Overview
The STM32L031G6U3, produced by STMicroelectronics, is part of the ultra-low-power STM32L031x4/6 family of microcontrollers. This device incorporates the high-performance ARM® Cortex®-M0+ 32-bit RISC core, operating at a frequency of up to 32 MHz. It is designed for high power efficiency and features a wide range of enhanced I/Os and peripherals. The STM32L031G6U3 is ideal for applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Operating 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 |
| Data EEPROM | 1 Kbyte with ECC |
| Backup Register | 20 bytes |
| ADC | 12-bit, up to 10 channels |
| 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) |
| Power Modes | Standby mode: 0.25 μA (2 wakeup pins), Stop mode: 0.38 μA (16 wakeup lines), Stop mode + RTC + 8 KB RAM retention: 0.68 μA |
| Wakeup Time | 5 μs from Flash memory |
| Package | UFQFPN28 4X4X0.6 P0.5 NO EXP PAD |
Key Features
- Ultra-low-power platform with multiple power-saving modes.
- High-performance ARM® Cortex®-M0+ 32-bit RISC core.
- High-speed embedded memories: up to 32 Kbytes of Flash, 8 Kbytes of RAM, and 1 Kbyte of data EEPROM.
- Rich analog peripherals including a 12-bit ADC, two ultra-low-power comparators, and multiple timers.
- Advanced communication interfaces: I2C, SPI, USART, and low-power UART.
- Real-time clock and backup registers that remain powered in Standby mode.
- Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds and programmable voltage detector (PVD).
- Internal and external clock sources, including crystal oscillators and internal RC oscillators.
- Pre-programmed bootloader and serial wire debug support.
- Up to 38 fast I/Os (31 I/Os 5V tolerant).
Applications
The STM32L031G6U3 is suitable for a wide range of low-power applications, including:
- Battery-powered devices such as smart meters, fitness trackers, and wearable devices.
- IoT devices requiring low power consumption and high performance.
- Industrial automation and control systems.
- Medical devices and healthcare equipment.
- Consumer electronics such as remote controls and gaming devices.
Q & A
- What is the core architecture of the STM32L031G6U3?
The core architecture is based on the ARM® 32-bit Cortex®-M0+ RISC core.
- What is the operating voltage range of the STM32L031G6U3?
The operating voltage range is from 1.65 V to 3.6 V.
- What are the key power-saving modes of the STM32L031G6U3?
The key power-saving modes include Standby mode (0.25 μA), Stop mode (0.38 μA), and Stop mode + RTC + 8 KB RAM retention (0.68 μA).
- What types of communication interfaces does the STM32L031G6U3 support?
The device supports I2C, SPI, USART, and low-power UART (LPUART) interfaces.
- What is the maximum operating frequency of the STM32L031G6U3?
The maximum operating frequency is up to 32 MHz.
- What is the temperature range for the STM32L031G6U3?
The temperature range is from -40 to 125 °C.
- Does the STM32L031G6U3 have a real-time clock?
Yes, it includes a real-time clock (RTC) and backup registers that remain powered in Standby mode.
- What types of timers are available on the STM32L031G6U3?
The device features three general-purpose 16-bit timers, one low-power timer, one RTC, one SysTick, and two watchdogs.
- How many I/Os does the STM32L031G6U3 have?
The device has up to 38 fast I/Os, with 31 I/Os being 5V tolerant.
- Is the STM32L031G6U3 supported by a pre-programmed bootloader?
Yes, it includes a pre-programmed bootloader and supports serial wire debug.
- What package type is the STM32L031G6U3 available in?
The device is available in the UFQFPN28 4X4X0.6 P0.5 NO EXP PAD package.
