Item specifics
Description
STM32L471VGT6 Product Overview
STM32L471VGT6 is an Arm Cortex-M4 MCU at 80 MHz with FPU and ART Accelerator, LQFP-100. 1 MB Dual-Bank Flash, 128 KB SRAM, two 12-bit ADCs (5 Msps, 16 ch), two 12-bit DACs, two op-amps (8 MHz GBW), two comparators, capacitive touch sensing (TSC), true random number generator (TRNG), 2×SAI audio interfaces, SDMMC (4-bit), LP timers, RTC, 3×USART, 1×UART, 1×LPUART, 2×SPI/I2S, 3×I2C. Up to 83 x 5 V-tolerant I/Os. 1.71–3.6 V, -40–85 °C. Compared to the 64-pin STM32L471RGT6, the 100-pin STM32L471VGT6 provides more I/Os, making it the top-tier ultra-low-power platform for battery-powered sensors, portable instruments, and industrial control applications needing extensive pin connectivity, high-performance analog signal conditioning, audio processing, and large storage without USB.
STM32L471VGT6 Core Features
Core: The STM32L471VGT6 features an Arm Cortex-M4 core at 80 MHz, with FPU + ART Accelerator + MPU
Memory: The STM32L471VGT6 provides 1 MB Dual-Bank Flash (RWW), 128 KB SRAM
Analog: 2×12-bit ADCs (5 Msps, 16 ch), 2×12-bit DACs, 2×Op-Amps (PGA), 2×Comparators
Audio & Storage: The STM32L471VGT6 integrates 2×SAI audio interfaces, SDMMC (4-bit)
Capacitive Touch: The STM32L471VGT6 features Capacitive Touch Sensing (TSC)
Connectivity: 3×USART, 1×UART, 1×LPUART, 2×SPI/I2S, 3×I2C
Security: True Random Number Generator (TRNG)
Timers: 2×Advanced Motor Control Timers, multiple GP/LP timers, RTC
I/Os: 83 (5 V-tolerant)
Package: LQFP-100
Temperature Range: -40°C to 85°C
STM32L471VGT6 Applications
Battery-Powered Sensors: The STM32L471VGT6 is ideal for wireless sensors needing analog signal conditioning, high-precision acquisition, and multiple pins
Portable Devices: Wearables and portable medical devices can leverage the STM32L471VGT6's ultra-low power consumption
Industrial Metering: Water, gas, and electricity meters are perfect applications for the STM32L471VGT6
Audio & Consumer Electronics: The STM32L471VGT6 supports digital audio interfaces, advanced remote controls, and smart cards
Motor Control: Dual-motor FOC and servo drives can rely on the STM32L471VGT6's advanced timers
STM32L471VGT6 Key Advantages
On-Chip Op-Amps + Dual DACs + Dual Comparators: The STM32L471VGT6 delivers powerful analog signal conditioning and output capabilities, saving external analog components
1 MB Dual-Bank Flash + 128 KB SRAM: The STM32L471VGT6 provides top-tier storage for safe firmware updates and complex algorithms
SAI Audio + SDMMC: The STM32L471VGT6 offers flexible audio interface and external storage expansion
83 I/Os in LQFP-100 Package: Rich pin resources for multi-peripheral connectivity and complex systems
Cortex-M4 + FPU + Ultra-Low Power: Excellent DSP and floating-point performance while maintaining extremely low power consumption
5 V-tolerant I/Os: Enhanced system noise immunity, simplified external level-shifting circuitry
Full Ecosystem Compatibility: Easy development with STM32CubeIDE/HAL/LL libraries for the STM32L471VGT6
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FAQ
1. What is STM32L471VGT6?
STM32L471VGT6 is an ultra-low-power 32-bit MCU from STMicroelectronics' STM32L4 series, built around an Arm® Cortex®-M4 core with FPU and DSP instructions in an LQFP-100 package. Operating at 80 MHz, the STM32L471VGT6 features 1 MB Flash and 128 KB SRAM, delivering strong processing capability and ample storage while maintaining the L4 series' signature ultra-low power consumption—ideal for industrial and IoT applications requiring large code space and rich I/O.
