Mechanical Dimensions & Land Pattern (WLCSP-90(4x4.2))
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit WLCSP-90(4x4.2) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — STM32F405OGY6TR (WLCSP-90(4x4.2))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of STM32F405OGY6TR (WLCSP-90(4x4.2))?
Manufactured by ST, the STM32F405OGY6TR is housed in a WLCSP-90(4x4.2) package with 90 pins and a 0.40 mm lead pitch, supporting a VCC supply range of 1.8 V to 3.6 V. Key pins include: A1 (VDD: Power Supply Input (VDD — 3.3V VDD (Max 4.0V))), A2 (PA14 (JTCK/SWCLK): Multiplexed I/O & Peripheral Pin PA14 (JTCK/SWCLK) (SWD/JTAG)), A3 (PC12: Multiplexed I/O & Peripheral Pin PC12 (UART, SPI)), A4 (PD4: Multiplexed I/O & Peripheral Pin PD4 (UART)), A5 (PD7: Multiplexed I/O & Peripheral Pin PD7 (UART)), A6 (PB4 (NJTRST): Multiplexed I/O & Peripheral Pin PB4 (NJTRST) (SPI, SWD/JTAG)).
What are the IPC-7351B PCB Footprint dimensions for STM32F405OGY6TR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32F405OGY6TR (WLCSP-90(4x4.2)) has a nominal body envelope of 4.20 × 4.00 mm, pitch e = 0.40 mm, and 90 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32F405OGY6TR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32F405OGY6TR (ST, WLCSP-90(4x4.2)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (90 pins) & STM32F405 / STM32F407 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A2 | PA14 (JTCK/SWCLK) | Digital_IO | Signal terminal PA14 (JTCK/SWCLK) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA14 (JTCK/SWCLK). Supported peripheral buses: SWD/JTAG. |
| A3 | PC12 | Digital_IO | Signal terminal PC12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MOSI_. Supported peripheral buses: UART, SPI. |
| A4 | PD4 | Digital_IO | Signal terminal PD4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD4. Supported peripheral buses: UART. |
| A5 | PD7 | Digital_IO | Signal terminal PD7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD7. Supported peripheral buses: UART. |
| A6 | PB4 (NJTRST) | Digital_IO | Signal terminal PB4 (NJTRST) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MISO, SPI1_MISO. Supported peripheral buses: SPI, SWD/JTAG. |
| A7 | BOOT0 | Digital_IO | Signal terminal BOOT0 (I, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: BOOT0. Supported peripheral buses: General. |
| A8 | PDR_ON | Digital_IO | Signal terminal PDR_ON (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PDR_ON. Supported peripheral buses: General. |
| A9 | PC13 | Digital_IO | Signal terminal PC13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: RTC/CLK. |
| A10 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| B1 | VCAP_2 | Digital_IO | Signal terminal VCAP_2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VCAP_2. Supported peripheral buses: General. |
| B2 | PI1 | Digital_IO | Signal terminal PI1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: SPI. |
| B3 | PA15 (JTDI) | Digital_IO | Signal terminal PA15 (JTDI) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_NSS, SPI1_NSS. Supported peripheral buses: SPI, PWM, SWD/JTAG. |
| B4 | PD2 | Digital_IO | Signal terminal PD2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD2. Supported peripheral buses: UART. |
| B5 | PD6 | Digital_IO | Signal terminal PD6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD6. Supported peripheral buses: UART. |
| B6 | PB3 (JTDO/ TRACESWO) | Digital_IO | Signal terminal PB3 (JTDO/ TRACESWO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCK, SPI1_SCK. Supported peripheral buses: SPI, SWD/JTAG. |
| B7 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SDA. Supported peripheral buses: UART, I2C. |
| B8 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| B9 | PC15/ OSC32_OUT (PC15) | Digital_IO | Signal terminal PC15/ OSC32_OUT (PC15) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC15/ OSC32_OUT (PC15). Supported peripheral buses: RTC/CLK. |
| B10 | PC14/OSC32_IN (PC14) | Digital_IO | Signal terminal PC14/OSC32_IN (PC14) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC14/OSC32_IN (PC14). Supported peripheral buses: RTC/CLK. |
| C1 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA11. Supported peripheral buses: UART, CAN. |
| C2 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA12. Supported peripheral buses: UART, CAN. |
| C3 | PI0 | Digital_IO | Signal terminal PI0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: SPI. |
| C4 | PC11 | Digital_IO | Signal terminal PC11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MISO. Supported peripheral buses: UART, SPI. |
| C5 | PD1 | Digital_IO | Signal terminal PD1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD1. Supported peripheral buses: CAN. |
