STMicroelectronics STM32F401VET6TR

Overview

STM32F401VET6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, delivering 105 DMIPS at 84 MHz, featuring 512 KB Flash, 96 KB SRAM, and integrated USB OTG FS controller with on-chip PHY - deployed in industrial HMI panels requiring real-time sensor fusion and local UI rendering.

For engineers reviewing the STM32F401VET6TR datasheet, STM32F401VET6TR pinout, STM32F401VET6TR application, or STM32F401VET6TR equivalent, key selection criteria include Flash/SRAM capacity, USB OTG FS support, 5 V-tolerant I/O count (up to 78), RTC subsecond accuracy, and low-power Stop mode current (10 µA in Deep power down).

Technical Context

The device integrates an adaptive real-time accelerator (ART Accelerator) enabling zero-wait-state execution from Flash at 84 MHz, paired with a memory protection unit (MPU) for secure task isolation. It supports dual-clock domain operation: high-speed APB/AHB buses up to 84 MHz and low-power peripherals clocked from 32 kHz LSE/LSI sources.

Its peripheral set includes three I²C interfaces (SMBus/PMBus compliant), three USARTs (two at 10.5 Mbit/s), four SPIs (up to 42 Mbit/s), SDIO, and a 12-bit 2.4 MSPS ADC with up to 16 channels - all accessible via 81 GPIOs, of which 78 are 5 V-tolerant and interrupt-capable.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F405RGT6, STM32F401VET6TR trades crypto/USB HS capability for lower BOM cost and smaller footprint; versus STM32F411CEU6, it retains integrated USB PHY and doubles Flash - making it optimal for field-deployable devices needing secure, self-contained USB firmware updates.

Availability

STM32F401VET6TR is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy gateways, portable medical monitors, and automated test equipment requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F401VET6TR 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 management ICs, sensors, and automotive-grade components.

The STM32F4 series targets high-performance embedded applications demanding DSP capability, rich connectivity, and real-time responsiveness - especially in industrial automation, medical instrumentation, and consumer electronics.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32F401VET6TR operates at up to 84 MHz with an ART Accelerator enabling zero-wait-state Flash execution. Its performance is quantified at 105 DMIPS (Dhrystone 2.1), equivalent to 1.25 DMIPS/MHz. This rating reflects sustained integer compute throughput under real-world code execution conditions, validated across temperature and voltage ranges per DS10086 Rev 5.

Does this MCU support USB device functionality without external components?

Yes. The STM32F401VET6TR integrates a full-speed USB 2.0 OTG controller with an on-chip PHY, supporting device, host, and OTG roles. PA11 (DM) and PA12 (DP) are dedicated differential pins; no external transceiver, resistors, or magnetics are required for basic USB device operation such as CDC ACM or HID enumeration.

How many I/O pins are 5 V-tolerant, and what is their maximum toggle frequency?

Up to 78 I/O pins are 5 V-tolerant and rated for up to 42 MHz toggle speed. These include all GPIOs except those assigned to analog functions (e.g., ADC inputs, VREF+) and specific system pins (e.g., BOOT0). Tolerance is guaranteed across the full 1.7–3.6 V supply range, verified per I/O AC characteristics in Section 6.3.16 of DS10086 Rev 5.

What low-power modes are supported, and what is the lowest achievable current draw?

The device supports Run, Sleep, Stop (with Flash in Stop or Deep power down), and Standby modes. In Stop mode with Flash in Deep power down and fast wake-up enabled, typical current is 10 µA at 25 °C (max 30 µA). This mode retains SRAM content and register states while disabling the voltage regulator - ideal for battery-backed applications requiring sub-100 µA quiescent consumption.