PIC18F66K22-I

{
  "schema_version": 1,
  "type": "component",
  "slug": "pic18f66k22-i",
  "title": "PIC18F66K22-I",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "pic18f66k22-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "PIC18F66K22-I",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181967494983680",
    "parts": {
      "symbol": "pic18f66k22-i.kicad_sym",
      "footprint": "pic18f66k22-i.kicad_mod",
      "model_3d": "pic18f66k22-i-hero.glb",
      "model_3d_plain": "pic18f66k22-i-etched.glb",
      "model_3d_step": "pic18f66k22-i-etched.step",
      "model_3d_step_plain": "pic18f66k22-i.step",
      "lbr": "pic18f66k22-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C54979"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T18:46:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RE1/WR/P2C",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port write strobe, ECCP2 PWM output C, and external write control in PSP mode."
      },
      {
        "number": "2",
        "name": "RE0/RD/P2D",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port read strobe and ECCP2 PWM output D."
      },
      {
        "number": "3",
        "name": "RG0/ECCP3/P3A",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Capture 3 input/Compare 3 output/PWM3 output and ECCP3 PWM output A."
      },
      {
        "number": "4",
        "name": "RG1/TX2/CK2/AN19/C3OUT",
        "type": "bidirectional",
        "description": "Digital I/O; also EUSART2 asynchronous transmit or synchronous clock, Analog Input 19, and Comparator 3 output."
      },
      {
        "number": "5",
        "name": "RG2/RX2/DT2/AN18/C3INA",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also EUSART2 asynchronous receive or synchronous data, Analog Input 18, and Comparator 3 Input A."
      },
      {
        "number": "6",
        "name": "RG3/CCP4/AN17/P3D/C3INB",
        "type": "bidirectional",
        "description": "Digital I/O; also Capture 4 input/Compare 4 output/PWM4 output, Analog Input 17, ECCP3 PWM output D, and Comparator 3 Input B."
      },
      {
        "number": "7",
        "name": "MCLR/RG5",
        "type": "input",
        "description": "Master Clear input (programming voltage input) that is an active-low Reset to the device; when MCLR is disabled this pin is a general purpose input-only pin (RG5)."
      },
      {
        "number": "8",
        "name": "RG4/RTCC/T7CKI/T5G/CCP5/AN16/P1D/C3INC",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also RTCC output, Timer7 clock input, Timer5 external clock gate input, Capture 5/Compare 5/PWM5 output, Analog Input 16, ECCP1 PWM output D, and Comparator 3 Input C."
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "10",
        "name": "VDDCORE/VCAP",
        "type": "power_in",
        "description": "Core logic power (VDDCORE) when the on-chip regulator is disabled, or external filter capacitor connection (VCAP) when the regulator is enabled."
      },
      {
        "number": "11",
        "name": "RF7/AN5/SS1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 5 and SPI1 slave select input."
      },
      {
        "number": "12",
        "name": "RF6/AN11/C1INA",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 11 and Comparator 1 Input A."
      },
      {
        "number": "13",
        "name": "RF5/AN10/CVREF/C1INB",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 10, comparator reference voltage output CVREF (enabling it disables digital I/O), and Comparator 1 Input B."
      },
      {
        "number": "14",
        "name": "RF4/AN9/C2INA",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 9 and Comparator 2 Input A."
      },
      {
        "number": "15",
        "name": "RF3/AN8/C2INB/CTMUI",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 8, Comparator 2 Input B, and CTMU pulse generator charger for the C2INB input."
      },
      {
        "number": "16",
        "name": "RF2/AN7/C1OUT",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 7 and Comparator 1 output."
      },
      {
        "number": "17",
        "name": "RF1/AN6/C2OUT/CTDIN",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Analog Input 6, Comparator 2 output, and CTMU pulse delay input."
      },
      {
        "number": "18",
        "name": "ENVREG",
        "type": "input",
        "description": "Enable for the on-chip voltage regulator; tie to VDD to enable the regulator or to ground to disable it."
      },
      {
        "number": "19",
        "name": "AVDD",
        "type": "power_in",
        "description": "Positive supply for analog modules."
      },
      {
        "number": "20",
        "name": "AVSS",
        "type": "power_in",
        "description": "Ground reference for analog modules."
      },
      {
        "number": "21",
        "name": "RA3/AN3/VREF+",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input; also Analog Input 3 and A/D reference voltage (high) input."
      },
      {
        "number": "22",
        "name": "RA2/AN2/VREF-",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input; also Analog Input 2 and A/D reference voltage (low) input."
      },
      {
        "number": "23",
        "name": "RA1/AN1",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input; also Analog Input 1."
