STMicroelectronics STM32F401VDT6

Overview

STM32F401VDT6 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 front-ends requiring real-time sensor fusion and USB device connectivity.

For engineers reviewing the STM32F401VDT6 datasheet, STM32F401VDT6 pinout, STM32F401VDT6 application, or STM32F401VDT6 equivalent, key selection criteria include Flash/SRAM capacity, 84 MHz max CPU frequency with ART Accelerator, 5 V-tolerant GPIO count (78 pins), USB OTG FS support, and low-power Stop mode current (10 µA in Deep power down).

Technical Context

The device integrates an adaptive real-time accelerator (ART) enabling zero-wait-state execution from Flash memory, paired with a memory protection unit (MPU) for secure task isolation in RTOS environments. Its clock system supports four oscillators: 4–26 MHz external crystal, 16 MHz factory-trimmed RC, 32 kHz RTC oscillator with calibration, and 32 kHz internal RC.

Power architecture includes three low-power modes (Stop with Flash retention or Deep power down, Standby), with sub-2.4 µA Standby current and hardware RTC calendar. Peripheral interconnect uses multi-AHB bus matrix to sustain concurrent DMA transfers across 16-stream controllers and 11 timers - six 16-bit and two 32-bit - each supporting PWM, quadrature encoder, and IC/OC functions.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 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, the STM32F401VDT6 trades peripheral richness and crypto support for lower cost and power; versus STM32F072RBT6, it delivers 2.1× higher DMIPS, full USB OTG flexibility, and 4× more SRAM - making it optimal for mid-tier embedded applications balancing performance, connectivity, and BOM cost.

Availability

STM32F401VDT6 is available at Aetrix Electronics and suitable for industrial HMI front-ends, portable diagnostic tools, and smart energy meters requiring stable component supply and long-term production continuity.

Supply support for STM32F401VDT6 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 analog products for industrial, automotive, and consumer markets.

The STM32F4 series targets high-performance embedded applications demanding DSP capability, rich connectivity, and real-time responsiveness - optimized for motor control, audio processing, and USB-enabled edge devices.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F401VDT6 achieves 84 MHz maximum CPU frequency using its internal PLL driven by either the 4–26 MHz external crystal oscillator or the 16 MHz internal RC oscillator. The ART Accelerator ensures zero-wait-state execution from Flash memory at this speed, validated by Dhrystone 2.1 benchmark yielding 105 DMIPS.

Does this MCU support USB device, host, and OTG functionality simultaneously?

Yes - the integrated USB 2.0 full-speed OTG controller supports device, host, and OTG roles in a single silicon instance. It includes an on-chip PHY, eliminating external transceivers, and complies with USB 2.0 specification for enumeration, suspend/resume, and descriptor handling in all modes.

How many I/O pins are 5 V-tolerant and what is their significance?

All 78 fast I/O pins are 5 V-tolerant while operating from a 1.7–3.6 V supply. This allows direct interfacing with legacy 5 V logic (e.g., RS-232 drivers, optocouplers, or older microcontrollers) without level-shifting circuitry - reducing PCB layer count, BOM cost, and signal integrity risk in mixed-voltage designs.

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

The MCU supports Sleep, Stop (with Flash retention or Deep power down), and Standby modes. In Stop mode with Flash in Deep power down and fast wake-up enabled, typical current draw is 10 µA at 25 °C - verified under VDD = 1.8 V, making it suitable for battery-powered applications requiring infrequent wake-ups (e.g., hourly sensor reads).