PIC16F18855T-I

{
  "slug": "pic16f18855t-i",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "pic16f18855t-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "page.json",
    "README.md",
    "pic16f18855t-i.kicad_sym",
    "pic16f18855t-i.kicad_mod",
    "pic16f18855t-i.glb",
    "pic16f18855t-i.step",
    "pic16f18855t-i.lbr",
    "docs/hero.png",
    "docs/pic16f18855t-i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pic16f18855t-i-hero.glb",
    "pic16f18855t-i-hero.overlay.json",
    "pic16f18855t-i-etched.glb"
  ],
  "component": {
    "mpn": "PIC16F18855T-I",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/PIC16%28L%29F18855-75-Data-Sheet-40001802H.pdf",
    "parts": {
      "symbol": "pic16f18855t-i.kicad_sym",
      "footprint": "pic16f18855t-i.kicad_mod",
      "model_3d": "pic16f18855t-i-hero.glb",
      "model_3d_plain": "pic16f18855t-i-etched.glb",
      "model_3d_step": "pic16f18855t-i-etched.step",
      "model_3d_step_plain": "pic16f18855t-i.step",
      "lbr": "pic16f18855t-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C629630"
    },
    "distributor_check": {
      "checked_at": "2026-10-25T20:15:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VPP/MCLR/RE3",
        "type": "input",
        "description": "Master clear input with internal weak pull-up when MCLR is enabled; RE3 is general purpose input only when MCLR is disabled by the Configuration bit, and VPP is the ICSP high-voltage programming mode entry input."
      },
      {
        "number": "2",
        "name": "RA0",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A0 input, comparator negative input, CLC source input and interrupt-on-change input."
      },
      {
        "number": "3",
        "name": "RA1",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A1 input, comparator negative input, CLC source input and interrupt-on-change input."
      },
      {
        "number": "4",
        "name": "RA2",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A2 input, comparator positive input, external ADC/DAC negative reference VREF-, DAC1OUT1 output and interrupt-on-change input."
      },
      {
        "number": "5",
        "name": "RA3",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A3 input, comparator positive input, external ADC/DAC positive reference VREF+, modular carrier input MDCARL and interrupt-on-change input."
      },
      {
        "number": "6",
        "name": "RA4",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A4 input, modular carrier input MDCARH, Timer0 clock input T0CKI, CCP5 capture/compare/PWM and interrupt-on-change input."
      },
      {
        "number": "7",
        "name": "RA5",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A5 input, MSSP1 SPI client select input SS1, modulator source input MDSRC and interrupt-on-change input."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all VSS and VDD pins must be connected at the circuit board level, since floating one may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "9",
        "name": "RA7",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A7 input, OSC1 crystal/resonator driver input (LP, XT, HS), external digital clock input CLKIN and interrupt-on-change input."
      },
      {
        "number": "10",
        "name": "RA6",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel A6 input, OSC2 crystal/resonator driver output (LP, XT, HS), FOSC/4 CLKOUT output in non-crystal modes and interrupt-on-change input."
      },
      {
        "number": "11",
        "name": "RC0",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C0 input, Timer1/Timer3 clock and Timer3 gate inputs, SMT1 window input, interrupt-on-change input and 32.768 kHz secondary oscillator driver output SOSCO."
      },
      {
        "number": "12",
        "name": "RC1",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C1 input, SMT1 signal input, CCP2 default capture input, interrupt-on-change input and 32.768 kHz secondary oscillator driver input SOSCI."
      },
      {
        "number": "13",
        "name": "RC2",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C2 input, Timer5 external clock input T5CKI, CCP1 default capture input and interrupt-on-change input."
      },
      {
        "number": "14",
        "name": "RC3",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C3 input, MSSP1 I2C clock SCL1 (I2C/SMBus levels), SPI clock SCK1, Timer2 external input T2IN and interrupt-on-change input."
      },
      {
        "number": "15",
        "name": "RC4",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C4 input, MSSP1 I2C serial data SDA1 (I2C/SMBus levels), SPI data input SDI1 and interrupt-on-change input."
      },
      {
        "number": "16",
        "name": "RC5",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C5 input, Timer4 external input T4IN and interrupt-on-change input."
      },
      {
        "number": "17",
        "name": "RC6",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C6 input, EUSART synchronous mode clock CK input/output and interrupt-on-change input."
      },
      {
        "number": "18",
        "name": "RC7",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel C7 input, EUSART asynchronous receiver input RX, EUSART synchronous data DT input/output and interrupt-on-change input."
      },
      {
        "number": "19",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all VSS and VDD pins must be connected at the circuit board level, since floating one may degrade electrical performance or cause non-functionality."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage input; all VDD and VSS pins must be connected at the circuit board level."
      },
      {
        "number": "21",
        "name": "RB0",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B0 input, comparator C2IN1+ input, zero-cross detect input ZCD, external interrupt INT input, CCP4 default capture input and interrupt-on-change input."
      },
      {
        "number": "22",
        "name": "RB1",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B1 input, comparator negative inputs C1IN3-/C2IN3-, MSSP2 I2C clock SCL2 (I2C/SMBus levels), SPI clock SCK2, CWG2 input CWG2IN and interrupt-on-change input."
      },
      {
        "number": "23",
        "name": "RB2",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B2 input, MSSP2 I2C serial data SDA2 (I2C/SMBus levels), SPI data input SDI2, CWG3 input CWG3IN and interrupt-on-change input."
      },
      {
        "number": "24",
        "name": "RB3",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B3 input, comparator negative inputs C1IN2-/C2IN2- and interrupt-on-change input."
      },
      {
        "number": "25",
        "name": "RB4",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B4 input, ADC auto-conversion trigger ADCACT, Timer5 gate input T5G, SMT2 window input SMTWIN2 and interrupt-on-change input."
      },
      {
        "number": "26",
        "name": "RB5",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B5 input, Timer1 gate input T1G, SMT2 signal input SMTSIG2, CCP3 default capture input and interrupt-on-change input."
      },
      {
        "number": "27",
        "name": "RB6",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B6 input, CLC source input CLCIN2, interrupt-on-change input and ICSP clock input ICSPCLK."
      },
      {
        "number": "28",
        "name": "RB7",
        "type": "bidirectional",
        "description": "General purpose I/O also serving as ADC channel B7 input, DAC1OUT2 output, Timer6 external clock input T6IN, CLC source input CLCIN3, interrupt-on-change input and ICSP data input/output ICSPDAT."
      }
    ],
    "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: The garbled page-4 pin diagram text lists a stray 'VSS 21' next to the right-side numbers. I assigne; Text extraction scrambled the order of RC4-RC7 (shown as 'RC5 RC4 RC7 RC6'). I assigned RC4=15, RC5=; The pin diagram was not fully legible in the extracted text. VPP/MCLR/RE3 at pin 1 and VSS at pins 8",
          "16/28 pins cited to the wrong page (name found elsewhere): ['6:RA4@p19', '9:RA7@p20', '11:RC0@p22', '12:RC1@p22']"
        ],
        "pages_sent": 91,
        "cost_usd": 0.4091,
        "at": "2026-10-25T20:14:50"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/aemDocuments/documents/MCU08/ProductDocuments/DataSheets/PIC16%28L%29F18855-75-Data-Sheet-40001802H.pdf",
        "pages": 673,
        "sha256": "d61c614d646362d9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pic16f18855t-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          17.9,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-10-25",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic16f18855t-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3c9b699cd92bf199327c4bc7f9a9af97e92f596254a5a47e55fb867ecc205fed",
        "checked": "2026-10-25",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}