# \[Example\] STM32F4x Preliminary Design

## Description

A preliminary design for developing SMT32F4x series based project that’ll help you get started faster\.

## Project Details

- **Owner:** stevenvermaak
- **Created:** 4/12/2022
- **Last Updated:** 9/15/2024
- **Visibility:** Public

## Key Components

### ? — JTAG

**Pins:**
- GND
- GND
- GND\_DETECT
- KEY
- NC/TDI
- nRESET
- SWDCLK/TCK
- SWDIO/TMS
- SWO/TD0
- VCC

### I2C\_SCL1 — Label

**Pins:**
- P1
- P2

### I2C\_SDA — Label

**Pins:**
- P1
- P2

### I2C\_SDA1 — Label

**Pins:**
- P1
- P2

### I2C1\_SCL — Label

**Pins:**
- P1
- P2

### LED — [LED](https://flux.ai/jharwinbarrozo/led-tht~gr.md)

- Saturation Current: 93\.2e\-12A
- Emission Coefficient: 3\.73
- Breakdown Voltage: 0V
- Series Resistance: 0\.42Ω
- Forward Voltage: 1\.70

**Pins:**
- A
- K

### LED\_ON — Label

**Pins:**
- P1
- P2

### NRST — Label

**Pins:**
- P1
- P2

### NRST — Label

**Pins:**
- P1
- P2

### Q1 — [N\-Channel MOSFET](https://flux.ai/jharwinbarrozo/n-channel-mosfet~dm7.md)

**Pins:**
- DRAIN
- GATE
- SOURCE

### RESET — [Push Button](https://flux.ai/jharwinbarrozo/push-button~eqk.md)

**Pins:**
- P1
- P2

### S1 — [Push Button](https://flux.ai/jharwinbarrozo/push-button~eqk.md)

**Pins:**
- P1
- P2

### SPI\_SCK — Label

**Pins:**
- P1
- P2

### SPI1\_CS — Label

**Pins:**
- P1
- P2

### SPI1\_CS — Label

**Pins:**
- P1
- P2

### SPI1\_MISO — Label

**Pins:**
- P1
- P2

### SPI1\_MISO — Label

**Pins:**
- P1
- P2

### SPI1\_MOSI — Label

**Pins:**
- P1
- P2

### SPI1\_MOSI — Label

**Pins:**
- P1
- P2

### SPI1\_SCK — Label

**Pins:**
- P1
- P2

### TCK — Label

**Pins:**
- P1
- P2

### TCK — Label

**Pins:**
- P1
- P2

### TD0 — Label

**Pins:**
- P1
- P2

### TDI — Label

**Pins:**
- P1
- P2

### TDI — Label

**Pins:**
- P1
- P2

### TDO — Label

**Pins:**
- P1
- P2

### TMS — Label

**Pins:**
- P1
- P2

### TMS — Label

**Pins:**
- P1
- P2

### U2 — [LM75BDP,118](https://flux.ai/vasyl/lm75bdp118~vef.md)

- Manufacturer Name: NXP Semiconductors NV
- Package or Case Code: SO8
- Manufacturer Part Number: LM75BDP,118
- Datasheet URL: https://www\.nxp\.com/docs/en/data\-sheet/LM75B\.pdf
- Part Type: Integrated Circuit

**Pins:**
- A0
- A1
- A2
- GND
- OS
- SCL
- SDA
- VCC

### U3 — [MPU\-9250](https://flux.ai/jharwinbarrozo/mpu-9250~736.md)

- Manufacturer Name: TDK InvenSense
- Part Type: Integrated Circuit
- Package or Case Code: 24QFN
- Datasheet URL: https://media\.digikey\.com/pdf/Data%20Sheets/TDK%20PDFs/MPU\-9250\_Rev\_1\.1\.pdf
- Manufacturer Part Number: MPU\-9250

**Pins:**
- AD0/MISO
- AUX\_SCL
- AUX\_SDA
- CS
- FSYNC
- GND
- INT
- REGOUT
- RESV\_GND
- RESV\_VDDIO
- SCL/SCLK
- SDA/MOSI
- VDD
- VDDIO

### VDDA — Label

**Pins:**
- P1
- P2

### X1 — [Crystal Oscillator](https://flux.ai/jharwinbarrozo/crystal-oscillator~i9.md)

- Frequency: 26MHz
- Part Type: Oscillator

**Pins:**
- undefined
- undefined

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/stevenvermaak/example\-stm32f4x\-preliminary\-design\~lt](https://flux.ai/stevenvermaak/example-stm32f4x-preliminary-design~lt).*

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*Generated from [https://flux\.ai/stevenvermaak/example\-stm32f4x\-preliminary\-design\~lt](https://flux.ai/stevenvermaak/example-stm32f4x-preliminary-design~lt)*