Mechanical Dimensions & Land Pattern (TQFP-64(10x10))
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 TQFP-64(10x10) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — PIC18F66K40T-I/PT (TQFP-64(10x10))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of PIC18F66K40T-I/PT (TQFP-64(10x10))?
Manufactured by MICROCHIP, the PIC18F66K40T-I/PT is housed in a TQFP-64(10x10) package with 64 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 1.8V to 3.6V. Key pins include: 1 (IOCGN5=1: Multiplexed I/O & Peripheral Pin IOCGN5=1 (General)), 2 (RE0: Multiplexed I/O & Peripheral Pin RE0 (General)), 3 (RG0: Multiplexed I/O & Peripheral Pin RG0 (General)), 4 (RG1: Multiplexed I/O & Peripheral Pin RG1 (General)), 5 (RG2: Multiplexed I/O & Peripheral Pin RG2 (General)), 6 (RG3: Multiplexed I/O & Peripheral Pin RG3 (General)).
What are the IPC-7351B PCB Footprint dimensions for PIC18F66K40T-I/PT?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), PIC18F66K40T-I/PT (TQFP-64(10x10)) has a nominal body envelope of 10.00 × 10.00 mm, pitch e = 0.50 mm, and 64 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for PIC18F66K40T-I/PT?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for PIC18F66K40T-I/PT (MICROCHIP, TQFP-64(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 (64 pins) & PIC18F66K40T Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | IOCGN5=1 | Digital_IO | Signal terminal IOCGN5=1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: IOCGN5=1. Supported peripheral buses: General. |
| 2 | RE0 | Digital_IO | Signal terminal RE0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE0. Supported peripheral buses: General. |
| 3 | RG0 | Digital_IO | Signal terminal RG0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG0. Supported peripheral buses: General. |
| 4 | RG1 | Digital_IO | Signal terminal RG1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG1. Supported peripheral buses: General. |
| 5 | RG2 | Digital_IO | Signal terminal RG2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG2. Supported peripheral buses: General. |
| 6 | RG3 | Digital_IO | Signal terminal RG3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG3. Supported peripheral buses: General. |
| 7 | VPP/#MCLR/RG5 | Digital_IO | Signal terminal VPP/#MCLR/RG5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: VPP/#MCLR/RG5. Supported peripheral buses: General. |
| 8 | RG4 | Digital_IO | Signal terminal RG4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG4. Supported peripheral buses: General. |
| 9 | Vss | GND | 0V electrical ground return terminal (Vss) for internal core logic, I/O drivers, and analog sub-blocks. |
| 10 | Vdd | Power_In | Primary positive power supply input (Vdd) operating in the 1.8V to 3.6V domain (Max rating: 3.6V). |
| 11 | RF7 | RF_50Ohm | Signal terminal RF7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF7. Supported peripheral buses: General. |
| 12 | RF6 | RF_50Ohm | Signal terminal RF6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF6. Supported peripheral buses: General. |
| 13 | RF5 | RF_50Ohm | Signal terminal RF5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF5. Supported peripheral buses: General. |
| 14 | RF4 | RF_50Ohm | Signal terminal RF4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF4. Supported peripheral buses: General. |
| 15 | RF3 | RF_50Ohm | Signal terminal RF3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF3. Supported peripheral buses: General. |
| 16 | RF2 | RF_50Ohm | Signal terminal RF2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF2. Supported peripheral buses: General. |
| 17 | RF1 | RF_50Ohm | Signal terminal RF1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF1. Supported peripheral buses: General. |
| 18 | RF0 | RF_50Ohm | Signal terminal RF0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RF0. Supported peripheral buses: General. |
| 19 | RG7 | Digital_IO | Signal terminal RG7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG7. Supported peripheral buses: General. |
| 20 | RG6 | Digital_IO | Signal terminal RG6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RG6. Supported peripheral buses: General. |
| 21 | RA3 | Digital_IO | Signal terminal RA3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA3. Supported peripheral buses: General. |
| 22 | RA2 | Digital_IO | Signal terminal RA2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA2. Supported peripheral buses: General. |
| 23 | RA1 | Digital_IO | Signal terminal RA1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA1. Supported peripheral buses: General. |
| 24 | RA0 | Digital_IO | Signal terminal RA0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA0. Supported peripheral buses: General. |
| 25 | RH1 | Digital_IO | Signal terminal RH1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RH1. Supported peripheral buses: General. |
| 26 | RH0 | Digital_IO | Signal terminal RH0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RH0. Supported peripheral buses: General. |
| 27 | RA5 | Digital_IO | Signal terminal RA5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA5. Supported peripheral buses: General. |
