Mechanical Dimensions & Land Pattern (LFBGA-217)
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
15.00 × 15.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.10mm · e=0.80mm
Pad Size (W × L)Level B
0.32 × 0.32 mm
Pins / Total PadsTopology
217P / 217Pad (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 LFBGA-217 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — AT91SAM9G20B-CU (LFBGA-217)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of AT91SAM9G20B-CU (LFBGA-217)?
Manufactured by MICROCHIP, the AT91SAM9G20B-CU is housed in a LFBGA-217 package with 217 pins and a 0.80 mm lead pitch, supporting a VCC supply range of 9V to 1.1V. Key pins include: A1 (PA1: Multiplexed I/O & Peripheral Pin PA1 (General)), A2 (D12: Multiplexed I/O & Peripheral Pin D12 (General)), A3 (NWR2/NBS2/A1: Multiplexed I/O & Peripheral Pin NWR2/NBS2/A1 (General)), A4 (A6: Multiplexed I/O & Peripheral Pin A6 (General)), A5 (A8: Multiplexed I/O & Peripheral Pin A8 (General)), A6 (A11: Multiplexed I/O & Peripheral Pin A11 (General)).
What are the IPC-7351B PCB Footprint dimensions for AT91SAM9G20B-CU?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), AT91SAM9G20B-CU (LFBGA-217) has a nominal body envelope of 15.00 × 15.00 mm, pitch e = 0.80 mm, and 217 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for AT91SAM9G20B-CU?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for AT91SAM9G20B-CU (MICROCHIP, LFBGA-217) 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 (217 pins) & AT91SAM9G20B Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PA1. Supported peripheral buses: General. |
| A2 | D12 | Digital_IO | Signal terminal D12 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D12. Supported peripheral buses: General. |
| A3 | NWR2/NBS2/A1 | Digital_IO | Signal terminal NWR2/NBS2/A1 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: NWR2/NBS2/A1. Supported peripheral buses: General. |
| A4 | A6 | Digital_IO | Signal terminal A6 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A6. Supported peripheral buses: General. |
| A5 | A8 | Digital_IO | Signal terminal A8 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A8. Supported peripheral buses: General. |
| A6 | A11 | Digital_IO | Signal terminal A11 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A11. Supported peripheral buses: General. |
| A7 | A13 | Digital_IO | Signal terminal A13 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A13. Supported peripheral buses: General. |
| A8 | BA0/A16 | Digital_IO | Signal terminal BA0/A16 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: BA0/A16. Supported peripheral buses: General. |
| A9 | A18 | Digital_IO | Signal terminal A18 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A18. Supported peripheral buses: General. |
| A10 | A21 | Digital_IO | Signal terminal A21 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A21. Supported peripheral buses: General. |
| A11 | A22 | Digital_IO | Signal terminal A22 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A22. Supported peripheral buses: General. |
| A12 | A9 | Digital_IO | Signal terminal A9 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A9. Supported peripheral buses: General. |
| A13 | CFOE/NRD | Digital_IO | Signal terminal CFOE/NRD (I/O, 9V to 1.1V domain). Multiplexed alternate functions: CFOE/NRD. Supported peripheral buses: General. |
| A14 | A13 | Digital_IO | Signal terminal A13 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A13. Supported peripheral buses: General. |
| A15 | PC5 | Digital_IO | Signal terminal PC5 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC5. Supported peripheral buses: General. |
| A16 | A20 | Digital_IO | Signal terminal A20 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A20. Supported peripheral buses: General. |
| A17 | PC4 | Digital_IO | Signal terminal PC4 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC4. Supported peripheral buses: General. |
| B1 | D15 | Digital_IO | Signal terminal D15 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D15. Supported peripheral buses: General. |
| B2 | D14 | Digital_IO | Signal terminal D14 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D14. Supported peripheral buses: General. |
| B3 | D10 | Digital_IO | Signal terminal D10 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D10. Supported peripheral buses: General. |
| B4 | D9 | Digital_IO | Signal terminal D9 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D9. Supported peripheral buses: General. |
| B5 | D7 | Digital_IO | Signal terminal D7 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D7. Supported peripheral buses: General. |
| B6 | D3 | Digital_IO | Signal terminal D3 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D3. Supported peripheral buses: General. |
| B7 | D2 | Digital_IO | Signal terminal D2 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D2. Supported peripheral buses: General. |
| B8 | RAS | Digital_IO | Signal terminal RAS (I/O, 9V to 1.1V domain). Multiplexed alternate functions: RAS. Supported peripheral buses: General. |
| B9 | CAS | Digital_IO | Signal terminal CAS (I/O, 9V to 1.1V domain). Multiplexed alternate functions: CAS. Supported peripheral buses: General. |
| B10 | NWR2/NBS2/A1 | Digital_IO | Signal terminal NWR2/NBS2/A1 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: NWR2/NBS2/A1. Supported peripheral buses: General. |
