Mechanical Dimensions & Land Pattern (WLCSP-68(3.1x3.2))
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-68(3.1x3.2) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — STM32U375RGY6QTR (WLCSP-68(3.1x3.2))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of STM32U375RGY6QTR (WLCSP-68(3.1x3.2))?
Manufactured by ST, the STM32U375RGY6QTR is housed in a WLCSP-68(3.1x3.2) package with 68 pins and a 0.35 mm lead pitch, supporting a VCC supply range of 1.71 V to 3.6 V. Key pins include: A1 (VDD: Power Supply Input (VDD — 3.3V VDD (Max 4.0V))), A3 (PA15(JTDI): Multiplexed I/O & Peripheral Pin PA15(JTDI) (UART, SPI, SWD/JTAG)), A5 (PB5: Multiplexed I/O & Peripheral Pin PB5 (UART, SPI, I2C)), A7 (PB9: Multiplexed I/O & Peripheral Pin PB9 (SPI)), A9 (VDD: Power Supply Input (VDD — 3.3V VDD (Max 4.0V))), B2 (VDDUSB: Power Supply Input (VDDUSB — 3.3V VDD (Max 4.0V))).
What are the IPC-7351B PCB Footprint dimensions for STM32U375RGY6QTR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32U375RGY6QTR (WLCSP-68(3.1x3.2)) has a nominal body envelope of 3.20 × 3.10 mm, pitch e = 0.35 mm, and 68 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32U375RGY6QTR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32U375RGY6QTR (ST, WLCSP-68(3.1x3.2)) 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 (68 pins) & STM32U375 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). |
| A3 | PA15(JTDI) | Digital_IO | Signal terminal PA15(JTDI) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_RTS. Supported peripheral buses: UART, SPI, SWD/JTAG. |
| A5 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3. Supported peripheral buses: UART, SPI, I2C. |
| A7 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: SPI. |
| A9 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| B2 | VDDUSB | Power_In | Primary positive power supply input (VDDUSB) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| B4 | PB3(JTDO/ TRACESWO) | Digital_IO | Signal terminal PB3(JTDO/ TRACESWO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C1_SDA, SPI1SCK, SPI3. Supported peripheral buses: SPI, I2C, SWD/JTAG. |
| B6 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: SPI, 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). |
| C1 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: USB_DP. Supported peripheral buses: USB, UART, SPI. |
| C3 | PA14(JTCK/ SWCLK) | Digital_IO | Signal terminal PA14(JTCK/ SWCLK) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SMBA, I2C1_SMBA, I2C3_SMBA. Supported peripheral buses: I2C, SWD/JTAG. |
| C5 | PH3BOOT0 - (PH3) | Digital_IO | Signal terminal PH3BOOT0 - (PH3) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH3BOOT0 - (PH3). Supported peripheral buses: I2C. |
| C7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| C9 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB9. Supported peripheral buses: General. |
| D2 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| D4 | PB4(NJTRST) | Digital_IO | Signal terminal PB4(NJTRST) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SDA, SPI1_MISO. Supported peripheral buses: UART, SPI, I2C, SWD/JTAG. |
| D6 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| D8 | IOD8 | Digital_IO | General Purpose Digital I/O Pin IOD8 |
| E1 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: USB_DM. Supported peripheral buses: USB, UART, SPI. |
| E3 | PA13(JTMS/ SWDIO) | Digital_IO | Signal terminal PA13(JTMS/ SWDIO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA13(JTMS/ SWDIO). Supported peripheral buses: USB, SWD/JTAG. |
| E5 | 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. |
| E7 | IOE7 | Digital_IO | General Purpose Digital I/O Pin IOE7 |
| E9 | PC14-OSC32_IN | Digital_IO | Signal terminal PC14-OSC32_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC14-OSC32_IN. Supported peripheral buses: RTC/CLK. |
| F2 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA10. Supported peripheral buses: RTC/CLK. |
| F4 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB6. Supported peripheral buses: I2C, PWM. |
| F6 | PC13 | Digital_IO | Signal terminal PC13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: RTC/CLK. |
| F8 | PH0OSC IN (- PH0)_ | Digital_IO | Signal terminal PH0OSC IN (- PH0)_ (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH0OSC IN (- PH0)_. Supported peripheral buses: RTC/CLK. |
| G1 | PB15 | Digital_IO | Signal terminal PB15 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB15. Supported peripheral buses: PWM, RTC/CLK. |
