STMicroelectronics STM32L471VGT6

Overview

STM32L471VGT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz (100 DMIPS), featuring 1 MB Flash, 128 KB SRAM, and integrated analog peripherals including three 12-bit ADCs (5 Msps), two 12-bit DACs, two op-amps with PGA, and two ultra-low-power comparators. It supports rich connectivity (CAN 2.0B, 5× USART, 2× SAI, SDMMC) and is deployed in battery-powered industrial sensors and portable medical devices requiring long runtime and mixed-signal processing.

For engineers reviewing the STM32L471VGT6 datasheet, STM32L471VGT6 pinout, STM32L471VGT6 application, or STM32L471VGT6 equivalent, key selection criteria include its 30 nA shutdown current, dual-bank read-while-write Flash, ART Accelerator™ enabling zero-wait-state execution, and LQFP100 package with 80 GPIOs (most 5 V-tolerant) for compact, power-constrained embedded designs.

Technical Context

The STM32L471VGT6 implements an Arm Cortex-M4 core with FPU and Adaptive Real-time Accelerator (ART™) for deterministic Flash execution at 80 MHz. Its FlexPowerControl architecture enables seven low-power modes - from 30 nA Shutdown to 100 µA/MHz Run mode - managed via a dedicated power control block with BOR and voltage scaling.

Peripherals are interconnected via a multi-layer AHB/APB matrix supporting concurrent high-bandwidth transfers. Clocking includes three PLLs (system, audio, ADC), four oscillator sources (HSE, LSE, HSI16, MSI), and auto-trimming for ±0.25% accuracy - enabling precise timing for audio streaming (SAI), real-time control (advanced timers), and secure boot (RNG + CRC + 96-bit UID).

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant and ECOPACK2® certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L432KCU6, the STM32L471VGT6 provides 4× more Flash, dual high-speed ADCs, and audio interfaces - justifying its use in feature-rich edge nodes. Versus STM32L552VET6, it trades hardware security for lower cost and broader analog integration, making it optimal for non-certified industrial monitoring where power efficiency dominates.

Availability

STM32L471VGT6 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart building controllers, and automotive body electronics requiring stable component supply across multi-year production cycles.

Supply support for STM32L471VGT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, integrating advanced power gating, adaptive voltage scaling, and energy-efficient peripherals for battery-operated and energy-harvesting systems.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32L471VGT6 operates at up to 80 MHz with an Arm Cortex-M4 core and FPU, delivering 100 DMIPS (Dhrystone 2.1) and 273.55 CoreMark® (3.42 CoreMark/MHz). This performance is sustained with zero wait states thanks to the ART Accelerator™, which caches Flash accesses - critical for deterministic real-time response in motor control and sensor fusion tasks.

Does STM32L471VGT6 support hardware cryptographic functions?

No, the STM32L471VGT6 does not include dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It provides a true random number generator (RNG) and CRC calculation unit for basic data integrity and entropy generation, but lacks hardware encryption engines found in the STM32L5 or STM32U5 series - making it suitable for applications where software-based crypto or no crypto is acceptable.

What are the supported low-power modes and their typical current consumption?

The device supports seven low-power modes: Shutdown (30 nA), Standby (120 nA), Standby with RTC (420 nA), Stop 2 (1.1 µA), Stop 1 (1.4 µA with RTC), Sleep (83 µA/MHz), and Run (100 µA/MHz). These values assume VDD = 3.3 V, 25 °C, and ART Accelerator enabled - verified in DS10741 Rev 3 Table 39–38. Wakeup time from Stop 2 is 4 µs, enabling rapid response to sensor interrupts.

Which development tools and debug interfaces are natively supported?

The STM32L471VGT6 supports Serial Wire Debug (SWD) and JTAG via its SWJ-DP interface, compatible with ST-LINK/V2-1, SEGGER J-Link, and CMSIS-DAP debuggers. It also includes Embedded Trace Macrocell™ (ETM) for instruction trace, and development is streamlined using STM32CubeMX for pin/peripheral configuration and STM32CubeIDE for compilation and debugging - all freely available from STMicroelectronics.