Mechanical Dimensions & Land Pattern (FPBGA-256)
Extracted from Datasheet & IPC-7351B NormalizedPackage Body (D × E)Nominal
17.00 × 17.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.35mm · e=1.00mm
Pad Size (W × L)Level B
0.40 × 0.40 mm
Pins / Total PadsTopology
256P / 256Pad (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 FPBGA-256 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — AFS250-FG256 (FPBGA-256)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of AFS250-FG256 (FPBGA-256)?
Manufactured by MICROCHIP, the AFS250-FG256 is housed in a FPBGA-256 package with 256 pins and a 1.00 mm lead pitch, supporting a VCC supply range of 2.97 V to 3.63 V. Key pins include: A1 (GNDQ: Ground Reference Pin (GNDQ)), A2 (VCCIB3: Power Supply Input (VCCIB3 — 2.97 V to 3.63 V)), A3 (IO74NDB3V0: Multiplexed I/O & Peripheral Pin IO74NDB3V0 (General)), A4 (IO71NDB3V0: Multiplexed I/O & Peripheral Pin IO71NDB3V0 (General)), A5 (IO69NPB3V0: Multiplexed I/O & Peripheral Pin IO69NPB3V0 (General)), A6 (VCCIB3: Power Supply Input (VCCIB3 — 2.97 V to 3.63 V)).
What are the IPC-7351B PCB Footprint dimensions for AFS250-FG256?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), AFS250-FG256 (FPBGA-256) has a nominal body envelope of 17.00 × 17.00 mm, pitch e = 1.00 mm, and 256 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for AFS250-FG256?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for AFS250-FG256 (MICROCHIP, FPBGA-256) 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 (256 pins) & M1AFS600 / AFS1500 / AFS250 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | GNDQ | GND | 0V electrical ground return terminal (GNDQ) for internal core logic, I/O drivers, and analog sub-blocks. |
| A2 | VCCIB3 | Power_In | Primary positive power supply input (VCCIB3) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| A3 | IO74NDB3V0 | Digital_IO | Signal terminal IO74NDB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: IO74NDB3V0. Supported peripheral buses: General. |
| A4 | IO71NDB3V0 | Digital_IO | Signal terminal IO71NDB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: IO71NDB3V0. Supported peripheral buses: General. |
| A5 | IO69NPB3V0 | Digital_IO | Signal terminal IO69NPB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: IO69NPB3V0. Supported peripheral buses: General. |
| A6 | VCCIB3 | Power_In | Primary positive power supply input (VCCIB3) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| A7 | GFB1/IO67PPB3V0 | Digital_IO | Signal terminal GFB1/IO67PPB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: GFB1/IO67PPB3V0. Supported peripheral buses: General. |
| A8 | NC | NC | Signal terminal NC (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| A9 | XTAL1 | Digital_IO | Signal terminal XTAL1 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: XTAL1. Supported peripheral buses: RTC/CLK. |
| A10 | GNDOSC | GND | 0V electrical ground return terminal (GNDOSC) for internal core logic, I/O drivers, and analog sub-blocks. |
| A11 | GEA1/IO61PPB3V0 | Digital_IO | Signal terminal GEA1/IO61PPB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: GEA1/IO61PPB3V0. Supported peripheral buses: General. |
| A12 | GEA0/IO61NPB3V0 | Digital_IO | Signal terminal GEA0/IO61NPB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: GEA0/IO61NPB3V0. Supported peripheral buses: General. |
| A13 | VCCIB3 | Power_In | Primary positive power supply input (VCCIB3) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| A14 | GNDNVM | GND | 0V electrical ground return terminal (GNDNVM) for internal core logic, I/O drivers, and analog sub-blocks. |
| A15 | PCAP | Digital_IO | Signal terminal PCAP (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PCAP. Supported peripheral buses: General. |
| A16 | VCC33PMP | Power_In | Primary positive power supply input (VCC33PMP) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| B1 | PB1 | Digital_IO | Signal terminal PB1 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB1. Supported peripheral buses: General. |
| B2 | PB2 | Digital_IO | Signal terminal PB2 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB2. Supported peripheral buses: General. |
| B3 | PB3 | Digital_IO | Signal terminal PB3 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB3. Supported peripheral buses: General. |
| B4 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB4. Supported peripheral buses: General. |
| B5 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB5. Supported peripheral buses: General. |
| B6 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB6. Supported peripheral buses: General. |
| B7 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB7. Supported peripheral buses: General. |
| B8 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PB8. Supported peripheral buses: General. |
| B9 | XTAL2 | Digital_IO | Signal terminal XTAL2 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: XTAL2. Supported peripheral buses: RTC/CLK. |
| B10 | GFA0/IO66NDB3V0 | Digital_IO | Signal terminal GFA0/IO66NDB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: GFA0/IO66NDB3V0. Supported peripheral buses: General. |
| B11 | IO60NDB3V0 | Digital_IO | Signal terminal IO60NDB3V0 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: IO60NDB3V0. Supported peripheral buses: General. |
