STMicroelectronics STM32F401VBT6

Overview

STM32F401VBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 84 MHz, featuring 256 KB Flash, 64 KB SRAM, one 12-bit 2.4 MSPS ADC (16 channels), USB 2.0 FS OTG controller with on-chip PHY, and 81 GPIOs (78 fast I/Os @ 42 MHz, all 5 V tolerant). It targets embedded control in industrial HMI, portable medical sensors, and USB-connected IoT edge nodes.

For engineers reviewing the STM32F401VBT6 datasheet, STM32F401VBT6 pinout, STM32F401VBT6 application, or STM32F401VBT6 equivalent, key selection criteria include its ART Accelerator™ enabling zero-wait-state Flash execution, dynamic efficiency line with BAM mode for low-power sensor acquisition, and integrated USB OTG FS with internal PHY-critical for host/device/OTG firmware portability and BOM simplification.

Technical Context

The STM32F401VBT6 implements an Arm Cortex-M4 core with hardware FPU and Memory Protection Unit (MPU), supporting DSP instructions and Dhrystone 2.1 performance of 105 DMIPS at 84 MHz. Its Adaptive Real-time Accelerator (ART Accelerator™) eliminates Flash wait states by caching instruction fetches and branch predictions.

Clock architecture includes dual oscillators: a 4–26 MHz external crystal and factory-trimmed 16 MHz internal RC, plus dedicated 32 kHz RTC oscillator with calibration. Power management supports four low-power modes-Run, Sleep, Stop (Flash in Stop or Deep power-down), and Standby-with sub-µA RTC backup (1 µA @25 °C) and 2.4 µA Standby current without RTC.

Key Specifications

Pinout & Package

STM32F401VBT6 is housed in a LQFP100 (14 × 14 mm) package with exposed thermal pad, RoHS-compliant and ECOPACK2 certified. Pin functions are validated per ST's DS9716 Rev 11 datasheet Section 4 (Pinouts and pin description) and Table 8 (pin definitions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F401VBT6, the STM32F411CEU6 trades integrated USB PHY for doubled memory - advantageous for feature-rich firmware but requiring external USB hardware; the STM32G431KBT6 abandons USB entirely to deliver superior analog integration and CPU speed, targeting closed-loop power electronics rather than USB-connected edge devices.

Availability

STM32F401VBT6 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and USB-capable IoT gateways requiring stable component supply, long-lifecycle assurance, and ECOPACK2 environmental compliance.

Supply support for STM32F401VBT6 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 management ICs, MEMS, and automotive-grade components since 1987.

The STM32F4 Series targets high-performance embedded applications demanding DSP capability, rich connectivity, and real-time determinism - specifically engineered for industrial control, consumer audio, and USB-centric edge devices.

FAQ

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

The STM32F401VBT6 achieves 84 MHz maximum CPU frequency using its Arm Cortex-M4 core with ART Accelerator™, which caches instruction fetches and branch predictions to eliminate Flash wait states. This enables deterministic zero-wait-state execution directly from 256 KB on-chip Flash memory, verified under 1.7–3.6 V supply and -40 °C to +105 °C ambient conditions per DS9716 Rev 11.

Does STM32F401VBT6 support USB device functionality without external components?

Yes - it integrates a full-speed USB 2.0 OTG controller with on-chip PHY, allowing direct connection to a USB Type-A receptacle using only series resistors and ESD protection. No external transceiver, crystal, or voltage regulator is required for basic CDC ACM or DFU device operation, as confirmed in Section 3.26 and Table 65 of the official datasheet.

How many ADC channels does it support and what is the sampling rate?

The device features one 12-bit ADC supporting up to 16 external input channels with a maximum sampling rate of 2.4 MSPS (mega-samples per second) at fADC = 36 MHz. This is achievable in single-ended mode with synchronous sampling triggered by timers or software, as specified in Table 66 and Section 3.28 of DS9716 Rev 11.

What low-power modes are available and what are their typical current draws?

Four low-power modes are supported: Run (128 µA/MHz, peripherals off), Sleep (same clock domain as Run), Stop (42 µA typ @25 °C with Flash in Stop mode), and Standby (2.4 µA @25 °C/1.7 V without RTC). Deep power-down Stop mode draws as low as 10 µA typ, and VBAT RTC operation consumes 1 µA @25 °C - all values measured per Section 6.3.7 and Table 27–31 of the datasheet.