Overview
The STM32L051R8H6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L051x8 series. It features the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a maximum frequency of 32 MHz. This device is designed for applications requiring high power efficiency and a wide range of performance capabilities.
The STM32L051R8H6TR includes a comprehensive set of peripherals and interfaces, such as analog features, timers, and communication interfaces, making it suitable for various low-power applications. The device operates within a temperature range of -40 to 125 °C and supports multiple power-saving modes.
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 (down to 1.65 V at power down) |
| 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) |
| 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 | Up to 2 I2C, 2 SPI, 1 I2S, 2 USART, 1 low-power UART |
| Timers | 9 timers including 16-bit timers, ultra-low-power timer, SysTick, RTC, and 2 watchdogs |
| Package | TFBGA 64 5x5x1.2 P 0.5 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes (Standby, Stop, etc.)
- High-speed embedded memories: up to 64 Kbytes of Flash, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM
- Rich analog peripherals: 12-bit ADC with hardware oversampling, 2 ultra-low-power comparators
- Extensive range of enhanced I/Os and peripherals
- 7-channel DMA controller supporting ADC, SPI, I2C, USART, Timers
- CRC calculation unit and 96-bit unique ID
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Pre-programmed bootloader and serial wire debug support
Applications
The STM32L051R8H6TR 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 with power efficiency requirements
Q & A
- What is the core architecture of the STM32L051R8H6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+ with an MPU.
- What is the maximum operating frequency of the STM32L051R8H6TR?
The maximum operating frequency is up to 32 MHz.
- What is the power supply range for the STM32L051R8H6TR?
The power supply range is from 1.65 V to 3.6 V (down to 1.65 V at power down).
- What types of memory are available on the STM32L051R8H6TR?
The device includes up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- What are the key analog peripherals of the STM32L051R8H6TR?
The key analog peripherals include a 12-bit ADC with hardware oversampling and 2 ultra-low-power comparators.
- What communication interfaces are supported by the STM32L051R8H6TR?
The device supports up to 2 I2C, 2 SPI, 1 I2S, 2 USART, and 1 low-power UART.
- What are the power-saving modes available on the STM32L051R8H6TR?
The device features multiple power-saving modes including Standby, Stop, and others.
- What is the package type for the STM32L051R8H6TR?
The package type is TFBGA 64 5x5x1.2 P 0.5 mm.
- Is the STM32L051R8H6TR RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
- What is the temperature range for the STM32L051R8H6TR?
The temperature range is from -40 to 125 °C.
