PIC18F55K42-I

{
  "schema_version": 1,
  "type": "component",
  "slug": "pic18f55k42-i",
  "title": "PIC18F55K42-I",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "embedded processors & controllers",
    "pic18f55k42-i",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "PIC18F55K42-I",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8579632364446023680",
    "parts": {
      "symbol": "pic18f55k42-i.kicad_sym",
      "footprint": "pic18f55k42-i.kicad_mod",
      "model_3d": "pic18f55k42-i-hero.glb",
      "model_3d_plain": "pic18f55k42-i-etched.glb",
      "model_3d_step": "pic18f55k42-i-etched.step",
      "model_3d_step_plain": "pic18f55k42-i.step",
      "lbr": "pic18f55k42-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C633747"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T01:35:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RC7",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC7 with analog input ANC7, UART1 receive RX1 (PPS-remappable input) and interrupt-on-change IOCC7."
      },
      {
        "number": "2",
        "name": "RD4",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD4 with analog input AND4."
      },
      {
        "number": "3",
        "name": "RD5",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD5 with analog input AND5."
      },
      {
        "number": "4",
        "name": "RD6",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD6 with analog input AND6."
      },
      {
        "number": "5",
        "name": "RD7",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD7 with analog input AND7."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all VSS pins must be connected at the circuit board level, since floating VSS may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply pin; all VDD pins must be connected at the circuit board level, since floating VDD may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "8",
        "name": "RB0",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB0 with analog input ANB0, comparator C2IN1+ input, zero-cross detect ZCD, external interrupt INT0 and interrupt-on-change IOCB0."
      },
      {
        "number": "9",
        "name": "RB1",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB1 with analog input ANB1, comparator inputs C1IN3-/C2IN3-, I2C2 clock SCL2 (I2C/SMBus logic levels) and external interrupt INT1."
      },
      {
        "number": "10",
        "name": "RB2",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB2 with analog input ANB2, I2C2 data SDA2 (I2C/SMBus logic levels), CWG3IN input and external interrupt INT2."
      },
      {
        "number": "11",
        "name": "RB3",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB3 with analog input ANB3, comparator inputs C1IN2-/C2IN2- and interrupt-on-change IOCB3."
      },
      {
        "number": "12",
        "name": "RF4",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF4 with analog input ANF4."
      },
      {
        "number": "13",
        "name": "RF5",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF5 with analog input ANF5."
      },
      {
        "number": "14",
        "name": "RF6",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF6 with analog input ANF6."
      },
      {
        "number": "15",
        "name": "RF7",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF7 with analog input ANF7."
      },
      {
        "number": "16",
        "name": "RB4",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB4 with analog input ANB4, ADC acquisition trigger ADCACT, Timer5 gate T5G and interrupt-on-change IOCB4."
      },
      {
        "number": "17",
        "name": "RB5",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB5 with analog input ANB5, Timer1 gate T1G, CCP3 and interrupt-on-change IOCB5."
      },
      {
        "number": "18",
        "name": "RB6",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB6 with analog input ANB6, UART2 CTS2, CLCIN2, interrupt-on-change IOCB6 and ICSP programming clock ICSPCLK."
      },
      {
        "number": "19",
        "name": "RB7",
        "type": "bidirectional",
        "description": "Bidirectional PORTB pin RB7 with analog input ANB7, DAC1OUT2, UART2 receive RX2, Timer6 input T6IN, CLCIN3, interrupt-on-change IOCB7 and ICSP data ICSPDAT."
      },
      {
        "number": "20",
        "name": "RE3",
        "type": "input",
        "description": "Input-only pin RE3 that also serves as the active-low master clear MCLR and programming voltage VPP, with interrupt-on-change IOCE3."
      },
      {
        "number": "21",
        "name": "RA0",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA0 with analog input ANA0, comparator inputs C1IN0-/C2IN0-, CLC input CLCIN0 and interrupt-on-change IOCA0."
      },
      {
        "number": "22",
        "name": "RA1",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA1 with analog input ANA1, comparator inputs C1IN1-/C2IN1-, CLC input CLCIN1 and interrupt-on-change IOCA1."
      },
      {
        "number": "23",
        "name": "RA2",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA2 with analog input ANA2, VREF- negative reference, DAC1OUT1 output, comparator inputs C1IN0+/C2IN0+ and interrupt-on-change IOCA2."
      },
      {
        "number": "24",
        "name": "RA3",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA3 with analog input ANA3, VREF+ positive reference, comparator input C1IN1+, MDCARL input and interrupt-on-change IOCA3."
      },
      {
        "number": "25",
        "name": "RA4",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA4 with analog input ANA4, MDCARH input, Timer0 clock input T0CKI and interrupt-on-change IOCA4."
      },
      {
        "number": "26",
        "name": "RA5",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA5 with analog input ANA5, SPI1 slave select SS1, MDSRC input and interrupt-on-change IOCA5."
