Mechanical Dimensions & Land Pattern (BGA-176(10x10))
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
10.00 × 10.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.35mm · e=0.65mm
Pad Size (W × L)Level B
0.30 × 0.30 mm
Pins / Total PadsTopology
201P / 201Pad (BGA_GRID)
Recommended 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 BGA-176(10x10) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — STM32H7A3IIK6 (BGA-176(10x10))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of STM32H7A3IIK6 (BGA-176(10x10))?
Manufactured by ST, the STM32H7A3IIK6 is housed in a BGA-176(10x10) package with 201 pins and a 0.65 mm lead pitch. Key pins include: A1 (VSS: Ground Reference Pin (VSS)), A2 (PB8: Multiplexed I/O & Peripheral Pin PB8 (General)), A3 (VDDLDO: Power Supply Input (VDDLDO — 3.3V VDD (Max 4.0V))), A4 (VCAP: Multiplexed I/O & Peripheral Pin VCAP (General)), A5 (PB6: Multiplexed I/O & Peripheral Pin PB6 (General)), A6 (PB3: Multiplexed I/O & Peripheral Pin PB3 (General)).
What are the IPC-7351B PCB Footprint dimensions for STM32H7A3IIK6?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32H7A3IIK6 (BGA-176(10x10)) has a nominal body envelope of 10.00 × 10.00 mm, pitch e = 0.65 mm, and 201 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32H7A3IIK6?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32H7A3IIK6 (ST, BGA-176(10x10)) 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 (201 pins) & STM32H7A3IIT / STM32H7A3IIK / STM32H7A3ZIT Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| A2 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: General. |
| A3 | VDDLDO | Power_In | Primary positive power supply input (VDDLDO) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| A4 | VCAP | Digital_IO | Signal terminal VCAP (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VCAP. Supported peripheral buses: General. |
| A5 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB6. Supported peripheral buses: General. |
| A6 | PB3 | Digital_IO | Signal terminal PB3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB3. Supported peripheral buses: General. |
| A7 | PG11 | Digital_IO | Signal terminal PG11 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG11. Supported peripheral buses: General. |
| A8 | PG9 | Digital_IO | Signal terminal PG9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG9. Supported peripheral buses: General. |
| A9 | 85 | Digital_IO | Signal terminal 85 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 85. Supported peripheral buses: UART, SPI. |
| A10 | 83 | Digital_IO | Signal terminal 83 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 83. Supported peripheral buses: General. |
| A11 | 78 | Digital_IO | Signal terminal 78 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_WSSPI3NSS, SPI6_NSS. Supported peripheral buses: UART, SPI, SWD/JTAG. |
| A12 | 77 | Digital_IO | Signal terminal 77 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 77. Supported peripheral buses: SWD/JTAG. |
| A13 | 74 | Digital_IO | Signal terminal 74 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 74. Supported peripheral buses: General. |
| A14 | 72 | Digital_IO | Signal terminal 72 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 72. Supported peripheral buses: General. |
| A15 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| B1 | PE4 | Digital_IO | Signal terminal PE4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE4. Supported peripheral buses: General. |
| B2 | PE3 | Digital_IO | Signal terminal PE3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE3. Supported peripheral buses: General. |
| B3 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB9. Supported peripheral buses: General. |
| B4 | PE0 | Digital_IO | Signal terminal PE0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE0. Supported peripheral buses: General. |
| B5 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB7. Supported peripheral buses: General. |
| B6 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB4. Supported peripheral buses: General. |
| B7 | PG13 | Digital_IO | Signal terminal PG13 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG13. Supported peripheral buses: General. |
| B8 | PD7 | Digital_IO | Signal terminal PD7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PD7. Supported peripheral buses: General. |
| B9 | 87 | Digital_IO | Signal terminal 87 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 87. Supported peripheral buses: UART. |
| B10 | 84 | Digital_IO | Signal terminal 84 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 84. Supported peripheral buses: UART. |
| B11 | 81 | Digital_IO | Signal terminal 81 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3USART3. Supported peripheral buses: UART, SPI. |
| B12 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: PWM. |
| B13 | 71 | Digital_IO | Signal terminal 71 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 71. Supported peripheral buses: SWD/JTAG. |
| B14 | 66 | Digital_IO | Signal terminal 66 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SCL. Supported peripheral buses: UART, I2C, RTC/CLK. |
| B15 | 70 | Digital_IO | Signal terminal 70 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: UART, SPI. |
| C1 | 6 | Digital_IO | Signal terminal 6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 6. Supported peripheral buses: RTC/CLK. |
| C2 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| C3 | PE2 | Digital_IO | Signal terminal PE2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE2. Supported peripheral buses: General. |
| C4 | PE1 | Digital_IO | Signal terminal PE1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE1. Supported peripheral buses: General. |
| C5 | BOOT0 | Digital_IO | Signal terminal BOOT0 (I, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: BOOT0. Supported peripheral buses: General. |
| C6 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB5. Supported peripheral buses: General. |
| C7 | PG14 | Digital_IO | Signal terminal PG14 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG14. Supported peripheral buses: General. |
| C8 | PG10 | Digital_IO | Signal terminal PG10 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG10. Supported peripheral buses: General. |
| C9 | 86 | Digital_IO | Signal terminal 86 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 86. Supported peripheral buses: UART. |
| C10 | 82 | Digital_IO | Signal terminal 82 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 82. Supported peripheral buses: UART. |
| C11 | 80 | Digital_IO | Signal terminal 80 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MISO. Supported peripheral buses: UART, SPI. |
| C12 | 79 | Digital_IO | Signal terminal 79 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCK. Supported peripheral buses: UART, SPI. |
| C13 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: PWM. |
| C14 | 68 | Digital_IO | Signal terminal 68 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 68. Supported peripheral buses: UART, PWM. |
| C15 | 69 | Digital_IO | Signal terminal 69 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: UART, SPI, PWM. |
| D1 | 8 | Digital_IO | Signal terminal 8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 8. Supported peripheral buses: RTC/CLK. |
| D2 | 7 | Digital_IO | Signal terminal 7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 7. Supported peripheral buses: RTC/CLK. |
| D3 | PE5 | Digital_IO | Signal terminal PE5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE5. Supported peripheral buses: General. |
| D4 | PDR_ON | Digital_IO | Signal terminal PDR_ON (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PDR_ON. Supported peripheral buses: General. |
| D5 | VDDMMC | Power_In | Primary positive power supply input (VDDMMC) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| D6 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| D7 | PG15 | Digital_IO | Signal terminal PG15 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG15. Supported peripheral buses: General. |
| D8 | PG12 | Digital_IO | Signal terminal PG12 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PG12. Supported peripheral buses: General. |
| D9 | PD6 | Digital_IO | Signal terminal PD6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PD6. Supported peripheral buses: General. |
| D10 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| D11 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| D12 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: PWM. |
| D13 | 67 | Digital_IO | Signal terminal 67 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C3_SCK, SPI2_CKUSART1. Supported peripheral buses: SPI, I2C, PWM. |
| D14 | 64 | Digital_IO | Signal terminal 64 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 64. Supported peripheral buses: UART. |
| D15 | 63 | Digital_IO | Signal terminal 63 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 63. Supported peripheral buses: General. |
| E1 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |
| E2 | 5 | Digital_IO | Signal terminal 5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 5. Supported peripheral buses: General. |
| E3 | PE6 | Digital_IO | Signal terminal PE6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE6. Supported peripheral buses: General. |
| E4 | - | Digital_IO | Signal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General. |