STMicroelectronics STM32F401VBT6TR

Overview

STM32F401VBT6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, delivering 105 DMIPS at 84 MHz, featuring 256 KB Flash, 64 KB SRAM, and integrated USB 2.0 FS OTG controller with on-chip PHY. It supports 1×12-bit 2.4 MSPS ADC (16 channels), up to 11 communication interfaces (including 3×I²C, 3×USART, 4×SPI), and operates across -40 °C to 85 °C in LQFP100 package - used in industrial HMI, sensor fusion gateways, and USB-connected embedded controllers.

For engineers reviewing the STM32F401VBT6TR datasheet, STM32F401VBT6TR pinout, STM32F401VBT6TR application, or STM32F401VBT6TR equivalent, key selection factors include ART Accelerator™-enabled zero-wait-state Flash execution, 5 V-tolerant I/Os (up to 81 pins), low-power Stop mode (10 µA typ), RTC with subsecond accuracy, and hardware CRC unit for firmware integrity verification.

Technical Context

The STM32F401VBT6TR implements an Arm Cortex-M4 core with floating-point unit and Adaptive Real-time Accelerator (ART Accelerator™) that eliminates Flash wait states at 84 MHz, enabling deterministic real-time response. Its memory subsystem includes 256 KB of embedded Flash with ECC support, 64 KB SRAM, and 512 bytes of OTP for secure configuration storage.

Peripherals are organized via a multi-AHB bus matrix supporting concurrent DMA transfers across 16-stream controllers. Clocking uses dual oscillators (4–26 MHz HSE + 32 kHz LSE), internal 16 MHz RC, and PLL-based system clock generation - all managed by a dedicated reset and power control block with POR, PDR, PVD, and BOR.

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 Cortex-M4 microcontroller applications.

Compared with STM32F401VBT6TR, the STM32F411CEU6 trades USB integration for doubled Flash capacity, while the STM32F072RBT6 reduces core performance and peripheral count to meet entry-level USB device requirements - making the VBT6TR optimal for balanced compute, analog, and connectivity demands.

Availability

STM32F401VBT6TR is available at Aetrix Electronics and suitable for industrial HMI, USB sensor gateways, motor control edge nodes, and secure firmware update modules requiring stable component supply across extended product lifecycles.

Supply support for STM32F401VBT6TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32F401 line targets cost-optimized, power-efficient Cortex-M4 applications requiring USB connectivity and rich analog integration - designed for industrial automation, consumer electronics, and smart sensor systems.

FAQ

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

The STM32F401VBT6TR achieves 84 MHz maximum system clock via its main PLL, fed by either the 4–26 MHz HSE crystal oscillator or internal 16 MHz HSI. The ART Accelerator™ eliminates Flash wait states at this frequency, enabling true zero-wait-state execution from embedded Flash memory - confirmed in DS9716 Rev 11 Section 3.2 and Table 66.

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

Yes - the integrated USB 2.0 full-speed OTG controller supports device, host, and dual-role (OTG) operation. Mode selection is controlled by software configuration of the USB_OTG_GCCFG register and detection of ID pin state. External VBUS sensing and session request (SRP) are supported per USB OTG specification - detailed in Section 3.26 and RM0368 Reference Manual.

How many I/O pins are 5 V tolerant and what is their voltage rating?

All 81 GPIO pins are 5 V tolerant, meaning they safely accept input voltages up to 5.5 V regardless of VDD level (1.7–3.6 V). This is verified in Section 6.3.16 (I/O port characteristics) of DS9716 Rev 11, Table 54, and applies to all alternate functions including USART TX, SPI MOSI, and I²C SDA/SCL.

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

Four low-power modes are supported: Sleep, Stop (with Flash in Stop or Deep Power Down), and Standby. Minimum current is 10 µA typ @25°C in Stop mode with Flash in Deep Power Down and regulators disabled - measured under VDD = 1.8 V, per Table 27 and Section 3.17 of DS9716 Rev 11. RTC remains active with VBAT supply drawing only 1 µA.