      },
      {
        "number": "27",
        "name": "RE0",
        "type": "bidirectional",
        "description": "Bidirectional PORTE pin RE0 with analog input ANE0."
      },
      {
        "number": "28",
        "name": "RE1",
        "type": "bidirectional",
        "description": "Bidirectional PORTE pin RE1 with analog input ANE1."
      },
      {
        "number": "29",
        "name": "RE2",
        "type": "bidirectional",
        "description": "Bidirectional PORTE pin RE2 with analog input ANE2."
      },
      {
        "number": "30",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply pin; all VDD pins must be connected at the circuit board level, since floating VDD may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all VSS pins must be connected at the circuit board level, since floating VSS may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "32",
        "name": "RA7",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA7 with analog input ANA7, oscillator input OSC1/CLKIN and interrupt-on-change IOCA7."
      },
      {
        "number": "33",
        "name": "RA6",
        "type": "bidirectional",
        "description": "Bidirectional PORTA pin RA6 with analog input ANA6, oscillator output OSC2/CLKOUT and interrupt-on-change IOCA6."
      },
      {
        "number": "34",
        "name": "RC0",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC0 with analog input ANC0, Timer1 clock T1CKI, Timer3 clock T3CKI, Timer3 gate T3G, SMT window input SMTWIN1, secondary oscillator output SOSCO and interrupt-on-change IOCC0."
      },
      {
        "number": "35",
        "name": "RC1",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC1 with analog input ANC1, SMT signal input SMTSIG1, CCP2, secondary oscillator input SOSCI and interrupt-on-change IOCC1."
      },
      {
        "number": "36",
        "name": "RF0",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF0 with analog input ANF0."
      },
      {
        "number": "37",
        "name": "RF1",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF1 with analog input ANF1."
      },
      {
        "number": "38",
        "name": "RF2",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF2 with analog input ANF2."
      },
      {
        "number": "39",
        "name": "RF3",
        "type": "bidirectional",
        "description": "Bidirectional PORTF pin RF3 with analog input ANF3."
      },
      {
        "number": "40",
        "name": "RC2",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC2 with analog input ANC2, Timer5 clock T5CKI, CCP1 and interrupt-on-change IOCC2."
      },
      {
        "number": "41",
        "name": "RC3",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC3 with analog input ANC3, I2C1 clock SCL1 (I2C/SMBus logic levels), SPI1 clock SCK1, Timer2 input T2IN and interrupt-on-change IOCC3."
      },
      {
        "number": "42",
        "name": "RD0",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD0 with analog input AND0."
      },
      {
        "number": "43",
        "name": "RD1",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD1 with analog input AND1."
      },
      {
        "number": "44",
        "name": "RD2",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD2 with analog input AND2."
      },
      {
        "number": "45",
        "name": "RD3",
        "type": "bidirectional",
        "description": "Bidirectional PORTD pin RD3 with analog input AND3."
      },
      {
        "number": "46",
        "name": "RC4",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC4 with analog input ANC4, I2C1 data SDA1 (I2C/SMBus logic levels), SPI1 data input SDI1 and interrupt-on-change IOCC4."
      },
      {
        "number": "47",
        "name": "RC5",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC5 with analog input ANC5, Timer4 input T4IN and interrupt-on-change IOCC5."
      },
      {
        "number": "48",
        "name": "RC6",
        "type": "bidirectional",
        "description": "Bidirectional PORTC pin RC6 with analog input ANC6, UART1 CTS1 and interrupt-on-change IOCC6."
      }
    ],
    "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: Package hint 'TQFP-48(7x7)': the 7x7 body size does not appear in the supplied text. The 48-pin TQFP; The datasheet is inconsistent about TQFP pin counts. Table 2 lists a TQFP for PIC18(L)F55K42 without; Source is an Advance Information document (DS40001861B, 2016). Table 2 note says pin details are sub"
        ],
        "pages_sent": 18,
        "cost_usd": 0.1854,
        "at": "2026-10-21T01:30:24"
      },
      "datasheet": {
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        "pages": 18,
        "sha256": "16bc59ced9cdc213",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "sha256": "14ca7676e4932e92f0eca0c6d56ce3018cd28a2531204a70ab7bbacb3eeb3cf5",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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        {
          "name": "Operating voltage range (PIC18F2X/4X/5XK42, non-LF)",
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          "kind": "recommended_operating",
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          "min": 2.3,
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          "max": 5.5,
          "conditions": "PIC18F2X/4X/5XK42 (not the PIC18LF variant)",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Temperature range, industrial",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial grade (-I suffix)",
          "source_page": 1,
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        {
          "name": "High-precision internal oscillator accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
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          "max": 1,
          "conditions": "At calibration (nominal)",
          "source_page": 2,
          "source": "datasheet"
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  "discovery_pitch": "PIC18F55K42-I (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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