Overview
The STM32L071RZH6 is part of the STM32L071xx series of ultra-low-power microcontrollers from STMicroelectronics. These devices are based on the high-performance Arm Cortex-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. The STM32L071RZH6 is designed to provide high power efficiency, making it suitable for a wide range of applications that require low power consumption.
The microcontroller features extensive memory options, including up to 192 Kbytes of Flash program memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM. It also includes a variety of peripherals and interfaces, such as analog-to-digital converters (ADCs), comparators, timers, and communication interfaces like USART, I2C, and SPI.
The device operates from a 1.65 to 3.6 V power supply and is available in a -40 to +125 °C temperature range. It includes multiple low-power modes, such as Standby and Stop modes, to further reduce power consumption.
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 |
| 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 |
| Communication Interfaces | Up to 3 I2Cs, 2 SPIs, 1 I2S, 4 USARTs, 1 low-power UART (LPUART) |
| Timers | 11 timers including 16-bit and ultra-low-power timers, RTC, and SysTick |
| Package | TFBGA 64 5x5x1.2 P 0.5 mm |
Key Features
- Ultra-low-power platform: Optimized for low power consumption with multiple low-power modes.
- High-performance core: Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- Extensive memory options: Up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- Analog peripherals: 12-bit ADC with hardware oversampling, two ultra-low-power comparators, and a 7-channel DMA controller.
- Communication interfaces: USART, I2C, SPI, I2S, and a low-power UART (LPUART).
- Timers and watchdogs: Multiple timers including 16-bit and ultra-low-power timers, RTC, SysTick, and two watchdogs.
- Power management: Ultra-safe, low-power BOR (brownout reset), ultra-low-power POR/PDR, and programmable voltage detector (PVD).
- Clock sources: Various internal and external clock sources including crystal oscillators and internal RC oscillators.
- Development support: Serial wire debug supported and pre-programmed bootloader.
Applications
The STM32L071RZH6 is suitable for a variety of applications that require low power consumption and high performance. These include:
- Industrial automation: For applications requiring low power and reliable performance in industrial environments.
- IoT devices: Ideal for Internet of Things (IoT) devices that need to operate for extended periods on battery power.
- Medical devices: For medical devices that require low power consumption and high reliability.
- Consumer electronics: Suitable for consumer electronics that need to balance performance and power efficiency.
- Automotive systems: For automotive applications that require robust performance and low power consumption.
Q & A
- What is the core architecture of the STM32L071RZH6?
The STM32L071RZH6 is based on the Arm 32-bit Cortex-M0+ core with a memory protection unit (MPU).
- What are the memory options available on the STM32L071RZH6?
The device features up to 192 Kbytes of Flash memory, 20 Kbytes of RAM, and 6 Kbytes of data EEPROM.
- What are the power supply and temperature range specifications of the STM32L071RZH6?
The device operates from a 1.65 V to 3.6 V power supply and is available in a -40 to +125 °C temperature range.
- What low-power modes are available on the STM32L071RZH6?
The device includes Standby mode (0.29 µA), Stop mode (0.43 µA), and Stop mode + RTC + 20-Kbyte RAM retention (0.86 µA).
- What communication interfaces are supported by the STM32L071RZH6?
The device supports USART, I2C, SPI, I2S, and a low-power UART (LPUART).
- What are the key analog peripherals of the STM32L071RZH6?
The device includes a 12-bit ADC with hardware oversampling, two ultra-low-power comparators, and a 7-channel DMA controller.
- What are the clock sources available on the STM32L071RZH6?
The device features various internal and external clock sources, including crystal oscillators and internal RC oscillators.
- Does the STM32L071RZH6 support serial wire debug?
Yes, the device supports serial wire debug.
- What is the package type of the STM32L071RZH6?
The device is available in a TFBGA 64 5x5x1.2 P 0.5 mm package.
- What are some typical applications for the STM32L071RZH6?
The device is suitable for industrial automation, IoT devices, medical devices, consumer electronics, and automotive systems.