      },
      {
        "number": "24",
        "name": "RA0/AN0/ULPWU",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input; also Analog Input 0 and Ultra Low-Power Wake-up input."
      },
      {
        "number": "25",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "26",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "27",
        "name": "RA5/AN4/T1CKI/T3G/HLVDIN",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input; also Analog Input 4, Timer1 clock input, Timer3 external clock gate input, and High/Low-Voltage Detect input."
      },
      {
        "number": "28",
        "name": "RA4/T0CKI",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Timer0 external clock input."
      },
      {
        "number": "29",
        "name": "RC1/SOSCI/ECCP2/P2A",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also SOSC oscillator input, ECCP2 capture/compare/PWM (default assignment when CCP2MX is set), and ECCP2 PWM output A."
      },
      {
        "number": "30",
        "name": "RC0/SOSCO/SCLKI",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also SOSC oscillator output and digital SOSC clock input (SCLKI)."
      },
      {
        "number": "31",
        "name": "RC6/TX1/CK1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also EUSART1 asynchronous transmit or synchronous clock."
      },
      {
        "number": "32",
        "name": "RC7/RX1/DT1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also EUSART1 asynchronous receive or synchronous data."
      },
      {
        "number": "33",
        "name": "RC2/ECCP1/P1A",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Capture 1 input/Compare 1 output/PWM1 output and ECCP1 PWM output A."
      },
      {
        "number": "34",
        "name": "RC3/SCK1/SCL1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also MSSP1 SPI clock input/output or I2C clock input/output."
      },
      {
        "number": "35",
        "name": "RC4/SDI1/SDA1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also MSSP1 SPI data input or I2C data I/O."
      },
      {
        "number": "36",
        "name": "RC5/SDO1",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also MSSP1 SPI data output."
      },
      {
        "number": "37",
        "name": "RB7/KBI3/PGD",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also interrupt-on-change KBI3 and ICSP/ICD serial data pin."
      },
      {
        "number": "38",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "39",
        "name": "OSC1/CLKI/RA7",
        "type": "input",
        "description": "Oscillator crystal or external clock input (OSC1/CLKI); pin is general purpose I/O RA7 only in oscillator modes where it is not used as the oscillator input."
      },
      {
        "number": "40",
        "name": "OSC2/CLKO/RA6",
        "type": "output",
        "description": "Oscillator crystal output or clock output (CLKO, FOSC/4); pin is general purpose I/O RA6 only in oscillator modes where it is not used as the oscillator output."
      },
      {
        "number": "41",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "42",
        "name": "RB6/KBI2/PGC",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also interrupt-on-change KBI2 and ICSP/ICD programming clock pin."
      },
      {
        "number": "43",
        "name": "RB5/KBI1/T3CKI/T1G",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also interrupt-on-change KBI1, Timer3 clock input, and Timer1 external clock gate input."
      },
      {
        "number": "44",
        "name": "RB4/KBI0",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also interrupt-on-change KBI0."
      },
      {
        "number": "45",
        "name": "RB3/INT3/CTED2/ECCP2/P2A",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also External Interrupt 3, CTMU Edge 2 input, ECCP2 capture/compare/PWM, and ECCP2 PWM output A."
      },
      {
        "number": "46",
        "name": "RB2/INT2/CTED1",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also External Interrupt 2 and CTMU Edge 1 input."
      },
      {
        "number": "47",
        "name": "RB1/INT1",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also External Interrupt 1."
      },
      {
        "number": "48",
        "name": "RB0/INT0/FLT0",
        "type": "bidirectional",
        "description": "Digital I/O with TTL input and weak pull-up; also External Interrupt 0 and Enhanced PWM Fault input for ECCP1/2/3."
      },
      {
        "number": "49",
        "name": "RD7/PSP7/SS2",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data and SPI slave select input for MSSP2."
      },
      {
        "number": "50",
        "name": "RD6/PSP6/SCK2/SCL2",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data, MSSP2 SPI clock input/output, and I2C clock input/output."
      },
      {
        "number": "51",
        "name": "RD5/PSP5/SDI2/SDA2",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data, MSSP2 SPI data input, and I2C data I/O."
      },
      {
        "number": "52",
        "name": "RD4/PSP4/SDO2",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data and MSSP2 SPI data output."
      },
      {
        "number": "53",
        "name": "RD3/PSP3",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data."
      },
      {
        "number": "54",
        "name": "RD2/PSP2",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data."
      },
      {
        "number": "55",
        "name": "RD1/PSP1/T5CKI/T7G",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data, Timer5 clock input, and Timer7 external clock gate input."
      },
      {
        "number": "56",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "57",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "58",
        "name": "RD0/PSP0/CTPLS",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port data and CTMU pulse generator output."
