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STMicroelectronics STM32L471VGT3 — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

STM32L471VGT3 ARM Cortex-M4 MCU, 80 MHz, 1 MB Flash

MPNSTM32L471VGT3
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STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, 80 MHz, 1 MB Flash, 128 KB SRAM, 82 I/O, 16x12b ADC, 2x12b DAC, CAN, QSPI, -40°C to 125°C, 100-LQFP.

$14.5800Ref. price · indicative, final on quote
STM32L471VGT3 datasheet
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Specifications

STM32L471VGT3 Technical Specifications
ParameterValue
SeriesSTM32L4
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C~125°C(TA)
Speed80MHz
PackageTray
RAM size128K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, PWM, WDT
ConnectivityCANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART
Number of i (O)82
Core processorARM® Cortex®-M4
Case100-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size1MB (1M x 8)

Product details

ARM Cortex-M4 with 1 MB Flash — what the memory budget buys

The STM32L471VGT3: The 128 KB SRAM is the runtime ceiling for data buffers, stack, and heap.

The internal oscillator trims out the external crystal for cost-sensitive builds, though the HSE port is still available if you need tighter timing for CAN or USB.

Peripheral set for industrial and mixed-signal designs

Connectivity covers CANbus, I²C, SPI, UART/USART, QSPI, SAI, and SWPMI — enough for fieldbus gateways, sensor hubs, and audio codec interfaces.

Lifecycle and supply posture

For dual-sourcing resilience, the STM32L4 series includes pin-compatible density variants — the base product number STM32L471 covers a range of Flash and SRAM options in the same 100-LQFP footprint, so a BOM swap is a firmware rebuild, not a board respin.

Frequently asked questions

What is the closest pin-compatible alternative to STM32L471VGT3?

The STM32L4 series includes pin-compatible density variants under the base product number STM32L471 in the same 100-LQFP footprint. A move to a different Flash or SRAM size within that family requires only a firmware rebuild, not a PCB change.

What is STM32L471VGT3's listed speed?

The core runs at 80 MHz. The ARM Cortex-M4 with FPU handles single-cycle multiply-accumulate and hardware divide, so the 80 MHz clock delivers real DSP throughput for motor control or sensor fusion without an external DSP.