality.
- Multiple communication interfaces: USB 2.0 crystal-less, USART, SPI, I2C, I2S.
- Real-time clock and backup registers.
- True RNG and firewall protection.
- All packages are ECOPACK2 compliant.
Applications
The STM32L052C8T7 is suitable for a wide range of low-power applications, including:
- IoT devices and smart home appliances.
- Wearable devices and health monitors.
- Industrial automation and control systems.
- Automotive systems requiring low power consumption.
- Consumer electronics such as remote controls and gaming devices.
Q & A
- What is the core architecture of the STM32L052C8T7?
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 STM32L052C8T7?
The maximum frequency is up to 32 MHz. - What are the power supply voltage ranges for the STM32L052C8T7?
The device operates from 1.65 V to 3.6 V. - What are the low-power modes available on the STM32L052C8T7?
The device features Standby, Stop, and Stop + RTC + RAM retention modes. - What is the current consumption in Run mode?
The current consumption is 88 μA/MHz. - What are the wakeup times from RAM and Flash?
The wakeup times are 3.5 μs from RAM and 5 μs from Flash. - What communication interfaces are available on the STM32L052C8T7?
The device includes USB 2.0 crystal-less, USART, LPUART, SPI, I2C, and I2S interfaces. - What analog peripherals are included in the STM32L052C8T7?
The device features a 12-bit ADC, a 12-bit DAC, and ultra-low-power comparators. - How many capacitive sensing channels does the STM32L052C8T7 support?
The device supports up to 24 capacitive sensing channels. - What is the package type for the STM32L052C8T7?
The package type is LQFP 48 7x7x1.4 mm.