2. What are the key specifications of STM32L471VGT6?
Core: Arm® Cortex®-M4, up to 80 MHz, 100 DMIPS with FPU and DSP
Memory: 1 MB Flash, 128 KB SRAM
Operating Voltage: 1.71 V to 3.6 V
Temperature Range: -40 °C to +85 °C (industrial grade)
I/O Count: up to 82
Package: LQFP-100 (14 mm × 14 mm)
3. What package does STM32L471VGT6 use and is it easy to solder?
The STM32L471VGT6 comes in an LQFP-100 package measuring 14 mm × 14 mm with exposed 0.5 mm pitch leads. Drag-soldering the STM32L471VGT6 with a standard soldering iron is straightforward—no hot-air station required—making it very suitable for small-batch hand assembly, prototyping, and rework.
4. What applications is STM32L471VGT6 suitable for?
With 1 MB of Flash, 82 I/Os, and a rich set of peripherals, the STM32L471VGT6 is widely used in devices that need to run complex protocol stacks or large firmware images, such as industrial control gateways, data concentrators, portable medical equipment, advanced sensor nodes, and IoT endpoints that balance performance, storage, and power efficiency.
5. What development tools support STM32L471VGT6?
ST provides free STM32CubeMX for graphical configuration and STM32CubeIDE as an integrated development environment for the STM32L471VGT6, along with the STM32CubeL4 firmware library. Debugging and programming are handled by ST-Link debuggers. Rapid prototyping can be done using compatible Nucleo or Discovery boards for functional verification.
6. What is the power consumption of the STM32L471VGT6 across its low-power modes?
Temperature Range: -40 °C to +85 °C
Ultra-low-power modes of the STM32L471VGT6:
Shutdown mode: ~33 nA (5 wake-up pins)
Standby mode: ~125 nA (5 wake-up pins), ~430 nA with RTC
Stop 2 mode: ~1.2 µA, ~1.4 µA with RTC
Run mode: ~100 µA/MHz (LDO mode)
7. How does STM32L471VGT6 differ from STM32L476VGT6?
Both share an LQFP-100 package, 80 MHz Cortex-M4 core, and 1 MB Flash. The most notable difference is that the STM32L471VGT6 lacks a segment LCD driver, while retaining core communication interfaces such as CAN 2.0B, USB OTG, and SAI. If your application does not require a segment display, the STM32L471VGT6 delivers equivalent performance with potential advantages in cost and power.
8. What key peripheral interfaces does STM32L471VGT6 offer?
Communication: CAN 2.0B, I²C, SPI, UART/USART, USB OTG FS, SAI (I2S/PCM/PDM)
Analog: 12-bit 5 Msps ADC, 12-bit DAC, ultra-low-power comparators
Timers: 16-bit and 32-bit general-purpose timers, advanced motor-control timer
Others: Quad SPI interface, SDMMC interface
9. How does STM32L471VGT6 differ from STM32L471RET6?
The main differences between the STM32L471VGT6 and the RET6 are package and Flash size. The STM32L471VGT6 uses an LQFP-100 package (82 I/Os) with 1 MB Flash, while the RET6 uses a smaller LQFP-64 package (51 I/Os) with 512 KB Flash. Both have 128 KB SRAM. Choose STM32L471VGT6 when you need maximum pins and code space; RET6 offers a more compact solution for moderate I/O and storage requirements.
10. Does STM32L471VGT6 support the SWPMI single-wire protocol interface?
Yes. The STM32L471VGT6 integrates SWPMI (Single Wire Protocol Master Interface), enabling full-duplex communication over a single data line. This is commonly used for connecting smart cards, secure elements, or certain industrial sensors, providing significant convenience for applications that need to simplify wiring harnesses and reduce connector costs.