Overview
The STM32L071KBU6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L071xx family. It incorporates the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This MCU is designed for high power efficiency and features a wide range of performance options, making it suitable for a variety of low-power applications.
The device includes high-speed embedded memories such as up to 128 Kbytes of Flash program memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM. It also features an extensive range of enhanced I/Os and peripherals, including several timers, comparators, and communication interfaces like I2C, SPI, USART, and a low-power UART.
Key Specifications
| Parameter | Value |
|---|---|
| Core | Arm Cortex-M0+ 32-bit RISC |
| Operating Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Flash Memory | Up to 128 Kbytes |
| RAM | 20 Kbytes |
| EEPROM | 6 Kbytes |
| ADC | 12-bit, up to 16 channels |
| Comparators | 2 ultra-low-power comparators |
| Timers | 11 timers including 16-bit and basic timers, LPTIM, SysTick, and RTC |
| Communication Interfaces | Up to 3 I2Cs, 2 SPIs, 4 USARTs, 1 low-power UART |
| Package | UFQFPN-32 (5x5 mm) |
Key Features
- Ultra-low-power platform with multiple low-power modes: Standby (0.29 µA), Stop (0.43 µA), and Stop with RTC and RAM retention (0.86 µA)
- High-speed embedded memories: up to 128 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM
- Extensive range of enhanced I/Os and peripherals, including ADC, comparators, timers, and communication interfaces
- Real-time clock (RTC) and backup registers that remain powered in Standby mode
- Support for various clock sources, including crystal oscillators and internal RC oscillators
- Pre-programmed bootloader supporting USART, I2C, and SPI
- Serial wire debug support for development
Applications
The STM32L071KBU6 is suitable for a wide range of low-power applications, including:
- IoT devices and smart sensors
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics requiring low power consumption
- Automotive systems where low power is critical
Q & A
- What is the core architecture of the STM32L071KBU6?
The STM32L071KBU6 is based on the Arm Cortex-M0+ 32-bit RISC core.
- What is the operating frequency of the STM32L071KBU6?
The operating frequency is up to 32 MHz.
- What is the power supply range for the STM32L071KBU6?
The power supply range is from 1.65 V to 3.6 V.
- What are the key low-power modes of the STM32L071KBU6?
The key low-power modes include Standby (0.29 µA), Stop (0.43 µA), and Stop with RTC and RAM retention (0.86 µA).
- What types of memory does the STM32L071KBU6 have?
The device has up to 128 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- What communication interfaces are available on the STM32L071KBU6?
The device supports up to 3 I2Cs, 2 SPIs, 4 USARTs, and 1 low-power UART.
- Does the STM32L071KBU6 have a real-time clock (RTC)?
Yes, it includes an RTC and backup registers that remain powered in Standby mode.
- What is the package type of the STM32L071KBU6?
The package type is UFQFPN-32 (5x5 mm).
- What are some typical applications for the STM32L071KBU6?
Typical applications include IoT devices, industrial automation, medical devices, consumer electronics, and automotive systems.
- Does the STM32L071KBU6 support serial wire debug?
Yes, it supports serial wire debug for development purposes.
- What is the temperature range for the STM32L071KBU6?
The temperature range is from -40 to 125 °C.