| G3 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: UART, SPI, RTC/CLK. |
| G5 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: SPI, I2C. |
| G7 | PH1 - OSC OUT (PH_1) | Digital_IO | Signal terminal PH1 - OSC OUT (PH_1) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH1 - OSC OUT (PH_1). Supported peripheral buses: RTC/CLK. |
| G9 | PH0-OSC_IN | Digital_IO | Signal terminal PH0-OSC_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH0-OSC_IN. Supported peripheral buses: RTC/CLK. |
| H2 | PA8 | Digital_IO | Signal terminal PA8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_DY_12TRACE. Supported peripheral buses: SPI, RTC/CLK. |
| H4 | PA2 | Digital_IO | Signal terminal PA2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_RDY_LPUART1TXOCTOS. Supported peripheral buses: SPI. |
| H6 | PA0 | Digital_IO | Signal terminal PA0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_RDY_UART4TXAUDIOCLK. Supported peripheral buses: UART, SPI. |
| H8 | NRST(NRST) | Digital_IO | Signal terminal NRST(NRST) (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: NRST(NRST). Supported peripheral buses: General. |
| J1 | PB14 | Digital_IO | Signal terminal PB14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MISO. Supported peripheral buses: SPI, I2C. |
| J3 | PA7 | Digital_IO | Signal terminal PA7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SCL, SPI1_MO, SPI1_IO2. Supported peripheral buses: SPI, I2C, ADC. |
| J5 | PA5 | Digital_IO | Signal terminal PA5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1. Supported peripheral buses: SPI, ADC, DAC, PWM. |
| J7 | VSSA | GND | 0V electrical ground return terminal (VSSA) for internal core logic, I/O drivers, and analog sub-blocks. |
| J9 | NRST | Digital_IO | Active-low hardware reset terminal (NRST): pulling this pin Low resets the processor core and peripherals. |
| K2 | PB13 | Digital_IO | Signal terminal PB13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SCL, SPI2_SCK. Supported peripheral buses: UART, SPI, I2C, PWM. |
| K4 | PB0 | Digital_IO | Signal terminal PB0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_NSS. Supported peripheral buses: UART, SPI, ADC. |
| K6 | PA4 | Digital_IO | Signal terminal PA4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_NSS, SPI3_NSS. Supported peripheral buses: SPI, ADC, DAC. |
| K8 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| L1 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| L3 | VSSSMPS | GND | 0V electrical ground return terminal (VSSSMPS) for internal core logic, I/O drivers, and analog sub-blocks. |
| L5 | PB1 | Digital_IO | Signal terminal PB1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB1. Supported peripheral buses: UART, ADC. |
| L7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| L9 | PC3 | Digital_IO | Signal terminal PC3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC3. Supported peripheral buses: General. |
| M2 | VDD11 | Power_In | Primary positive power supply input (VDD11) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| M4 | VLXSMPS | Digital_IO | Signal terminal VLXSMPS (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VLXSMPS. Supported peripheral buses: General. |
| M6 | PA6 | Digital_IO | Signal terminal PA6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_. Supported peripheral buses: UART, SPI, I2C, ADC. |
| M8 | PA3 | Digital_IO | Signal terminal PA3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA3. Supported peripheral buses: SPI, ADC. |
| N1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| N3 | VDDSMPS | Power_In | Primary positive power supply input (VDDSMPS) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| N5 | PB2 | Digital_IO | Signal terminal PB2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SCLOCTOSPI. Supported peripheral buses: I2C, RTC/CLK. |
| N7 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| N9 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| P2 | VDD11 | Power_In | Primary positive power supply input (VDD11) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| P4 | VLXSMPS | Digital_IO | Signal terminal VLXSMPS (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VLXSMPS. Supported peripheral buses: General. |
| P6 | PA4 | Digital_IO | Signal terminal PA4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA4. Supported peripheral buses: General. |
| P8 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| R1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |












