Overview
The STM32L071K8U6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It incorporates the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This microcontroller is designed to provide high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The device features a comprehensive set of peripherals, including high-speed embedded memories, extensive I/Os, and advanced communication interfaces. It operates within a voltage range of 1.65 V to 3.6 V and is available in various package options, including the 32-pin UFQFPN package.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Operating Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40°C to 125°C |
| Flash Memory | Up to 64 Kbytes |
| RAM | Up to 20 Kbytes |
| Data EEPROM | Up to 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| ADC | 12-bit ADC with hardware oversampling, up to 16 channels |
| Comparators | 2 ultra-low-power comparators |
| Timers | 11 timers including 4 general-purpose 16-bit timers, 1 low-power timer, 1 RTC, and 2 watchdogs |
| Communication Interfaces | Up to 3 I2Cs, 2 SPIs, 1 I2S, 4 USARTs, 1 low-power UART (LPUART) |
| Package | 32-pin UFQFPN |
Key Features
- Ultra-low-power platform: Offers several low-power modes, including Standby, Stop, and Sleep modes, with low current consumption (e.g., 0.29 µA in Standby mode with 3 wakeup pins).
- High-performance core: Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU) and up to 32 MHz operating frequency.
- Advanced peripherals: Includes a 12-bit ADC, ultra-low-power comparators, multiple timers, and a real-time clock (RTC).
- Extensive communication interfaces: Supports up to three I2Cs, two SPIs, one I2S, four USARTs, and a low-power UART (LPUART).
- High-speed embedded memories: Up to 64 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM with ECC.
- Power management: Features ultra-safe, low-power BOR (brownout reset), ultra-low-power POR/PDR, and programmable voltage detector (PVD).
- Development support: Includes serial wire debug support and a pre-programmed bootloader.
Applications
The STM32L071K8U6 is suitable for a variety of applications that require low power consumption and high performance. These include:
- Industrial automation: For control and monitoring systems that need to operate efficiently over long periods.
- IoT devices: Ideal for Internet of Things applications where power efficiency is crucial.
- Medical devices: For medical equipment that requires reliable and low-power operation.
- Consumer electronics: Suitable for battery-powered devices such as wearables, smart home devices, and other portable electronics.
- Automotive systems: Can be used in automotive applications where low power consumption and reliability are essential.
Q & A
- What is the core architecture of the STM32L071K8U6?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a memory protection unit (MPU).
- What is the operating voltage range of the STM32L071K8U6?
The operating voltage range is from 1.65 V to 3.6 V.
- What are the different low-power modes available in the STM32L071K8U6?
The device supports several low-power modes, including Standby, Stop, and Sleep modes).
- What types of communication interfaces are supported by the STM32L071K8U6?
The device supports up to three I2Cs, two SPIs, one I2S, four USARTs, and a low-power UART (LPUART)).
- What is the maximum operating frequency of the STM32L071K8U6?
The maximum operating frequency is up to 32 MHz).
- What is the temperature range for the STM32L071K8U6?
The operating temperature range is from -40°C to 125°C).
- What types of timers are available in the STM32L071K8U6?
The device includes 11 timers, including 4 general-purpose 16-bit timers, 1 low-power timer, 1 RTC, and 2 watchdogs).
- Does the STM32L071K8U6 support any analog peripherals?
Yes, it includes a 12-bit ADC with hardware oversampling and two ultra-low-power comparators).
- What is the package type for the STM32L071K8U6?
The device is available in a 32-pin UFQFPN package).
- Is the STM32L071K8U6 RoHS compliant?
Yes, the device is RoHS compliant and comes in an Ecopack2 package).
