Mechanical Dimensions & Land Pattern (LQFP-128(14x14))
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 LQFP-128(14x14) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — CH9130L (LQFP-128(14x14))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of CH9130L (LQFP-128(14x14))?
Manufactured by WCH, the CH9130L is housed in a LQFP-128(14x14) package with 128 pins and a 0.40 mm lead pitch. Key pins include: 1 (P1: Multiplexed I/O & Peripheral Pin P1 (General)), 2 (P2: Multiplexed I/O & Peripheral Pin P2 (General)), 3 (P3: Multiplexed I/O & Peripheral Pin P3 (General)), 4 (P4: Multiplexed I/O & Peripheral Pin P4 (General)), 5 (P5: Multiplexed I/O & Peripheral Pin P5 (General)), 6 (P6: Multiplexed I/O & Peripheral Pin P6 (General)).
What are the IPC-7351B PCB Footprint dimensions for CH9130L?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), CH9130L (LQFP-128(14x14)) has a nominal body envelope of 14.00 × 14.00 mm, pitch e = 0.40 mm, and 128 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for CH9130L?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for CH9130L (WCH, LQFP-128(14x14)) 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 (128 pins) & CH9130 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | P1 | Digital_IO | Signal terminal P1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P1. Supported peripheral buses: General. |
| 2 | P2 | Digital_IO | Signal terminal P2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P2. Supported peripheral buses: General. |
| 3 | P3 | Digital_IO | Signal terminal P3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P3. Supported peripheral buses: General. |
| 4 | P4 | Digital_IO | Signal terminal P4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P4. Supported peripheral buses: General. |
| 5 | P5 | Digital_IO | Signal terminal P5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P5. Supported peripheral buses: General. |
| 6 | P6 | Digital_IO | Signal terminal P6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P6. Supported peripheral buses: General. |
| 7 | P7 | Digital_IO | Signal terminal P7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P7. Supported peripheral buses: General. |
| 8 | P8 | Digital_IO | Signal terminal P8 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P8. Supported peripheral buses: General. |
| 9 | P9 | Digital_IO | Signal terminal P9 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P9. Supported peripheral buses: General. |
| 10 | P10 | Digital_IO | Signal terminal P10 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P10. Supported peripheral buses: General. |
| 11 | P11 | Digital_IO | Signal terminal P11 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P11. Supported peripheral buses: General. |
| 12 | P12 | Digital_IO | Signal terminal P12 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P12. Supported peripheral buses: General. |
| 13 | P13 | Digital_IO | Signal terminal P13 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P13. Supported peripheral buses: General. |
| 14 | P14 | Digital_IO | Signal terminal P14 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P14. Supported peripheral buses: General. |
| 15 | P15 | Digital_IO | Signal terminal P15 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P15. Supported peripheral buses: General. |
| 16 | P16 | Digital_IO | Signal terminal P16 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P16. Supported peripheral buses: General. |
| 17 | P17 | Digital_IO | Signal terminal P17 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P17. Supported peripheral buses: General. |
| 18 | P18 | Digital_IO | Signal terminal P18 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P18. Supported peripheral buses: General. |
| 19 | P19 | Digital_IO | Signal terminal P19 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P19. Supported peripheral buses: General. |
| 20 | P20 | Digital_IO | Signal terminal P20 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P20. Supported peripheral buses: General. |
| 21 | P21 | Digital_IO | Signal terminal P21 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P21. Supported peripheral buses: General. |
| 22 | P22 | Digital_IO | Signal terminal P22 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P22. Supported peripheral buses: General. |
| 23 | P23 | Digital_IO | Signal terminal P23 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P23. Supported peripheral buses: General. |
| 24 | P24 | Digital_IO | Signal terminal P24 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P24. Supported peripheral buses: General. |
| 25 | P25 | Digital_IO | Signal terminal P25 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P25. Supported peripheral buses: General. |
| 26 | P26 | Digital_IO | Signal terminal P26 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P26. Supported peripheral buses: General. |
| 27 | P27 | Digital_IO | Signal terminal P27 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P27. Supported peripheral buses: General. |
| 28 | P28 | Digital_IO | Signal terminal P28 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P28. Supported peripheral buses: General. |
| 29 | P29 | Digital_IO | Signal terminal P29 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P29. Supported peripheral buses: General. |
| 30 | P30 | Digital_IO | Signal terminal P30 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P30. Supported peripheral buses: General. |
| 31 | P31 | Digital_IO | Signal terminal P31 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P31. Supported peripheral buses: General. |
| 32 | P32 | Digital_IO | Signal terminal P32 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: P32. Supported peripheral buses: General. |
| 33 | P33 | Digital_IO | P33 (CH9130L) |
| 34 | P34 | Digital_IO | P34 (CH9130L) |
| 35 | P35 | Digital_IO | P35 (CH9130L) |
| 36 | P36 | Digital_IO | P36 (CH9130L) |
| 37 | P37 | Digital_IO | P37 (CH9130L) |
| 38 | P38 | Digital_IO | P38 (CH9130L) |
| 39 | P39 | Digital_IO | P39 (CH9130L) |
| 40 | P40 | Digital_IO | P40 (CH9130L) |
| 41 | P41 | Digital_IO | P41 (CH9130L) |
| 42 | P42 | Digital_IO | P42 (CH9130L) |
| 43 | P43 | Digital_IO | P43 (CH9130L) |
| 44 | P44 | Digital_IO | P44 (CH9130L) |
| 45 | P45 | Digital_IO | P45 (CH9130L) |
| 46 | P46 | Digital_IO | P46 (CH9130L) |
| 47 | P47 | Digital_IO | P47 (CH9130L) |
| 48 | P48 | Digital_IO | P48 (CH9130L) |
| 49 | P49 | Digital_IO | P49 (CH9130L) |
| 50 | P50 | Digital_IO | P50 (CH9130L) |
| 51 | P51 | Digital_IO | P51 (CH9130L) |
| 52 | P52 | Digital_IO | P52 (CH9130L) |
| 53 | P53 | Digital_IO | P53 (CH9130L) |
| 54 | P54 | Digital_IO | P54 (CH9130L) |
| 55 | P55 | Digital_IO | P55 (CH9130L) |
| 56 | P56 | Digital_IO | P56 (CH9130L) |
| 57 | P57 | Digital_IO | P57 (CH9130L) |
| 58 | P58 | Digital_IO | P58 (CH9130L) |
| 59 | P59 | Digital_IO | P59 (CH9130L) |
| 60 | P60 | Digital_IO | P60 (CH9130L) |
| 61 | P61 | Digital_IO | P61 (CH9130L) |
| 62 | P62 | Digital_IO | P62 (CH9130L) |
| 63 | P63 | Digital_IO | P63 (CH9130L) |
| 64 | P64 | Digital_IO | P64 (CH9130L) |
