Overview
The STM32L051K8U7TR is a member of the STM32L051x6/8 family of ultra-low-power microcontrollers from STMicroelectronics. This device is based on the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. It is designed to provide high power efficiency and a wide range of performance, making it suitable for various low-power applications.
The microcontroller features extensive memory options, including up to 64 Kbytes of Flash program memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM. Additionally, it includes a 20-byte backup register and sector protection against R/W operations.
The STM32L051K8U7TR is available in a UFQFPN 32 package and operates within a temperature range of -40 to 125 °C, making it versatile for different environmental conditions.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 64 Kbytes with ECC |
| RAM | 8 Kbytes |
| EEPROM | 2 Kbytes with ECC |
| Backup Register | 20 bytes |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | 0.27 µA Standby, 0.4 µA Stop, 0.8 µA Stop + RTC + RAM retention |
| Wakeup Time | 3.5 µs from RAM, 5 µs from Flash |
| Package | UFQFPN 32 5x5x0.55 mm |
| 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 high-speed and low-power RC oscillators |
Key Features
- Ultra-low-power platform: Optimized for low-power consumption with various power-saving modes.
- High-performance core: Arm 32-bit Cortex-M0+ with a memory protection unit (MPU).
- Extensive memory options: Up to 64 Kbytes of Flash, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- Analog peripherals: 12-bit ADC with hardware oversampling, two ultra-low-power comparators, and multiple timers.
- Communication interfaces: Up to two I2C, two SPIs, one I2S, two USARTs, and a low-power UART.
- Real-time clock and backup registers: RTC with calibration and backup registers that remain powered in Standby mode.
- Reset and supply management: Ultra-safe, low-power BOR with 5 selectable thresholds, ultra-low-power POR/PDR, and programmable voltage detector (PVD).
- Development support: Serial wire debug supported and pre-programmed bootloader.
Applications
- Industrial automation: Suitable for low-power industrial control systems and automation.
- IoT devices: Ideal for Internet of Things applications requiring low power consumption.
- Medical devices: Can be used in medical devices that need to operate on low power.
- Consumer electronics: Applicable in various consumer electronics that require efficient power management.
- Automotive systems: Can be integrated into automotive systems for low-power operations.
Q & A
- What is the core architecture of the STM32L051K8U7TR?
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 STM32L051K8U7TR?
The maximum frequency is up to 32 MHz.
- What are the memory options available on the STM32L051K8U7TR?
It includes up to 64 Kbytes of Flash memory, 8 Kbytes of RAM, and 2 Kbytes of data EEPROM.
- What is the power supply range for the STM32L051K8U7TR?
The power supply range is from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L051K8U7TR?
The device features 0.27 µA Standby mode, 0.4 µA Stop mode, and 0.8 µA Stop mode + RTC + RAM retention.
- What is the temperature range for the STM32L051K8U7TR?
The temperature range is from -40 to 125 °C.
- What types of communication interfaces are available on the STM32L051K8U7TR?
The device includes up to two I2C, two SPIs, one I2S, two USARTs, and a low-power UART.
- Does the STM32L051K8U7TR have a real-time clock?
Yes, it includes a real-time clock with calibration.
- What is the package type for the STM32L051K8U7TR?
The package type is UFQFPN 32 5x5x0.55 mm.
- Is the STM32L051K8U7TR suitable for industrial applications?
Yes, it is suitable for industrial applications due to its low power consumption and robust features.
