Overview
The STM32L051R8T7 is a member of the STM32L051x8 family of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm® 32-bit Cortex®-M0+ core, operating at a maximum frequency of 32 MHz. It is designed to provide high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The STM32L051R8T7 features a comprehensive set of peripherals, including analog and digital interfaces, timers, and communication interfaces. The device operates from a 1.65 V to 3.6 V power supply and is available in various package options, including the LQFP64 package.
This microcontroller is ideal for applications that demand low power consumption, such as IoT devices, wearable electronics, and other battery-powered systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Power Supply | 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 |
| I/Os | Up to 51 fast I/Os (45 I/Os 5V tolerant) |
| ADC | 12-bit, 1.14 Msps, up to 16 channels |
| Comparators | 2 ultra-low-power comparators |
| Timers | 9 timers including 16-bit, ultra-low-power, and RTC |
| Communication Interfaces | 2x USART, 1x UART (low power), up to 4x SPI, 2x I2C |
| Package | LQFP64 (10x10 mm) |
Key Features
- Ultra-low-power platform: Low power modes including Standby, Stop, and low power run modes.
- High-performance core: Arm® 32-bit Cortex®-M0+ core with MPU.
- Advanced peripherals: 12-bit ADC, ultra-low-power comparators, multiple timers, and a real-time clock.
- Communication interfaces: USART, UART, SPI, I2C, and I2S.
- Power management: Ultra-safe, low-power BOR, POR/PDR, and programmable voltage detector (PVD).
- Development support: Serial wire debug supported and pre-programmed bootloader.
- Environmental robustness: Operating temperature range from -40 to 125 °C.
- ECOPACK2 compliance: All packages are ECOPACK2 compliant.
Applications
The STM32L051R8T7 is suitable for a variety of low-power applications, including:
- Internet of Things (IoT) devices: Smart home devices, wearables, and other connected devices.
- Wearable electronics: Fitness trackers, smartwatches, and health monitoring devices.
- Battery-powered systems: Portable medical devices, industrial sensors, and remote monitoring systems.
- Automotive systems: Low-power automotive applications such as car accessories and monitoring systems.
- Industrial automation: Low-power control and monitoring systems in industrial environments.
Q & A
- What is the core architecture of the STM32L051R8T7?
The STM32L051R8T7 is based on the Arm® 32-bit Cortex®-M0+ core with an integrated Memory Protection Unit (MPU).
- What is the power supply range for the STM32L051R8T7?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the key low-power modes of the STM32L051R8T7?
The device features Standby, Stop, and low power run modes, with current consumption as low as 0.27 µA in Standby mode.
- What types of communication interfaces are available on the STM32L051R8T7?
The device includes USART, UART, SPI, I2C, and I2S communication interfaces.
- What is the maximum frequency of the STM32L051R8T7?
The device can operate up to a maximum frequency of 32 MHz.
- What is the temperature range for the STM32L051R8T7?
The device operates in a temperature range from -40 to 125 °C.
- What types of timers are available on the STM32L051R8T7?
The device includes multiple timers such as 16-bit timers, an ultra-low-power timer, a real-time clock, and watchdog timers.
- Does the STM32L051R8T7 support serial wire debug?
Yes, the device supports serial wire debug for development purposes.
- What is the package type for the STM32L051R8T7?
The device is available in the LQFP64 (10x10 mm) package.
- Is the STM32L051R8T7 ECOPACK2 compliant?
Yes, all packages of the STM32L051R8T7 are ECOPACK2 compliant.