| B12 | VCC | Power_In | Primary positive power supply input (VCC) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| B13 | VCCNVM | Power_In | Primary positive power supply input (VCCNVM) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| B14 | VCC15A | Power_In | Primary positive power supply input (VCC15A) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| B15 | NCAP | Digital_IO | Signal terminal NCAP (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: NCAP. Supported peripheral buses: General. |
| B16 | VCC33N | Power_In | Primary positive power supply input (VCC33N) operating in the 2.97 V to 3.63 V domain (Max rating: 3.63V). |
| C1 | PC1 | Digital_IO | Signal terminal PC1 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC1. Supported peripheral buses: General. |
| C2 | PC2 | Digital_IO | Signal terminal PC2 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC2. Supported peripheral buses: General. |
| C3 | PC3 | Digital_IO | Signal terminal PC3 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC3. Supported peripheral buses: General. |
| C4 | PC4 | Digital_IO | Signal terminal PC4 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC4. Supported peripheral buses: General. |
| C5 | PC5 | Digital_IO | Signal terminal PC5 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC5. Supported peripheral buses: General. |
| C6 | PC6 | Digital_IO | Signal terminal PC6 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC6. Supported peripheral buses: General. |
| C7 | PC7 | Digital_IO | Signal terminal PC7 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC7. Supported peripheral buses: General. |
| C8 | PC8 | Digital_IO | Signal terminal PC8 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC8. Supported peripheral buses: General. |
| C9 | PC9 | Digital_IO | Signal terminal PC9 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC9. Supported peripheral buses: General. |
| C10 | PC10 | Digital_IO | Signal terminal PC10 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC10. Supported peripheral buses: General. |
| C11 | PC11 | Digital_IO | Signal terminal PC11 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC11. Supported peripheral buses: General. |
| C12 | PC12 | Digital_IO | Signal terminal PC12 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC12. Supported peripheral buses: General. |
| C13 | PC13 | Digital_IO | Signal terminal PC13 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC13. Supported peripheral buses: General. |
| C14 | PC14 | Digital_IO | Signal terminal PC14 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC14. Supported peripheral buses: General. |
| C15 | PC15 | Digital_IO | Signal terminal PC15 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC15. Supported peripheral buses: General. |
| C16 | PC16 | Digital_IO | Signal terminal PC16 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PC16. Supported peripheral buses: General. |
| D1 | C21 | Digital_IO | Signal terminal C21 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: C21. Supported peripheral buses: General. |
| D2 | C22 | Digital_IO | Signal terminal C22 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: C22. Supported peripheral buses: General. |
| D3 | C23 | Digital_IO | Signal terminal C23 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: C23. Supported peripheral buses: General. |
| D4 | C24 | Digital_IO | Signal terminal C24 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: C24. Supported peripheral buses: General. |
| D5 | PD5 | Digital_IO | Signal terminal PD5 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD5. Supported peripheral buses: General. |
| D6 | PD6 | Digital_IO | Signal terminal PD6 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD6. Supported peripheral buses: General. |
| D7 | PD7 | Digital_IO | Signal terminal PD7 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD7. Supported peripheral buses: General. |
| D8 | PD8 | Digital_IO | Signal terminal PD8 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD8. Supported peripheral buses: General. |
| D9 | PD9 | Digital_IO | Signal terminal PD9 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD9. Supported peripheral buses: General. |
| D10 | PD10 | Digital_IO | Signal terminal PD10 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD10. Supported peripheral buses: General. |
| D11 | PD11 | Digital_IO | Signal terminal PD11 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD11. Supported peripheral buses: General. |
| D12 | PD12 | Digital_IO | Signal terminal PD12 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD12. Supported peripheral buses: General. |
| D13 | PD13 | Digital_IO | Signal terminal PD13 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD13. Supported peripheral buses: General. |
| D14 | PD14 | Digital_IO | Signal terminal PD14 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD14. Supported peripheral buses: General. |
| D15 | PD15 | Digital_IO | Signal terminal PD15 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD15. Supported peripheral buses: General. |
| D16 | PD16 | Digital_IO | Signal terminal PD16 (I/O, 2.97 V to 3.63 V domain). Multiplexed alternate functions: PD16. Supported peripheral buses: General. |