| B11 | A3 | Digital_IO | Signal terminal A3 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A3. Supported peripheral buses: General. |
| B12 | PC10 | Digital_IO | Signal terminal PC10 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC10. Supported peripheral buses: General. |
| B13 | A10 | Digital_IO | Signal terminal A10 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A10. Supported peripheral buses: General. |
| B14 | PC11 | Digital_IO | Signal terminal PC11 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC11. Supported peripheral buses: General. |
| B15 | A18 | Digital_IO | Signal terminal A18 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A18. Supported peripheral buses: General. |
| B16 | PC8 | Digital_IO | Signal terminal PC8 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC8. Supported peripheral buses: General. |
| B17 | A21 | Digital_IO | Signal terminal A21 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A21. Supported peripheral buses: General. |
| C1 | D8 | Digital_IO | Signal terminal D8 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D8. Supported peripheral buses: General. |
| C2 | PC15 | Digital_IO | Signal terminal PC15 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC15. Supported peripheral buses: General. |
| C3 | D11 | Digital_IO | Signal terminal D11 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D11. Supported peripheral buses: General. |
| C4 | D8 | Digital_IO | Signal terminal D8 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D8. Supported peripheral buses: General. |
| C5 | SDCKE | Digital_IO | Signal terminal SDCKE (I/O, 9V to 1.1V domain). Multiplexed alternate functions: SDCKE. Supported peripheral buses: General. |
| C6 | SDWE | Digital_IO | Signal terminal SDWE (I/O, 9V to 1.1V domain). Multiplexed alternate functions: SDWE. Supported peripheral buses: General. |
| C7 | SDCK | Digital_IO | Signal terminal SDCK (I/O, 9V to 1.1V domain). Multiplexed alternate functions: SDCK. Supported peripheral buses: General. |
| C8 | D1 | Digital_IO | Signal terminal D1 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D1. Supported peripheral buses: General. |
| C9 | SDCS/NCS1 | Digital_IO | Signal terminal SDCS/NCS1 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: SDCS/NCS1. Supported peripheral buses: General. |
| C10 | A2 | Digital_IO | Signal terminal A2 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A2. Supported peripheral buses: General. |
| C11 | A7 | Digital_IO | Signal terminal A7 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A7. Supported peripheral buses: General. |
| C12 | A11 | Digital_IO | Signal terminal A11 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A11. Supported peripheral buses: General. |
| C13 | DDP | Digital_IO | Signal terminal DDP (I/O, 9V to 1.1V domain). Multiplexed alternate functions: DDP. Supported peripheral buses: General. |
| C14 | A19 | Digital_IO | Signal terminal A19 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A19. Supported peripheral buses: General. |
| C15 | NC | NC | Signal terminal NC (I/O, 9V to 1.1V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| C16 | GNDUSB | GND | 0V electrical ground return terminal (GNDUSB) for internal core logic, I/O drivers, and analog sub-blocks. |
| C17 | SHDN | Digital_IO | Signal terminal SHDN (I/O, 9V to 1.1V domain). Multiplexed alternate functions: SHDN. Supported peripheral buses: General. |
| D1 | D9 | Digital_IO | Signal terminal D9 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D9. Supported peripheral buses: General. |
| D2 | PC17 | Digital_IO | Signal terminal PC17 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC17. Supported peripheral buses: General. |
| D3 | PC16 | Digital_IO | Signal terminal PC16 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PC16. Supported peripheral buses: General. |
| D4 | D0 | Digital_IO | Signal terminal D0 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: D0. Supported peripheral buses: General. |
| D5 | PD5 | Digital_IO | Signal terminal PD5 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD5. Supported peripheral buses: General. |
| D6 | PD6 | Digital_IO | Signal terminal PD6 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD6. Supported peripheral buses: General. |
| D7 | PD7 | Digital_IO | Signal terminal PD7 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD7. Supported peripheral buses: General. |
| D8 | PD8 | Digital_IO | Signal terminal PD8 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD8. Supported peripheral buses: General. |
| D9 | PD9 | Digital_IO | Signal terminal PD9 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD9. Supported peripheral buses: General. |
| D10 | PD10 | Digital_IO | Signal terminal PD10 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD10. Supported peripheral buses: General. |
| D11 | PD11 | Digital_IO | Signal terminal PD11 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD11. Supported peripheral buses: General. |
| D12 | PD12 | Digital_IO | Signal terminal PD12 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: PD12. Supported peripheral buses: General. |
| D13 | A14 | Digital_IO | Signal terminal A14 (I/O, 9V to 1.1V domain). Multiplexed alternate functions: A14. Supported peripheral buses: General. |