| 28 | RA4 | Digital_IO | Signal terminal RA4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA4. Supported peripheral buses: General. |
| 29 | RC1 | Digital_IO | Signal terminal RC1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC1. Supported peripheral buses: General. |
| 30 | RC0 | Digital_IO | Signal terminal RC0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC0. Supported peripheral buses: General. |
| 31 | RC6 | Digital_IO | Signal terminal RC6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC6. Supported peripheral buses: General. |
| 32 | RC7 | Digital_IO | Signal terminal RC7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC7. Supported peripheral buses: General. |
| 33 | RC2 | Digital_IO | Signal terminal RC2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC2. Supported peripheral buses: General. |
| 34 | RC3 | Digital_IO | Signal terminal RC3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC3. Supported peripheral buses: General. |
| 35 | RC4 | Digital_IO | Signal terminal RC4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC4. Supported peripheral buses: General. |
| 36 | RC5 | Digital_IO | Signal terminal RC5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RC5. Supported peripheral buses: General. |
| 37 | RB7 | Digital_IO | Signal terminal RB7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB7. Supported peripheral buses: General. |
| 38 | Vdd | Power_In | Primary positive power supply input (Vdd) operating in the 1.8V to 3.6V domain (Max rating: 3.6V). |
| 39 | RA7 | Digital_IO | Signal terminal RA7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA7. Supported peripheral buses: General. |
| 40 | RA6 | Digital_IO | Signal terminal RA6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RA6. Supported peripheral buses: General. |
| 41 | Vss | GND | 0V electrical ground return terminal (Vss) for internal core logic, I/O drivers, and analog sub-blocks. |
| 42 | RB6 | Digital_IO | Signal terminal RB6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB6. Supported peripheral buses: General. |
| 43 | RB5 | Digital_IO | Signal terminal RB5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB5. Supported peripheral buses: General. |
| 44 | RB4 | Digital_IO | Signal terminal RB4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB4. Supported peripheral buses: General. |
| 45 | RB3 | Digital_IO | Signal terminal RB3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB3. Supported peripheral buses: General. |
| 46 | RB2 | Digital_IO | Signal terminal RB2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB2. Supported peripheral buses: General. |
| 47 | RB1 | Digital_IO | Signal terminal RB1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB1. Supported peripheral buses: General. |
| 48 | RB0 | Digital_IO | Signal terminal RB0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RB0. Supported peripheral buses: General. |
| 49 | RD7 | Digital_IO | Signal terminal RD7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD7. Supported peripheral buses: General. |
| 50 | RD6 | Digital_IO | Signal terminal RD6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD6. Supported peripheral buses: General. |
| 51 | RD5 | Digital_IO | Signal terminal RD5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD5. Supported peripheral buses: General. |
| 52 | RD4 | Digital_IO | Signal terminal RD4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD4. Supported peripheral buses: General. |
| 53 | RD3 | Digital_IO | Signal terminal RD3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD3. Supported peripheral buses: General. |
| 54 | RD2 | Digital_IO | Signal terminal RD2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD2. Supported peripheral buses: General. |
| 55 | RD1 | Digital_IO | Signal terminal RD1 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD1. Supported peripheral buses: General. |
| 56 | RH3 | Digital_IO | Signal terminal RH3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RH3. Supported peripheral buses: General. |
| 57 | RH2 | Digital_IO | Signal terminal RH2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RH2. Supported peripheral buses: General. |
| 58 | RD0 | Digital_IO | Signal terminal RD0 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RD0. Supported peripheral buses: General. |
| 59 | RE7 | Digital_IO | Signal terminal RE7 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE7. Supported peripheral buses: General. |
| 60 | RE6 | Digital_IO | Signal terminal RE6 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE6. Supported peripheral buses: General. |
| 61 | RE5 | Digital_IO | Signal terminal RE5 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE5. Supported peripheral buses: General. |
| 62 | RE4 | Digital_IO | Signal terminal RE4 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE4. Supported peripheral buses: General. |
| 63 | RE3 | Digital_IO | Signal terminal RE3 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE3. Supported peripheral buses: General. |
| 64 | RE2 | Digital_IO | Signal terminal RE2 (I/O, 1.8V to 3.6V domain). Multiplexed alternate functions: RE2. Supported peripheral buses: General. |












