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STMicroelectronics STM32F412REY6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F412REY6TR STM32F4 ARM Cortex-M4 MCU, 100MHz

MPNSTM32F412REY6TR
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STMicroelectronics STM32F412REY6TR, STM32F4 series, 32-bit ARM Cortex-M4 MCU, 100MHz, 512KB Flash, 256KB SRAM, 50 I/O, CANbus/EBI/EMI/I²C/SPI/UART/USB OTG, 1.7V-3.6V, -40 to 85°C, 64-WLCSP.

$10.5200Ref. price · indicative, final on quote
STMicroelectronics STM32F412REY6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F412REY6TR 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); Cut Tape (CT)
RAM size256K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD/SDIO, QSPI, SPI, UART/USART, USB OTG
Number of i (O)50
Core processorARM® Cortex®-M4
Case64-UFBGA, WLCSP
Data convertersA/D 16x12b
Program memory size512KB (512K x 8)

Product details

ARM Cortex-M4 at 100 MHz in a WLCSP footprint

The 64-WLCSP package (3.62 x 3.65 mm) saves board area but demands careful handling: the fine pitch means X-ray inspection is the norm for rework, and the MSL rating should be confirmed before the reel hits the reflow oven.

Supply voltage and peripheral set

The peripheral list includes CANbus, USB OTG, QSPI, multiple SPI/I²C/UART, and an EBI/EMI interface for external memory or FPGA glue — a flexible set for a gateway or display controller. 50 I/O lines in a 64-ball package — the WLCSP ballout needs a verified footprint from the STM32F412 reference design, not a generic 0.4 mm pitch pattern.

The STM32F412 family has broad second-source availability through ST's own distribution network; no pin-compatible second-source from another vendor is documented in the ST cross-reference.

Frequently asked questions

What is the closest pin-compatible alternative to STM32F412REY6TR?

Within the STM32F412 family, the base product number STM32F412 covers multiple Flash/SRAM density options in the same 64-WLCSP footprint. The STM32F412RET6 (LQFP-64) is a common through-hole alternative but uses a different package — not pin-compatible with the WLCSP. For a WLCSP drop-in, compare the STM32F412CEY6 (512 KB Flash, 128 KB SRAM) or STM32F412VEY6 (1 MB Flash, 256 KB SRAM) if the memory budget differs. No second-source vendor offers a direct pin-compatible part.

What is STM32F412REY6TR's listed speed?

The core runs at 100 MHz, which is the maximum clock for the STM32F412 series. At that speed, the Flash requires one wait state — the STM32 HAL configures this automatically during SystemClock_Config.