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STMicroelectronics STM32F411RET6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F411RET6TR ARM Cortex-M4 MCU, 100 MHz, 512 KB Flash

MPNSTM32F411RET6TR
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STMicroelectronics STM32F4 series, ARM Cortex-M4 32-bit MCU, STM32F411RET6TR, 100 MHz, 512 KB Flash, 128K x 8 RAM, 50 I/O, 64-LQFP, -40°C to 85°C.

$8.4300Ref. price · indicative, final on quote
STMicroelectronics STM32F411RET6TR datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32F4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F411RET6TR 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 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)50
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 16x12b
Program memory size512KB (512K x 8)

Product details

Flash and RAM sizing — firmware headroom and runtime budget

512 KB of Flash (512K x 8) is sized for moderate-complexity firmware: a FreeRTOS kernel, USB stack, and a sensor-fusion library fit with room for OTA staging if you partition the last sector. The 128K x 8 SRAM covers the stack, heap, and double-buffered ADC or display frames.

Connectivity and I/O — what is on the pins

The STM32F411RET6TR brings out 50 I/Os from the 64-LQFP package, with connectivity options that cover most embedded scenarios: I²C for sensors and EEPROMs, SPI for displays and ADCs, UART/USART for RS-232 or RS-485 transceivers, USB OTG for host/device mode, and SDIO for external Flash or SD cards.

For production BOMs, this means you can qualify the part into a new design without planning a near-term spin for obsolescence.

Package and mounting — 64-LQFP footprint notes

The 64-LQFP (10x10 mm body) is a common fine-pitch package with 0.5 mm lead pitch. Surface-mount reflow per IPC/JEDEC J-STD-020.

Frequently asked questions

What is the difference between STM32F411RET6TR and STM32F411RE?

The STM32F411RET6TR is functionally identical to the STM32F411RE — same 100 MHz Cortex-M4 core, 512 KB Flash, 128K x 8 RAM, and 64-LQFP package. The only difference is the TR suffix, which indicates Tape & Reel packaging for automated assembly versus the tray or tube format of the base part number.