Overview
The STM32L031G6U7S is a member of the ultra-low-power STM32L031x4/6 family of microcontrollers from STMicroelectronics. This device is based on the high-performance ARM® Cortex®-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. It is designed to provide high power efficiency and is suitable for a wide range of applications requiring low power consumption.
The STM32L031G6U7S features high-speed embedded memories, including up to 32 Kbytes of Flash program memory, 8 Kbytes of RAM, and 1 Kbyte of data EEPROM. The device also includes an extensive range of enhanced I/Os and peripherals, such as analog features, timers, and communication interfaces.
The ultra-low-power modes of the STM32L031G6U7S, including Standby, Stop, and low-power Run modes, make it an ideal choice for battery-powered devices and other low-power applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Frequency | Up to 32 MHz |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Flash Memory | Up to 32 Kbytes with ECC |
| RAM | 8 Kbytes |
| EEPROM | 1 Kbyte with ECC |
| Backup Register | 20 bytes |
| ADC | 12-bit, up to 10 channels, 1.14 Msps |
| Comparators | 2 ultra-low-power comparators |
| Timers | 3 general-purpose 16-bit timers, 1 low-power timer, 1 RTC, 1 SysTick, 2 watchdogs |
| Communication Interfaces | 1 I2C, 1 SPI, 1 USART, 1 low-power UART (LPUART) |
| Low-Power Modes | Standby: 0.25 μA, Stop: 0.38 μA, Stop + RTC + 8 KB RAM retention: 0.68 μA |
| Wakeup Time | 5 μs from Flash memory |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal high-speed and low-power RC oscillators |
| Package | UFQFPN28 4X4X0.6 P0.5 NO EXP PAD |
Key Features
- Ultra-Low-Power Platform: Optimized for low power consumption with various power-saving modes.
- High-Performance Core: ARM® 32-bit Cortex®-M0+ core operating at up to 32 MHz.
- Rich Analog Peripherals: 12-bit ADC, ultra-low-power comparators, and a 7-channel DMA controller.
- Extensive Communication Interfaces: Includes I2C, SPI, USART, and low-power UART.
- Multiple Clock Sources: External and internal clock sources including crystal oscillators and RC oscillators.
- Development Support: Serial wire debug supported and pre-programmed bootloader.
- High-Speed I/Os: Up to 38 fast I/Os, with 31 I/Os being 5V tolerant.
- Memory Protection: Sector protection against R/W operation and ECC for Flash and EEPROM.
Applications
- Battery-Powered Devices: Ideal for devices requiring long battery life due to its ultra-low-power modes.
- IoT Devices: Suitable for Internet of Things applications that need low power consumption and high performance.
- Industrial Automation: Can be used in industrial automation for control and monitoring applications.
- Medical Devices: Applicable in medical devices that require low power and high reliability.
- Consumer Electronics: Used in various consumer electronics such as smart home devices and wearables.
Q & A
- What is the core architecture of the STM32L031G6U7S?
The core architecture is based on the ARM® 32-bit Cortex®-M0+.
- What is the operating voltage range of the STM32L031G6U7S?
The operating voltage range is from 1.65 V to 3.6 V.
- What are the low-power modes available in the STM32L031G6U7S?
The device features Standby, Stop, and low-power Run modes, with current consumptions as low as 0.25 μA in Standby mode.
- What types of communication interfaces are available on the STM32L031G6U7S?
The device includes I2C, SPI, USART, and a low-power UART (LPUART).
- What is the maximum frequency of the STM32L031G6U7S?
The maximum frequency is up to 32 MHz.
- What is the temperature range of the STM32L031G6U7S?
The temperature range is from -40 to 125 °C.
- What types of timers are available on the STM32L031G6U7S?
The device includes three general-purpose 16-bit timers, one low-power timer, one RTC, one SysTick, and two watchdogs.
- Does the STM32L031G6U7S support serial wire debug?
Yes, it supports serial wire debug.
- What is the package type of the STM32L031G6U7S?
The package type is UFQFPN28 4X4X0.6 P0.5 NO EXP PAD.
- What is the typical current consumption during ADC conversion?
The typical current consumption during ADC conversion at 10 ksps is 41 μA.