      },
      {
        "number": "59",
        "name": "RE7/ECCP2/P2A",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also ECCP2 capture/compare/PWM (alternate assignment when CCP2MX is cleared) and ECCP2 PWM output A."
      },
      {
        "number": "60",
        "name": "RE6/P1B/CCP6",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also ECCP1 PWM output B and Capture 6/Compare 6/PWM6 output."
      },
      {
        "number": "61",
        "name": "RE5/P1C/CCP7",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also ECCP1 PWM output C and Capture 7/Compare 7/PWM7 output."
      },
      {
        "number": "62",
        "name": "RE4/P3B/CCP8",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also ECCP3 PWM output B and Capture 8/Compare 8/PWM8 output."
      },
      {
        "number": "63",
        "name": "RE3/P3C/CCP9/REFO",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also ECCP3 PWM output C, Capture 9/Compare 9/PWM9 output, and reference clock output REFO."
      },
      {
        "number": "64",
        "name": "RE2/CS/P2B/CCP10",
        "type": "bidirectional",
        "description": "Digital I/O with Schmitt Trigger input; also Parallel Slave Port chip select, ECCP2 PWM output B, and Capture 10/Compare 10/PWM10 output."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Source is the family datasheet DS39960D (PIC18F87K22 family). The 64-pin pinout in Table 1-3 (pages ; Pin names show the primary function from the pin table. Multiplexed alternates are listed in the des; Pins 29, 45, 59 (ECCP2) depend on the CCP2MX configuration bit. Pins 7 (RG5) and 39/40 (RA7/RA6) dep"
        ],
        "pages_sent": 88,
        "cost_usd": 0.6263,
        "at": "2026-10-20T18:43:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181967494983680",
        "pages": 550,
        "sha256": "64337c8891e746c1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pic18f66k22-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "60567e81b0770b6c519104183a7a05ba52dddc11146b5fbe21434fbb5801696c",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic18f66k22-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9055c84837ec9d5d3647836f83f2be01b933165af666a553afe478d874f4a3ee",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "64337c8891e746c1b0884a7cdac5c1889da67ddd48fc4dd9b0ad0391a1e5ce83",
      "rows": [
        {
          "name": "Digital port input tolerance",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "All digital ports; analog ports have the same tolerance (clamping diodes internal)",
          "source_page": 165,
          "source": "datasheet"
        },
        {
          "name": "HSPLL/ECPLL oscillator input range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 4,
          "typ": null,
          "max": 16,
          "conditions": "PLL enabled only when HS or EC oscillator frequency is within this range",
          "source_page": 51,
          "source": "datasheet"
        },
        {
          "name": "PLL output frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 64,
          "conditions": "HSPLL/ECPLL: four times the external oscillator, up to 64 MHz",
          "source_page": 51,
          "source": "datasheet"
        },
        {
          "name": "LP oscillator operating frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": 31.25,
          "typ": null,
          "max": 100,
          "conditions": "LP mode design operating frequency",
          "source_page": 48,
          "source": "datasheet"
        },
        {
          "name": "HS oscillator operating frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 4,
          "typ": null,
          "max": 25,
          "conditions": "HS mode design operating frequency",
          "source_page": 48,
          "source": "datasheet"
        },
        {
          "name": "EC oscillator operating frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 64,
          "conditions": "EC mode, external clock",
          "source_page": 48,
          "source": "datasheet"
        },
        {
          "name": "EXTRC oscillator operating frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "EXTRC mode, external RC",
          "source_page": 48,
          "source": "datasheet"
        },
        {
          "name": "RC oscillator external resistor REXT",
          "symbol": "REXT",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 3,
          "typ": null,
          "max": 100,
          "conditions": "RC and RCIO oscillator modes; recommended values",
          "source_page": 49,
          "source": "datasheet"
        },
        {
          "name": "RC oscillator external capacitor CEXT",
          "symbol": "CEXT",
          "kind": "recommended_operating",
          "unit": "pF",
          "min": 20,
          "typ": null,
          "max": 300,
          "conditions": "RC and RCIO oscillator modes; recommended values",
          "source_page": 49,
          "source": "datasheet"
        },
        {
          "name": "VCAP/VDDCORE external capacitor",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "µF",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "Required on VCAP/VDDCORE to ground when on-chip voltage regulator is enabled; ceramic or tantalum",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "VCAP/VDDCORE capacitor ESR",
          "symbol": "ESR",
          "kind": "recommended_operating",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Low-ESR capacitor (< 5 Ω) required on VCAP/VDDCORE when regulator enabled",
          "source_page": 39,
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