Overview
The STM32L071KZT6 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 enhanced I/Os and peripherals. The device is suitable for a variety of low-power applications due to its comprehensive set of power-saving modes and low-power consumption in various operating modes.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Operating 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 |
| 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 + 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) |
| Communication Interfaces | Up to 3 I2Cs, 2 SPIs, 1 I2S, 4 USARTs, 1 low-power UART |
| Timers | 11 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Package | LQFP 32 (7x7x1.4 mm) |
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 MPU, operating up to 32 MHz.
- Enhanced memories: Up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- Analog peripherals: 12-bit ADC with hardware oversampling, ultra-low-power comparators, and multiple timers.
- Communication interfaces: Multiple USARTs, SPIs, I2Cs, and a low-power UART.
- Low-power modes: Standby, Stop, and Stop with RTC and RAM retention, with very low current consumption.
- Reset and supply management: Ultra-safe, low-power BOR, POR/PDR, and programmable voltage detector.
- Clock sources: Various internal and external clock sources, including crystal oscillators and internal RC oscillators.
- Development support: Serial wire debug supported and pre-programmed bootloader.
Applications
The STM32L071KZT6 is suitable for a wide range of applications that require low power consumption, such as:
- IoT devices: Ideal for Internet of Things applications where power efficiency is crucial.
- Wearable devices: Suitable for wearables that need to operate for extended periods on a single charge.
- Industrial automation: Can be used in industrial control systems where low power and reliability are essential.
- Medical devices: Applicable in medical devices that require low power consumption and high reliability.
- Consumer electronics: Used in various consumer electronics where power efficiency is a key factor.
Q & A
- What is the core architecture of the STM32L071KZT6?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a Memory Protection Unit (MPU).
- What is the maximum operating frequency of the STM32L071KZT6?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L071KZT6?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the low-power modes available in the STM32L071KZT6?
The device features Standby, Stop, and Stop with RTC and RAM retention modes with very low current consumption.
- What types of communication interfaces are supported by the STM32L071KZT6?
The device supports multiple USARTs, SPIs, I2Cs, and a low-power UART.
- What is the temperature range for the STM32L071KZT6?
The operating temperature range is from -40 to 125 °C.
- What is the package type for the STM32L071KZT6?
The package type is LQFP 32 (7x7x1.4 mm).
- Does the STM32L071KZT6 support serial wire debug?
Yes, the device supports serial wire debug.
- What are the key analog peripherals of the STM32L071KZT6?
The device features a 12-bit ADC, ultra-low-power comparators, and multiple timers.
- Is the STM32L071KZT6 RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
