Overview
The STM32L071KBT6 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 memory protection unit (MPU), high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals. The device is particularly suited for applications requiring low power consumption and high performance.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| 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 |
| Power Supply | 1.65 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40 to +125 °C |
| Low-Power Modes | Standby: 0.29 µA (3 wakeup pins), Stop: 0.43 µA (16 wakeup lines), Stop + RTC + 20-Kbyte RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC Conversion | 41 µA at 10 ksps |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| Clock Sources | Internal and external clock sources including crystal oscillator, internal RC oscillators, and PLL for CPU clock |
| Communication Interfaces | Up to three I2Cs, two SPIs, one I2S, four USARTs, one low-power UART (LPUART) |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- High-performance Arm Cortex-M0+ core with MPU
- High-speed embedded memories: up to 192 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM
- Rich analog peripherals: 12-bit ADC with hardware oversampling, two ultra-low-power comparators
- Extensive range of timers: four general-purpose 16-bit timers, two basic timers, one low-power timer (LPTIM), one RTC, and one SysTick
- Advanced communication interfaces: up to three I2Cs, two SPIs, one I2S, four USARTs, and one low-power UART
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
- Internal low-power RC oscillators and PLL for CPU clock
- Serial wire debug supported
- CRC calculation unit and 96-bit unique ID
Applications
The STM32L071KBT6 is suitable for a variety of low-power applications, including:
- Gas and water meters
- Industrial sensors
- Healthcare and fitness equipment
- Remote control and user interface devices
- PC peripherals
- Gaming devices
- GPS equipment
- Alarm systems
- Wired and wireless sensors
- Video intercom systems
Q & A
- What is the core architecture of the STM32L071KBT6?
The STM32L071KBT6 features the Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU). - What is the maximum frequency of the STM32L071KBT6?
The maximum frequency is up to 32 MHz. - What are the memory specifications of the STM32L071KBT6?
The device has up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM. - What is the power supply range of the STM32L071KBT6?
The power supply range is from 1.65 V to 3.6 V. - What are the low-power modes available on the STM32L071KBT6?
The device features Standby, Stop, and Stop + RTC + 20-Kbyte RAM retention modes, with currents as low as 0.29 µA, 0.43 µA, and 0.86 µA respectively. - What analog peripherals are available on the STM32L071KBT6?
The device includes a 12-bit ADC with hardware oversampling and two ultra-low-power comparators. - What communication interfaces does the STM32L071KBT6 support?
The device supports up to three I2Cs, two SPIs, one I2S, four USARTs, and one low-power UART (LPUART). - What are the clock sources available on the STM32L071KBT6?
The device includes internal and external clock sources such as crystal oscillators, internal RC oscillators, and a PLL for the CPU clock. - Is serial wire debug supported on the STM32L071KBT6?
Yes, serial wire debug is supported. - What is the temperature range of the STM32L071KBT6?
The operating temperature range is from -40 to +125 °C.
