STM32F407ET6

STM32F407UET6 part-number check and spec note

1. Basic overview

- Manufacturer: STMicroelectronics

- Product type: 32-bit Arm Cortex-M4 high-performance microcontroller

- Family: STM32F4 / STM32F407 connectivity line

- Part-number check: based on ST's official STM32F405xx / STM32F407xx ordering rules, the "U" package or pin code in

     STM32F407UET6 does not appear to be a standard valid code for this family.

- What can be confirmed: STM32F407 points to the high-performance F4 branch, E usually means 512 KB Flash, 

      T usually points to an LQFP package, and 6 usually means the -40 C to +85 C temperature range.

2. Specs that matter for the STM32F407xE family

- Core: Arm Cortex-M4 with DSP instructions and single-precision FPU

- Max clock: 168 MHz

- Performance: about 210 DMIPS / 1.25 DMIPS per MHz

- Flash: E code typically means 512 KB

- SRAM: up to 192 KB plus 4 KB backup SRAM

- Operating voltage: 1.8 V to 3.6 V, and in some conditions down to about 1.7 V

- ADC / DAC: 3 x 12-bit ADCs, up to 2.4 MSPS, up to 24 channels, plus 2 x 12-bit DACs

- Timers: up to 17 timers, including advanced PWM, motor-control, encoder, and 32-bit timers

- Interfaces: up to 3 x I2C, 3 x SPI, USART / UART, 2 x CAN, SDIO, USB OTG FS, USB OTG HS

- Advanced connectivity: 10/100 Ethernet MAC, DCMI camera interface, FSMC, RNG, CRC

- Debug: SWD / JTAG with Cortex-M4 trace support

3. How to read the part number

- STM32: ST's 32-bit MCU family

- F: Flash-based MCU line

- 407: high-performance STM32F4 branch with Cortex-M4, FPU, DSP, Ethernet, DCMI, and strong connectivity options

- U: suspicious code, because ST normally lists codes such as R = 64 pins, O = 90 pins, V = 100 pins, Z = 144 pins, and I = 176 pins

- E: usually 512 KB Flash

- T: usually LQFP package

- 6: usually the -40 C to +85 C temperature grade

4. Where it could fit if it really maps to an STM32F407xE device

- Industrial controllers and PLC expansion

- Ethernet, CAN, USB, and SDIO communication equipment

- Camera, LCD, or SRAM expansion designs

- Data-acquisition and edge-processing systems

- Mid-to-high-end embedded platforms running RTOS, TCP/IP, USB host/device, and file systems

5. Selection and purchasing notes

- Main warning: STM32F407UET6 does not look like a standard confirmed ST ordering code, so it is better not to place an order until the code is verified.

- Likely nearby valid parts: STM32F407VET6, STM32F407ZET6, and STM32F407IET6.

- Best next step: ask for a BOM screenshot, top-marking photo, package dimensions, pin count, or supplier link.

       Once the pin count is known, it becomes much easier to judge the intended model.

- Do not substitute only by Flash size. Package, pinout, power pins, oscillator pins, debug pins, peripheral mapping, and boot pins all need to match.

6. Reference

- ST datasheet: STM32F405xx / STM32F407xx, DS8626 Rev 12, March 2026

- ST product family: STM32F407 high-performance foundation line