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STMicroelectronics STM32F401CEY6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F401CEY6TR STM32F4 ARM Cortex-M4 MCU, 84 MHz

MPNSTM32F401CEY6TR
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STMicroelectronics STM32F4 series STM32F401CEY6TR, 32-Bit Single-Core ARM Cortex-M4, 84 MHz, 512 KB Flash, 96K x 8 RAM, 49-WLCSP, -40°C~85°C.

$5.0552Ref. price · indicative, final on quote
STMicroelectronics STM32F401CEY6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F401CEY6TR 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 size512KB (512K x 8)

Product details

The Cortex-M4 includes a single-cycle multiply and hardware FPU, so floating-point math in control loops or audio processing doesn't bog the core.

The 0.4 mm or 0.5 mm ball pitch typical of WLCSP means the escape routing uses microvias or fine-line traces. The 36 I/O count leaves room for a sensor array plus a display or UART bridge.

Peripherals include I²C, SPI, UART/USART, USB OTG, SDIO, I²S, and IrDA, plus a 10-channel 12-bit ADC. The internal oscillator trims the BOM by one external crystal for many applications.

Frequently asked questions

Is STM32F401CEY6TR a replacement for STM32F401CEY6?

The base product number is STM32F401, and the suffix 'TR' typically indicates Tape & Reel packaging. The STM32F401CEY6 (without TR) is the same die in a different shipping medium. Functionally they are identical; the TR version is the reeled variant for automated assembly.