Overview
The STM32L072RZT6TR is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L072xx series. It integrates 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. It includes a memory protection unit (MPU), high-speed embedded memories, and various low-power modes, making it suitable for a broad spectrum of applications requiring low energy consumption.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ |
| 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 | Standby: 0.29 µA, Stop: 0.43 µA, Stop + RTC + 20-Kbyte RAM retention: 0.86 µA |
| Wakeup Time | 5 µs from Flash memory |
| ADC Conversion | 41 µA at 10 ksps for 12-bit ADC |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, high-speed internal 16 MHz RC, and more |
| Communication Interfaces | Up to three I2Cs, two SPIs, one I2S, four USARTs, one low-power UART, and crystal-less USB 2.0 |
| Timers | Four general-purpose 16-bit timers, one low-power timer, one RTC, one SysTick, and two watchdogs |
| Capacitive Sensing Channels | Up to 24 channels supporting touchkey, linear, and rotary touch sensors |
| Package | LQFP 64 10x10x1.4 mm |
Key Features
- Ultra-low-power platform with multiple low-power modes (Standby, Stop, etc.)
- 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, two 12-bit DACs, two ultra-low-power comparators, and up to 24 capacitive sensing channels
- Extensive range of communication interfaces: USB 2.0 crystal-less, USARTs, SPIs, I2Cs, I2S, and low-power UART
- Multiple clock sources and internal voltage adaptation
- Pre-programmed bootloader and serial wire debug support
- True RNG and firewall protection for enhanced security
- All packages are ECOPACK2 compliant
Applications
- IoT devices and smart home applications
- 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
- Sensor networks and data logging devices
Q & A
- What is the core architecture of the STM32L072RZT6TR?
The core architecture is based on the Arm 32-bit Cortex-M0+.
- What is the maximum operating frequency of the STM32L072RZT6TR?
The maximum operating frequency is up to 32 MHz.
- What are the power supply requirements for the STM32L072RZT6TR?
The power supply range is from 1.65 V to 3.6 V.
- What are the low-power modes available in the STM32L072RZT6TR?
The available low-power modes include Standby, Stop, and Stop + RTC + 20-Kbyte RAM retention.
- What is the wakeup time from Flash memory?
The wakeup time is 5 µs.
- What are the key analog peripherals of the STM32L072RZT6TR?
The key analog peripherals include a 12-bit ADC, two 12-bit DACs, and two ultra-low-power comparators.
- What communication interfaces are available on the STM32L072RZT6TR?
The available interfaces include USB 2.0 crystal-less, USARTs, SPIs, I2Cs, I2S, and a low-power UART.
- How many capacitive sensing channels does the STM32L072RZT6TR support?
It supports up to 24 capacitive sensing channels.
- What is the package type of the STM32L072RZT6TR?
The package type is LQFP 64 10x10x1.4 mm.
- Is the STM32L072RZT6TR compliant with any environmental standards?
Yes, all packages are ECOPACK2 compliant.
