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STMicroelectronics STM32F401VET6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F401VET6 STM32F4 ARM Cortex-M4 MCU, 84 MHz

MPNSTM32F401VET6
Active

STMicroelectronics STM32F401VET6, STM32F4 series, 32-bit ARM Cortex-M4 single-core MCU, 84 MHz, 512 KB Flash, 96K x 8 RAM, USB OTG, 81 I/O, 100-LQFP, -40°C ~ 85°C, 1.7V ~ 3.6V.

$8.9600Ref. price · indicative, final on quote
STMicroelectronics STM32F401VET6 datasheet (PDF)
Packaging100-LQFP
RoHSROHS3 Compliant
SeriesSTM32F4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F401VET6 specifications
ParameterValue
SeriesSTM32F4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.7V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed84MHz
PackageTray
RAM size96K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SDIO, SPI, UART/USART, USB OTG
Number of i (O)81
Core processorARM® Cortex®-M4
Case100-LQFP
Data convertersA/D 16x12b
Program memory size512KB (512K x 8)

Product details

512 KB Flash, 96 KB SRAM — sizing the firmware image and heap

Program memory is 512 KB of Flash, organised as 512 K x 8, with the usual STM32F4 sector layout (four 16 KB sectors, one 64 KB, and seven 128 KB sectors). The 96 KB SRAM splits between a main 64 KB block and a 32 KB CCM (core-coupled memory) accessible only by the CPU — no DMA. That CCM region is ideal for interrupt stacks or time-critical loops, but watch the linker script: placing a DMA buffer there will silently fail.

USB OTG, 81 I/O, and the peripheral mix

Connectivity includes USB OTG (full-speed), three SPI, three I²C, six UART/USART, SDIO, and I²S — enough for a sensor hub or a small HMI panel. Brown-out detect, POR, and a windowed watchdog are on-chip, so external supervisor ICs are optional for most industrial designs.

For procurement, this means the part is factory-supported and can be specified into production without near-term obsolescence risk.

Frequently asked questions

Does STM32F401VET6 have USB OTG?

Yes, the connectivity list includes USB OTG. This supports full-speed host and device modes, useful for USB flash drive logging or direct PC connection without an external PHY.

What is the flash memory size of STM32F401VET6?

This is sufficient for an RTOS, middleware stacks, and a moderate application binary.

Is STM32F401VET6 a replacement for STM32F405VGT6?

The STM32F401VET6 and STM32F405VGT6 share the same 100-LQFP footprint and ARM Cortex-M4 core, but the STM32F405VGT6 runs at 168 MHz and offers 1 MB Flash, a FPU with higher performance, and additional peripherals. The STM32F401VET6 operates at 84 MHz with 512 KB Flash. They are not drop-in replacements — a firmware port and clock-tree rework are required.