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STMicroelectronics STM32F411CEY6UTR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F411CEY6UTR ARM Cortex-M4 MCU, 100MHz, 512KB Flash

MPNSTM32F411CEY6UTR
Active

STMicroelectronics STM32F411CEY6UTR, ARM Cortex-M4 32-bit single-core MCU, 100MHz, 512KB Flash, 128KB RAM, 36 I/O, USB OTG, 1.7–3.6V, 49-WLCSP (3×3.19mm), −40 to 85°C.

$0.5800Ref. price · indicative, final on quote
STMicroelectronics STM32F411CEY6UTR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F411CEY6UTR 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)
Speed100MHz
PackageTape & Reel (TR)
RAM size128K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, MMC/SD/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 STM32F411CEY6UTR is a 32-bit ARM Cortex-M4 single-core microcontroller from STMicroelectronics, clocked at 100 MHz with a 512 KB Flash and 128 KB RAM. It packs 36 I/O lines, USB OTG, and a full peripheral set (I²C, SPI, UART, I²S, PWM, DMA) into a 49-WLCSP package measuring 3×3.19 mm — one of the smallest footprints in the STM32F4 value line. The 1.7 V to 3.6 V supply range and −40 to 85 °C operating temperature make it suitable for compact, battery-operated or thermally constrained designs in consumer, industrial, and IoT edge nodes.

100 MHz Cortex-M4 — what the speed buys you

The 100 MHz core, combined with the single-cycle DSP extensions and FPU of the Cortex-M4, handles real-time control loops, sensor fusion, and audio processing. The 512 KB Flash and 128 KB RAM support RTOS and application code.

The 49-WLCSP (3×3.19 mm) is a wafer-level chip-scale package with solder balls directly on the die pads. It saves PCB real estate but demands a controlled solder-paste stencil and reflow profile.

Frequently asked questions

Is STM32F411CEY6UTR obsolete or still active?

The product status is marked Active, though an EOL-hot lifecycle flag suggests end-of-life planning may be underway. The part is available to order through independent distribution; current availability is confirmed at quote time.

What is the recommended replacement for STM32F411CEY6UTR?

No official successor is listed. The STM32F411CEU6 (same Cortex-M4 core, 100 MHz, 512 KB Flash, 128 KB RAM) in a UFQFPN package is the closest pin-compatible alternative for designs that can accommodate a larger footprint.

What is the flash size of STM32F411CEY6UTR?

The program memory is 512 KB (512K x 8) of Flash, paired with 128 KB (128K x 8) of SRAM.

How does STM32F411CEY6UTR compare to STM32F411CEU6?

Both share the same 100 MHz Cortex-M4 core, 512 KB Flash, and 128 KB RAM. The CEY6UTR comes in a 49-WLCSP (3×3.19 mm) for ultra-compact designs; the CEU6 uses a UFQFPN package with a larger footprint but easier assembly. I/O count and peripheral set are identical.