Overview
The STM32L031G4U6 is a part of the ultra-low-power STM32L031x4/6 family of microcontrollers from STMicroelectronics. This device is built around the high-performance ARM® Cortex®-M0+ 32-bit RISC core, operating at a maximum frequency of 32 MHz. It is designed to provide high power efficiency and is suitable for a wide range of applications, particularly those requiring low power consumption and high performance.
The STM32L031G4U6 features high-speed embedded memories, including up to 32 Kbytes of Flash program memory, 1 Kbyte of data EEPROM, and 8 Kbytes of RAM. The device also includes an extensive range of enhanced I/Os and peripherals, making it versatile for various embedded system designs.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | ARM® 32-bit Cortex®-M0+ |
| Maximum Frequency | Up to 32 MHz |
| Flash Memory | Up to 32 Kbytes with ECC |
| RAM | 8 Kbytes |
| EEPROM | 1 Kbyte with ECC |
| Power Supply | 1.65 V to 3.6 V |
| Temperature Range | -40 to 125 °C |
| Standby Mode Current | 0.25 µA (2 wakeup pins) |
| Stop Mode Current | 0.38 µA (16 wakeup lines) |
| Stop Mode + RTC + RAM Retention Current | 0.68 µA |
| Run Mode Current | Down to 76 µA/MHz |
| Wakeup Time | 5 µs (from Flash memory) |
| ADC Conversion Current | 41 µA (at 10 ksps) |
| Clock Sources | 1 to 25 MHz crystal oscillator, 32 kHz oscillator for RTC, internal 16 MHz RC, internal low-power 37 kHz RC, internal multispeed low-power 65 kHz to 4.2 MHz RC |
| Communication Interfaces | 1x USART, 1x UART (low power), 1x SPI, 1x I2C |
| Timers | 8x timers: 1x 16-bit with up to 4 channels, 2x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC, 2x watchdogs |
| Package | UFQFPN28 4x4 mm |
Key Features
- Ultra-low-power platform: Features low power modes such as Standby, Stop, and Run modes with minimal current consumption.
- High-performance core: ARM® 32-bit Cortex®-M0+ core operating at up to 32 MHz.
- Rich Analog Peripherals: Includes a 12-bit ADC with up to 10 channels, two ultra-low-power comparators, and multiple timers.
- Advanced Communication Interfaces: Supports USART, SPI, I2C, and low-power UART.
- Development Support: Includes serial wire debug support and a pre-programmed bootloader.
- Extensive I/O Capabilities: Up to 38 fast I/Os, with 31 I/Os being 5V tolerant.
- Power Management: Ultra-safe, low-power BOR (brownout reset), ultralow power POR/PDR, and programmable voltage detector (PVD).
- Backup Registers: Includes a set of backup registers that remain powered in Standby mode.
Applications
The STM32L031G4U6 is ideal for a variety of applications that require low power consumption and high performance. These include:
- Battery-Powered Devices: Suitable for consumer electronics and industrial automation where battery life is critical.
- IoT Devices: Perfect for Internet of Things applications that need efficient power management and robust performance.
- Industrial Automation: Used in various industrial control systems where low power and reliability are essential.
- Medical Devices: Can be used in medical devices that require precise control and low power consumption.
Q & A
- What is the core architecture of the STM32L031G4U6?
The STM32L031G4U6 is based on the ARM® 32-bit Cortex®-M0+ core.
- What is the maximum operating frequency of the STM32L031G4U6?
The maximum operating frequency is up to 32 MHz.
- What is the power supply range for the STM32L031G4U6?
The power supply range is from 1.65 V to 3.6 V.
- What are the low-power modes available in the STM32L031G4U6?
The device features Standby, Stop, and Run modes with various current consumption levels.
- What types of communication interfaces does the STM32L031G4U6 support?
The device supports USART, SPI, I2C, and low-power UART.
- Does the STM32L031G4U6 have any analog peripherals?
Yes, it includes a 12-bit ADC with up to 10 channels and two ultra-low-power comparators.
- What is the temperature range for the STM32L031G4U6?
The operating temperature range is from -40 to 125 °C.
- Does the STM32L031G4U6 support serial wire debug?
Yes, it supports serial wire debug.
- What is the package type for the STM32L031G4U6?
The package type is UFQFPN28 4x4 mm.
- Are there any backup registers in the STM32L031G4U6?
Yes, it includes a set of backup registers that remain powered in Standby mode.
