Overview
The STM32L071K8U3 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 for high power efficiency and features a comprehensive set of power-saving modes, making it ideal for a wide range of low-power applications. The device includes high-speed embedded memories, extensive I/Os, and enhanced peripherals, ensuring robust performance and versatility.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ |
| Frequency | Up to 32 MHz |
| Flash Memory | Up to 192 Kbytes with ECC (2 banks with read-while-write capability) |
| RAM | 20 Kbytes |
| Data EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| Supply Voltage | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40°C to +125°C |
| Power Consumption | 0.29 µA in Standby mode, 0.43 µA in Stop mode, 93 µA/MHz in Run mode |
| ADC | 12-bit, up to 16 channels, 1.14 Msps |
| 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 |
| Package | UFQFPN 32 5x5x0.55 mm |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
Key Features
- Ultra-low-power platform: Features multiple low-power modes including Standby, Stop, and Sleep modes to minimize power consumption.
- High-performance core: Arm 32-bit Cortex-M0+ core with a maximum frequency of 32 MHz.
- Advanced peripherals: Includes 12-bit ADC, ultra-low-power comparators, multiple timers, and a real-time clock.
- Extensive communication interfaces: Supports up to three I2Cs, two SPIs, one I2S, four USARTs, and a low-power UART.
- Memory protection unit (MPU): Enhances security and data integrity.
- Backup registers and real-time clock: Ensures data retention in Standby mode.
- Power management: Includes ultra-safe, low-power BOR (brownout reset), ultra-low-power POR/PDR, and programmable voltage detector (PVD).
Applications
- IoT devices: Ideal for Internet of Things applications requiring low power consumption.
- Industrial automation: Suitable for control and monitoring systems in industrial environments.
- Medical devices: Can be used in medical equipment that requires low power and high reliability.
- Consumer electronics: Applicable in various consumer devices such as smart home devices, wearables, and portable electronics.
- Automotive systems: Can be integrated into automotive control units and sensors due to its robust and low-power design.
Q & A
- What is the core architecture of the STM32L071K8U3?
The STM32L071K8U3 is based on the Arm 32-bit Cortex-M0+ core.
- What is the maximum operating frequency of the STM32L071K8U3?
The maximum operating frequency is up to 32 MHz.
- What are the power consumption characteristics of the STM32L071K8U3?
The device consumes 0.29 µA in Standby mode, 0.43 µA in Stop mode, and 93 µA/MHz in Run mode.
- What types of communication interfaces does the STM32L071K8U3 support?
The device supports up to three I2Cs, two SPIs, one I2S, four USARTs, and a low-power UART.
- What is the operating temperature range of the STM32L071K8U3?
The operating temperature range is from -40°C to +125°C.
- What types of timers are available on the STM32L071K8U3?
The device includes 11 timers, including general-purpose timers, a low-power timer, an RTC, and two watchdogs.
- Does the STM32L071K8U3 have any memory protection features?
Yes, it includes a memory protection unit (MPU).
- What is the package type of the STM32L071K8U3?
The device is available in a UFQFPN 32 5x5x0.55 mm package.
- How many I/Os does the STM32L071K8U3 have?
The device has up to 84 fast I/Os (78 I/Os 5V tolerant).
- Is the STM32L071K8U3 suitable for industrial applications?
Yes, it is suitable for industrial automation and control systems due to its robust design and low power consumption.
- Does the STM32L071K8U3 support real-time clock functionality?
Yes, it includes a real-time clock and backup registers that remain powered in Standby mode.
