STMicroelectronics STM32F401VDT6TR

Overview

STM32F401VDT6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 84 MHz, featuring 256 KB Flash, 64 KB SRAM, and integrated USB 2.0 FS OTG controller with on-chip PHY. It delivers 105 DMIPS and supports 12-bit ADC (2.4 MSPS), up to 11 communication interfaces (including 3×I²C, 3×USART, 4×SPI), and advanced low-power modes down to 2.4 µA in Standby - deployed in industrial HMI, portable medical sensors, and smart metering gateways.

For engineers reviewing the STM32F401VDT6TR datasheet, STM32F401VDT6TR pinout, STM32F401VDT6TR application, or STM32F401VDT6TR equivalent, key selection criteria include Flash/SRAM capacity, 84 MHz real-time performance with ART Accelerator™, 5 V-tolerant GPIO count (up to 78 at 42 MHz), USB OTG FS integration, and sub-10 µA Stop mode current with RTC retention.

Technical Context

The device implements an Arm Cortex-M4 core with hardware FPU and Memory Protection Unit (MPU), paired with ST's Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 84 MHz. Its clock system integrates four oscillators: 4–26 MHz external crystal, 16 MHz factory-trimmed RC, 32 kHz RTC oscillator, and 32 kHz internal RC - all supporting dynamic voltage scaling and multiple low-power modes.

Peripheral architecture features a multi-AHB bus matrix, 16-stream DMA with FIFOs, nested vectored interrupt controller (NVIC), and dedicated hardware blocks for CRC calculation, 96-bit unique ID, and subsecond-accurate RTC with hardware calendar. All I/Os are 5 V tolerant, and the USB OTG FS controller includes integrated PHY and support for device/host/OTG roles.

Key Specifications

Pinout & Package

STM32F401VDT6TR uses the LQFP100 (14 × 14 mm) package with 100 pins, ECOPACK2-compliant. Pin functions are validated per ST's DS9716 Rev 11 datasheet Section 4 (Pinouts and pin description).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F401VDT6TR, the STM32F411CEU6 trades USB integration for doubled Flash capacity, while the STM32L431RCT6 sacrifices USB OTG and real-time performance to achieve nanoamp-level standby - making the VDT6TR optimal for cost-sensitive, USB-connected edge devices requiring balanced performance and power.

Availability

STM32F401VDT6TR is available at Aetrix Electronics and suitable for industrial HMI, portable medical sensors, and smart metering gateways requiring stable component supply across long production lifecycles.

Supply support for STM32F401VDT6TR 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 products for industrial, automotive, and consumer markets.

The STM32F4 Series targets high-performance embedded applications demanding real-time processing, rich connectivity, and efficient power management - especially where USB, audio, or motor control interfaces are essential.

FAQ

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

The STM32F401VDT6TR operates at up to 84 MHz using its internal PLL, fed by either the 4–26 MHz external crystal oscillator or the 16 MHz internal RC oscillator. The ART Accelerator™ enables zero-wait-state execution from Flash at this frequency, eliminating instruction fetch stalls and ensuring deterministic real-time behavior without requiring code relocation to SRAM.

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 hardware. It includes a built-in PHY, session detection, and VBUS sensing, allowing dynamic role switching (e.g., acting as a USB device when connected to a PC, or as a host when reading from a USB flash drive) without external components.

How many I/O pins are 5 V tolerant and what is their practical advantage?

All 81 GPIOs are 5 V tolerant across the full VDD range (1.7–3.6 V). This allows direct interfacing with 5 V logic families (e.g., legacy UART peripherals, industrial sensors, or discrete MOSFET drivers) without external level shifters - reducing BOM cost, board space, and signal integrity risks in mixed-voltage systems.

What low-power modes are available and which one retains RTC with lowest current?

Four low-power modes are supported: Sleep, Stop, Standby, and VBAT. In Standby mode with RTC enabled and VBAT supplied, current drops to 12 µA at 85 °C. With VBAT only (no main supply), RTC runs at 1 µA - enabling calendar-based wakeups for energy-harvesting or battery-backed applications.