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STMicroelectronics STM32F401RBT6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F401RBT6 STM32F4 ARM Cortex-M4 MCU, 84 MHz, 128KB Flash

MPNSTM32F401RBT6
Active

STMicroelectronics STM32F4 series, STM32F401RBT6, 32-bit ARM Cortex-M4 MCU, 84 MHz, 128KB Flash, 64KB SRAM, USB OTG, 50 I/O, 64-LQFP (10x10 mm), -40°C to 85°C.

$6.4000Ref. price · indicative, final on quote
STMicroelectronics STM32F401RBT6 datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32F4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F401RBT6 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 size64K 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)50
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 16x12b
Program memory size128KB (128K x 8)

Product details

The STM32F401RBT6: The 84 MHz core, combined with the ART Accelerator (flash prefetch), keeps the pipeline fed without wait states for most code — so the headline speed is real throughput, not a marketing number.

64-LQFP — rework-friendly, layout-practical

The 64-LQFP package (10x10 mm) is surface-mount only. All dissipation goes through the leads.

ROHS3 compliant.

It is not AEC-Q100 qualified, so it is not the pick for under-hood automotive, but it handles the typical industrial environment without derating concerns.

Frequently asked questions

Does STM32F401RBT6 support USB OTG?

Yes, USB OTG is included in the connectivity set, allowing dual-role host/device operation without an external controller.

What is the maximum speed of STM32F401RBT6?

The core runs at 84 MHz. That is the maximum clock for this part, with the ART Accelerator keeping flash access single-cycle for most code.

What is an equivalent or replacement for STM32F401RBT6?

The STM32L151CBU6A is a lower-power Cortex-M3 alternative at 32 MHz with similar peripherals, but it is not a pin-compatible drop-in — it uses a different core, lower speed, and different package. For a true STM32F4 replacement, look at the STM32F401RCT6 (256 KB Flash) or STM32F405RGT6 (1 MB Flash) within the same series, though pin compatibility varies by density.