| C6 | PD5 | Digital_IO | Signal terminal PD5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD5. Supported peripheral buses: UART. |
| C7 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SCL. Supported peripheral buses: UART, I2C, CAN. |
| C8 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS, I2C1_SDA. Supported peripheral buses: SPI, I2C, CAN. |
| C9 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| C10 | PA0/WKUP (PA0) | Digital_IO | Signal terminal PA0/WKUP (PA0) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA0/WKUP (PA0). Supported peripheral buses: UART, ADC. |
| D1 | PA8 | Digital_IO | Signal terminal PA8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SCL. Supported peripheral buses: UART, I2C, RTC/CLK. |
| D2 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SMBA. Supported peripheral buses: UART, I2C. |
| D3 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA10. Supported peripheral buses: UART. |
| D4 | PA13 (JTMSSWDIO) - | Digital_IO | Signal terminal PA13 (JTMSSWDIO) - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA13 (JTMSSWDIO) -. Supported peripheral buses: SWD/JTAG. |
| D5 | PC10 | Digital_IO | Signal terminal PC10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCK. Supported peripheral buses: UART, SPI. |
| D6 | PD0 | Digital_IO | Signal terminal PD0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD0. Supported peripheral buses: CAN. |
| D7 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SMBA, SPI1_MOSI, SPI3_MOSI. Supported peripheral buses: SPI, I2C, PWM, CAN. |
| D8 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SCL. Supported peripheral buses: UART, I2C, CAN. |
| D9 | BYPASS_REG | Digital_IO | Signal terminal BYPASS_REG (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: BYPASS_REG. Supported peripheral buses: General. |
| D10 | PC2 | Digital_IO | Signal terminal PC2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MISO. Supported peripheral buses: SPI, ADC. |
| E1 | PC7 | Digital_IO | Signal terminal PC7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC7. Supported peripheral buses: UART. |
| E2 | PC8 | Digital_IO | Signal terminal PC8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC8. Supported peripheral buses: UART. |
| E3 | PC9 | Digital_IO | Signal terminal PC9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SDA. Supported peripheral buses: I2C, RTC/CLK. |
| E4 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E5 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E6 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E8 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E9 | PC3 | Digital_IO | Signal terminal PC3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, ADC. |
| E10 | PC0 | Digital_IO | Signal terminal PC0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC0. Supported peripheral buses: ADC. |
| F1 | PD15 | Digital_IO | Signal terminal PD15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD15. Supported peripheral buses: General. |
| F2 | PD14 | Digital_IO | Signal terminal PD14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD14. Supported peripheral buses: General. |
| F3 | PC6 | Digital_IO | Signal terminal PC6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC6. Supported peripheral buses: UART. |
| F4 | VCAP_1 | Digital_IO | Signal terminal VCAP_1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VCAP_1. Supported peripheral buses: General. |
| F5 | PE14 | Digital_IO | Signal terminal PE14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE14. Supported peripheral buses: General. |
| F6 | PE10 | Digital_IO | Signal terminal PE10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE10. Supported peripheral buses: General. |
| F7 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| F8 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: UART, ADC. |
| F9 | PH1/OSC_OUT (PH1) | Digital_IO | Signal terminal PH1/OSC_OUT (PH1) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH1/OSC_OUT (PH1). Supported peripheral buses: RTC/CLK. |
| F10 | PH0/OSC_IN (PH0) | Digital_IO | Signal terminal PH0/OSC_IN (PH0) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH0/OSC_IN (PH0). Supported peripheral buses: RTC/CLK. |
| G1 | PD11 | Digital_IO | Signal terminal PD11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD11. Supported peripheral buses: UART. |
| G2 | PD12 | Digital_IO | Signal terminal PD12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD12. Supported peripheral buses: UART. |
| G3 | PD10 | Digital_IO | Signal terminal PD10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD10. Supported peripheral buses: UART. |
| G4 | PE15 | Digital_IO | Signal terminal PE15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE15. Supported peripheral buses: General. |












