Overview
The STM32L071RBT6 is an ultra-low-power microcontroller from STMicroelectronics, part of the STM32L0 series. It is based on the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. This microcontroller is designed for applications requiring high power efficiency and a wide range of performance capabilities. It features a comprehensive set of power-saving modes, making it ideal for low-power applications.
The device includes high-speed embedded memories such as up to 192 Kbytes of Flash program memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM. It also boasts an extensive range of enhanced I/Os and peripherals, including USART, I2C, SPI, and more.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm 32-bit Cortex-M0+ with MPU |
| Operating Frequency | Up to 32 MHz |
| Program Memory | Up to 192 Kbytes Flash with ECC |
| RAM | 20 Kbytes |
| EEPROM | 6 Kbytes with ECC |
| Backup Register | 20 bytes |
| I/Os | Up to 84 fast I/Os (78 I/Os 5V tolerant) |
| Supply Voltage | 1.8 to 3.6 V (down to 1.65 V at power down) |
| Operating Temperature | -40 to 125 °C |
| Interfaces | I2C, I2S, LPUART, SPI, USART |
| ADC Channels | Up to 16 channels, 12-bit resolution |
| Package | LQFP64 |
| No. of Pins | 64 Pins |
Key Features
- Ultra-low-power platform with multiple power-saving modes: Standby mode (0.29 µA), Stop mode (0.43 µA), and Stop mode + RTC + 20-Kbyte RAM retention (0.86 µA).
- High-speed internal clock sources: 16 MHz factory-trimmed RC, 37 kHz RC, and multispeed low-power 65 kHz to 4.2 MHz RC.
- Rich analog peripherals: 12-bit ADC with up to 16 channels, 2 ultra-low-power comparators, and a temperature sensor.
- Extensive communication interfaces: 4x USART, 1x UART, up to 6x SPI, and 3x I2C.
- Development support: Serial wire debug and pre-programmed bootloader.
- Advanced timers: 11 timers including 16-bit and 32-bit timers, and watchdogs.
Applications
- Low-power IoT devices and sensors.
- Portable and battery-powered devices.
- Industrial automation and control systems.
- Medical devices requiring low power consumption.
- Automotive systems where power efficiency is crucial.
Q & A
- What is the core architecture of the STM32L071RBT6?
The STM32L071RBT6 is based on the Arm 32-bit Cortex-M0+ core with an MPU.
- What is the maximum operating frequency of the STM32L071RBT6?
The maximum operating frequency is up to 32 MHz.
- What are the power supply voltage ranges for the STM32L071RBT6?
The device operates from 1.8 to 3.6 V, and down to 1.65 V at power down.
- What are the key power-saving modes of the STM32L071RBT6?
The device features Standby mode (0.29 µA), Stop mode (0.43 µA), and Stop mode + RTC + 20-Kbyte RAM retention (0.86 µA).
- What types of communication interfaces does the STM32L071RBT6 support?
The device supports I2C, I2S, LPUART, SPI, and USART interfaces.
- How many ADC channels does the STM32L071RBT6 have?
The device has up to 16 ADC channels with 12-bit resolution.
- What is the package type and number of pins for the STM32L071RBT6?
The device comes in an LQFP64 package with 64 pins.
- What are the operating temperature ranges for the STM32L071RBT6?
The device operates in the temperature range of -40 to 125 °C.
- Does the STM32L071RBT6 support serial wire debug?
Yes, the device supports serial wire debug and has a pre-programmed bootloader.
- What types of timers are available on the STM32L071RBT6?
The device includes 11 timers, including 16-bit and 32-bit timers, and watchdogs.
