Overview
The STM32L072KBU6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L072xx family. It integrates the Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This device is designed for high power efficiency and features a wide range of enhanced I/Os and peripherals. The STM32L072KBU6 includes high-speed embedded memories, extensive analog features, and multiple communication interfaces, making it suitable for a variety of low-power applications.
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 (down to 1.65 V at power down) |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | 0.29 µA Standby mode, 0.43 µA Stop mode, 0.86 µA Stop mode + RTC + 20-Kbyte RAM retention |
| 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 | USB 2.0 crystal-less, up to 3 I2Cs, 2 SPIs, 1 I2S, 4 USARTs, 1 low-power UART |
| Analog Peripherals | 12-bit ADC, 2 x 12-bit DACs, 2 ultra-low-power comparators, up to 24 capacitive sensing channels |
| Timers | 11 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform: Offers various low-power modes such as Standby, Stop, and low-power Run mode.
- High-performance core: Arm 32-bit Cortex-M0+ with a memory protection unit (MPU) and up to 32 MHz frequency.
- Rich analog peripherals: Includes a 12-bit ADC, two 12-bit DACs, two ultra-low-power comparators, and up to 24 capacitive sensing channels.
- Extensive communication interfaces: Supports USB 2.0 crystal-less, multiple USARTs, SPIs, I2Cs, and an I2S interface.
- High-speed embedded memories: Up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- Multiple clock sources: Includes crystal oscillators, internal RC oscillators, and a PLL for CPU clock.
- Development support: Features serial wire debug support and a pre-programmed bootloader.
- Environmental robustness: Operates in a temperature range of -40 to 125 °C and is RoHS compliant.
Applications
- IoT Devices: Suitable for Internet of Things applications requiring low power consumption and high performance.
- Industrial Automation: Can be used in industrial control systems, sensors, and actuators due to its robust analog and digital peripherals.
- Consumer Electronics: Ideal for battery-powered devices such as wearables, smart home devices, and portable electronics.
- Medical Devices: Applicable in medical devices that require low power and high reliability, such as portable diagnostic equipment.
- Automotive Systems: Can be integrated into automotive systems for various control and monitoring functions.
Q & A
- What is the core architecture of the STM32L072KBU6?
The STM32L072KBU6 is based on the Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- What is the operating frequency of the STM32L072KBU6?
The operating frequency can go up to 32 MHz.
- What are the power supply requirements for the STM32L072KBU6?
The device operates from a 1.65 V to 3.6 V power supply.
- What are the low-power modes available in the STM32L072KBU6?
The device features Standby, Stop, and low-power Run modes, with current consumption as low as 0.29 µA in Standby mode.
- What analog peripherals are available on the STM32L072KBU6?
The device includes a 12-bit ADC, two 12-bit DACs, two ultra-low-power comparators, and up to 24 capacitive sensing channels.
- What communication interfaces does the STM32L072KBU6 support?
The device supports USB 2.0 crystal-less, multiple USARTs, SPIs, I2Cs, and an I2S interface.
- What is the memory configuration of the STM32L072KBU6?
The device has up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- What is the temperature range for the STM32L072KBU6?
The device operates in a temperature range of -40 to 125 °C.
- Is the STM32L072KBU6 RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
- What development tools are available for the STM32L072KBU6?
The device supports serial wire debug and comes with a pre-programmed bootloader.
- What are some typical applications for the STM32L072KBU6?
The device is suitable for IoT devices, industrial automation, consumer electronics, medical devices, and automotive systems.
