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STMicroelectronics STM32F401CDY6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F401CDY6TR STM32F4 ARM Cortex-M4 MCU, 84 MHz

MPNSTM32F401CDY6TR
Active

STMicroelectronics STM32F401CDY6TR, STM32F4 series, 32-bit ARM Cortex-M4 MCU, 84 MHz, 384 KB Flash, 96 KB SRAM, WLCSP-49, -40°C to 85°C.

$6.9500Ref. price · indicative, final on quote
STMicroelectronics STM32F401CDY6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F401CDY6TR 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
PackageTape & Reel (TR) Cut Tape (CT)
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)36
Core processorARM® Cortex®-M4
Case49-UFBGA, WLCSP
Data convertersA/D 10x12b
Program memory size384KB (384K x 8)

Product details

84 MHz Cortex-M4 with DSP and FPU in a WLCSP-49 footprint

It packs 384 KB of Flash and 96 KB of SRAM into a 49-ball WLCSP package, making it a dense compute option for space-constrained industrial and consumer designs that need DSP instructions and a single-precision FPU without moving to a larger BGA or QFP.

Peripheral set and I/O budget

With 36 I/Os and connectivity including I²C, SPI, UART/USART, USB OTG, SDIO, and I²S, this MCU handles sensor fusion, motor-control feedback, and audio streaming in a single chip.

Listed as Active by STMicroelectronics, so no last-time-buy risk on the horizon.

Frequently asked questions

Is STM32F401CDY6TR pin-compatible with STM32F401CCY6?

The STM32F401CCY6 is a lower-density sibling (256 KB Flash, 64 KB SRAM) in the same WLCSP-49 package and is pin-compatible. The CDY6TR offers 384 KB Flash and 96 KB SRAM, so a BOM swap requires only a firmware update — no PCB change.