Overview
The STM32L072KZU6 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 microcontroller is designed for high power efficiency and features a wide range of enhanced I/Os and peripherals. It includes high-speed embedded memories, extensive analog capabilities, and multiple communication interfaces. The device is suitable for a variety of low-power applications, offering several power-saving modes and a comprehensive set of peripherals.
Key Specifications
| Parameter | Specification |
|---|---|
| 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 |
| Temperature Range | -40 to 125 °C |
| Low-Power Modes | Standby: 0.29 µA, Stop: 0.43 µA, Stop + RTC + RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC | 12-bit, up to 16 channels, 1.14 Msps |
| DACs | 2 x 12-bit with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 11 timers including 16-bit and ultra-low-power timers, RTC, and SysTick |
| Communication Interfaces | USB 2.0 crystal-less, 4 USARTs, 1 LPUART, up to 6 SPIs, 3 I2Cs |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- High-performance Arm Cortex-M0+ 32-bit RISC core.
- High-speed embedded memories: up to 192 Kbytes of Flash, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- Extensive analog peripherals: 12-bit ADC, 2 x 12-bit DACs, and 2 ultra-low-power comparators.
- Rich communication interfaces: USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs.
- Up to 24 capacitive sensing channels for touch sensing functionality.
- 7-channel DMA controller supporting various peripherals.
- CRC calculation unit, 96-bit unique ID, and true RNG with firewall protection.
- Ultra-safe, low-power BOR and programmable voltage detector (PVD).
- Internal clock sources including crystal oscillators and internal RC oscillators.
Applications
- Low-power IoT devices and smart sensors.
- Portable and battery-powered devices.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Consumer electronics such as wearables and fitness trackers.
- Automotive systems, especially those requiring low power and high reliability.
Q & A
- What is the core architecture of the STM32L072KZU6?
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 STM32L072KZU6?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L072KZU6?
The device operates from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L072KZU6?
The device features Standby, Stop, and Stop + RTC + RAM retention modes, with current consumptions of 0.29 µA, 0.43 µA, and 0.86 µA respectively.
- What is the wakeup time from Flash memory?
The wakeup time from Flash memory is 5 µs.
- What analog peripherals are available on the STM32L072KZU6?
The device includes a 12-bit ADC, 2 x 12-bit DACs, and 2 ultra-low-power comparators.
- What communication interfaces are supported by the STM32L072KZU6?
The device supports USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs.
- How many capacitive sensing channels does the STM32L072KZU6 have?
The device has up to 24 capacitive sensing channels.
- What is the package type of the STM32L072KZU6?
The package type is UFQFPN 32 5x5x0.55 mm.
- Does the STM32L072KZU6 support DMA?
Yes, it supports a 7-channel DMA controller.
