Overview
The STM32L072KZU6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It integrates the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This device is designed for applications requiring high power efficiency and features a comprehensive set of peripherals and interfaces.
The STM32L072KZU6TR includes up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM, all with error correction capabilities. It also features a real-time clock, multiple timers, and advanced communication interfaces such as USB 2.0, SPI, I2C, and USART.
The device operates within a wide temperature range of -40 to 125 °C and supports various low-power modes, making it suitable for battery-powered and energy-sensitive applications.
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, 1.14 Msps, up to 16 channels |
| DACs | 2 x 12-bit with output buffers |
| Comparators | 2 ultra-low-power comparators |
| Timers | 11 timers including 16-bit, ultra-low-power, SysTick, RTC, and watchdogs |
| Communication Interfaces | USB 2.0 crystal-less, 4x USART, 1x UART (low power), up to 6x SPI, 3x I2C |
| Capacitive Sensing Channels | Up to 24 channels |
| Package | UFQFPN 32 5x5x0.55 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, etc.)
- High-performance Arm Cortex-M0+ 32-bit RISC core up to 32 MHz
- Rich set of peripherals including 12-bit ADC, 2 x 12-bit DACs, and ultra-low-power comparators
- Advanced communication interfaces: USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs
- Up to 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- 7-channel DMA controller supporting various peripherals
- Internal voltage adaptation and multiple clock sources
- True RNG and firewall protection for enhanced security
- All packages are ECOPACK2 compliant
Applications
- Battery-powered devices and energy-sensitive applications
- IoT devices requiring low power consumption
- Industrial automation and control systems
- Medical devices and healthcare equipment
- Consumer electronics such as smart home devices and wearables
- Automotive systems and telematics
Q & A
- What is the core architecture of the STM32L072KZU6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+ with a Memory Protection Unit (MPU).
- What is the maximum frequency of the STM32L072KZU6TR?
The maximum frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L072KZU6TR?
The device operates from 1.65 V to 3.6 V.
- What are the low-power modes available on the STM32L072KZU6TR?
The device features Standby, Stop, and Stop + RTC + RAM retention modes.
- What is the wakeup time from Flash memory?
The wakeup time is 5 µs.
- What analog peripherals are available on the STM32L072KZU6TR?
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 STM32L072KZU6TR?
The device supports USB 2.0 crystal-less, multiple USARTs, SPIs, and I2Cs.
- How many capacitive sensing channels does the STM32L072KZU6TR have?
The device has up to 24 capacitive sensing channels.
- Is the STM32L072KZU6TR RoHS compliant?
Yes, the device is RoHS compliant and comes in ECOPACK2 packages.
- What is the operating temperature range of the STM32L072KZU6TR?
The operating temperature range is -40 to 125 °C.
