STMicroelectronics STM32L475VGT6

Overview

STM32L475VGT6 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, USB OTG FS, dual SAI audio interfaces, and integrated analog peripherals including three 12-bit ADCs (5 Msps) and two 12-bit DACs - deployed in battery-powered industrial sensors and portable medical monitors.

For engineers reviewing the STM32L475VGT6 datasheet, STM32L475VGT6 pinout, STM32L475VGT6 application, or STM32L475VGT6 equivalent, key selection criteria include its 30 nA shutdown current, ART Accelerator™ enabling zero-wait-state Flash execution, dual-bank read-while-write Flash architecture, and hardware parity on 32 KB SRAM for functional safety compliance.

Technical Context

The STM32L475VGT6 integrates an Adaptive Real-time Accelerator (ART™) that eliminates Flash wait states at 80 MHz, coupled with a memory protection unit (MPU) and dual-bank Flash supporting seamless firmware updates. Its power architecture includes five low-power modes - Shutdown (30 nA), Standby (120 nA), Stop 2 (1.1 µA), and Run mode (100 µA/MHz) - managed via FlexPowerControl logic with BOR and voltage scaling.

It features three independent analog domains: one for 3×12-bit ADCs (200 µA/Msps, hardware oversampling to 16-bit), another for 2× op-amps with PGA, and a third for 2× ultra-low-power comparators - all supplied separately to minimize noise coupling. Clocking relies on four sources: HSE (4–48 MHz), LSE (32.768 kHz), HSI16 (±1%), and auto-trimmed MSI (±0.25% accuracy).

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 114 fast I/Os - 100 pins used, including 87 GPIOs (most 5 V-tolerant), 14 dedicated analog inputs, and 10 power/ground pins for noise isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32L432KCU6, the STM32L475VGT6 delivers 4× more Flash, dual-bank RWW, and audio-capable SAI - justifying its use in feature-rich portable instruments. Versus STM32L552RET6, it trades hardware security for lower power and higher analog integration - optimal for battery-limited but non-certified industrial endpoints.

Availability

STM32L475VGT6 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart building controllers, and asset tracking tags requiring stable component supply across multi-year production cycles.

Supply support for STM32L475VGT6 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, Switzerland, 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 extended battery life, rich analog integration, and real-time performance - balancing energy efficiency with computational capability for intelligent edge devices.

FAQ

What is the maximum operating frequency and corresponding performance metric of the STM32L475VGT6?

The STM32L475VGT6 operates at up to 80 MHz with an Arm Cortex-M4 core featuring FPU and DSP extensions, delivering 100 DMIPS (Dhrystone 2.1) and 273.55 CoreMark® (3.42 CoreMark/MHz). This performance level supports real-time signal processing tasks such as FFT-based vibration analysis and sensor fusion algorithms without external acceleration.

Does the STM32L475VGT6 support hardware cryptographic acceleration?

No, the STM32L475VGT6 does not include dedicated hardware crypto accelerators (e.g., AES, PKA, HASH). It relies on software libraries (STM32CubeL4) for cryptographic operations. For hardware-accelerated cryptography, ST recommends the STM32L5 or STM32U5 series, which integrate AES-256, PKA, and secure key storage with TrustZone®.

How many analog-to-digital converters does the STM32L475VGT6 integrate, and what are their key specifications?

The STM32L475VGT6 integrates three independent 12-bit ADCs, each capable of 5 Msps sampling rate. They support hardware oversampling up to 16-bit resolution, have dedicated DMA channels, and operate with 200 µA/Msps power efficiency. All ADCs share a common analog supply (VDDA) and can be synchronized for simultaneous sampling across multiple channels.

What development tools and debug interfaces are supported by the STM32L475VGT6?

The STM32L475VGT6 supports Serial Wire Debug (SWD) and JTAG via its SWJ-DP interface, along with Embedded Trace Macrocell™ (ETM) for instruction-level tracing. ST's official tools include ST-LINK/V2-1 debuggers, STM32CubeIDE, and STM32CubeMX for pinout and middleware configuration. Third-party IDEs like Keil MDK and IAR Embedded Workbench are also fully supported.