Overview
The STM32L471QGI6TR is a highly advanced microcontroller from STMicroelectronics, part of the STM32L4 series. This ultra-low-power device is based on the Arm® Cortex®-M4 core with a floating-point unit (FPU), making it suitable for a wide range of applications that require high performance and low energy consumption.
With its robust set of peripherals and advanced power management features, the STM32L471QGI6TR is ideal for IoT, industrial, and consumer electronics applications where power efficiency and reliability are critical.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 CPU with FPU |
| Frequency | Up to 80 MHz |
| Flash Memory | Up to 1 MB |
| SRAM | Up to 128 KB |
| Power Supply | 1.71 V to 3.6 V |
| Temperature Range | -40 °C to 85/105/125 °C |
| Low-Power Modes | 300 nA in VBAT mode, 30 nA Shutdown mode, 120 nA Standby mode, 420 nA Standby mode with RTC |
| Package | UFBGA132 (10 × 10 mm) |
| Clock Sources | 4 to 48 MHz crystal oscillator, 32 kHz crystal oscillator for RTC, internal 16 MHz RC, internal low-power 32 kHz RC |
| I/Os | Up to 114 fast I/Os, most 5 V-tolerant |
Key Features
- Ultra-Low Power Consumption: Features like FlexPowerControl, 300 nA in VBAT mode, and 30 nA Shutdown mode make it highly energy-efficient.
- Advanced Core: Arm® Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™), and 100DMIPS performance.
- Rich Peripherals: Includes 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- Communication Interfaces: Supports multiple interfaces such as SAIs, I2C, USARTs, SPIs, CAN, and SDMMC.
- RTC and Backup Registers: Real-time clock with hardware calendar, alarms, and calibration, along with backup registers.
- Development Support: Includes serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™ for comprehensive development tools.
Applications
- Internet of Things (IoT): Ideal for IoT devices requiring low power consumption and high performance.
- Industrial Automation: Suitable for industrial control systems, sensors, and actuators.
- Consumer Electronics: Used in smart home devices, wearables, and other consumer electronics where power efficiency is crucial.
- Medical Devices: Can be used in medical devices that require precise control and low power consumption.
- Automotive Systems: Applicable in automotive systems for control and monitoring functions.
Q & A
- What is the core architecture of the STM32L471QGI6TR?
The STM32L471QGI6TR is based on the Arm® 32-bit Cortex®-M4 CPU with a floating-point unit (FPU).
- What is the maximum frequency of the STM32L471QGI6TR?
The maximum frequency is up to 80 MHz.
- What is the power supply range of the STM32L471QGI6TR?
The power supply range is from 1.71 V to 3.6 V.
- What are the low-power modes available in the STM32L471QGI6TR?
The device features 300 nA in VBAT mode, 30 nA Shutdown mode, 120 nA Standby mode, and 420 nA Standby mode with RTC.
- What types of clock sources are supported by the STM32L471QGI6TR?
The device supports 4 to 48 MHz crystal oscillator, 32 kHz crystal oscillator for RTC, internal 16 MHz RC, and internal low-power 32 kHz RC.
- How many I/Os does the STM32L471QGI6TR have?
The device has up to 114 fast I/Os, most of which are 5 V-tolerant.
- What are the key analog peripherals of the STM32L471QGI6TR?
The device includes 3x 12-bit ADCs, 2x 12-bit DACs, 2x operational amplifiers, and 2x ultra-low-power comparators.
- What communication interfaces are available on the STM32L471QGI6TR?
The device supports SAIs, I2C, USARTs, SPIs, CAN, and SDMMC interfaces.
- Does the STM32L471QGI6TR have real-time clock capabilities?
Yes, it includes a real-time clock with hardware calendar, alarms, and calibration.
- What development tools are supported by the STM32L471QGI6TR?
The device supports serial wire debug (SWD), JTAG, and Embedded Trace Macrocell™.
