PIC16F876AT-I

{
  "schema_version": 1,
  "type": "component",
  "slug": "pic16f876at-i",
  "title": "PIC16F876AT-I",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-28-300mil. 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",
    "pic16f876at-i",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "PIC16F876AT-I",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589795842367385600",
    "parts": {
      "symbol": "pic16f876at-i.kicad_sym",
      "footprint": "pic16f876at-i.kicad_mod",
      "model_3d": "pic16f876at-i-hero.glb",
      "model_3d_plain": "pic16f876at-i-etched.glb",
      "model_3d_step": "pic16f876at-i-etched.step",
      "model_3d_step_plain": "pic16f876at-i.step",
      "lbr": "pic16f876at-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C629746"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:18:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MCLR/VPP",
        "type": "input",
        "description": "Active-low Master Clear (Reset) input to the device through an ST buffer, which also serves as the programming voltage input (VPP)."
      },
      {
        "number": "2",
        "name": "RA0/AN0",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 0."
      },
      {
        "number": "3",
        "name": "RA1/AN1",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 1."
      },
      {
        "number": "4",
        "name": "RA2/AN2/VREF-/CVREF",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 2, the A/D reference voltage (low) input, and the comparator VREF output."
      },
      {
        "number": "5",
        "name": "RA3/AN3/VREF+",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 3 and the A/D reference voltage (high) input."
      },
      {
        "number": "6",
        "name": "RA4/T0CKI/C1OUT",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (ST buffer), open-drain when configured as an output, that also serves as the Timer0 external clock input and the Comparator 1 output."
      },
      {
        "number": "7",
        "name": "RA5/AN4/SS/C2OUT",
        "type": "bidirectional",
        "description": "PORTA bidirectional digital I/O (TTL buffer) that also serves as analog input 4, the SPI slave select input, and the Comparator 2 output."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "9",
        "name": "OSC1/CLKI",
        "type": "input",
        "description": "Oscillator crystal input or external clock source input (ST buffer in RC mode, otherwise CMOS)."
      },
      {
        "number": "10",
        "name": "OSC2/CLKO",
        "type": "output",
        "description": "Oscillator crystal output connecting to a crystal or resonator; in RC mode it outputs CLKO at 1/4 the OSC1 frequency, denoting the instruction cycle rate."
      },
      {
        "number": "11",
        "name": "RC0/T1OSO/T1CKI",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the Timer1 oscillator output and the Timer1 external clock input."
      },
      {
        "number": "12",
        "name": "RC1/T1OSI/CCP2",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the Timer1 oscillator input and the CCP2 capture input / compare output / PWM output."
      },
      {
        "number": "13",
        "name": "RC2/CCP1",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the CCP1 capture input / compare output / PWM output."
      },
      {
        "number": "14",
        "name": "RC3/SCK/SCL",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the synchronous serial clock input/output for SPI mode and for I2C mode."
      },
      {
        "number": "15",
        "name": "RC4/SDI/SDA",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the SPI data input and the I2C data I/O."
      },
      {
        "number": "16",
        "name": "RC5/SDO",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the SPI data output."
      },
      {
        "number": "17",
        "name": "RC6/TX/CK",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the USART asynchronous transmit output and the USART synchronous clock."
      },
      {
        "number": "18",
        "name": "RC7/RX/DT",
        "type": "bidirectional",
        "description": "PORTC bidirectional digital I/O (ST buffer) that also serves as the USART asynchronous receive input and the USART synchronous data."
      },
      {
        "number": "19",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "21",
        "name": "RB0/INT",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL/ST buffer, Schmitt trigger when used as external interrupt) with internal weak pull-up programmable, that also serves as the external interrupt input."
      },
      {
        "number": "22",
        "name": "RB1",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
      },
      {
        "number": "23",
        "name": "RB2",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
      },
      {
        "number": "24",
        "name": "RB3/PGM",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL buffer) that also serves as the low-voltage (single-supply) ICSP programming enable pin."
      },
      {
        "number": "25",
        "name": "RB4",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
      },
      {
        "number": "26",
        "name": "RB5",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL buffer) with software-programmable internal weak pull-up."
      },
      {
        "number": "27",
        "name": "RB6/PGC",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL/ST buffer) that also serves as the in-circuit debugger and ICSP programming clock."
      },
      {
        "number": "28",
        "name": "RB7/PGD",
        "type": "bidirectional",
        "description": "PORTB bidirectional digital I/O (TTL/ST buffer) that also serves as the in-circuit debugger and ICSP programming data."
      }
    ],
    "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 28-pin pinout is given as one table with a shared pin-number column for PDIP, SOIC and SSOP (Tab; The ordering code PIC16F876AT-I is not explained in the provided text. The product identification sy"
        ],
        "pages_sent": 37,
        "cost_usd": 0.2127,
        "at": "2026-10-18T07:16:37"
      },
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        "pages": 234,
        "sha256": "94f1cb4c43edd96e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-28-300mil",
      "Category": "Embedded Processors & Controllers",
      "Pins": "28"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "94f1cb4c43edd96e17f528766f3904dd5936849aa128221a314b4f003c296f05",
      "rows": [
        {
          "name": "Ambient temperature under bias",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Storage temperature",
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          "unit": "°C",
          "min": -65,
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        {
          "name": "Voltage on VDD with respect to VSS",
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          "unit": "V",
          "min": -0.3,
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        {
          "name": "Voltage on any pin with respect to VSS (except VDD, MCLR, RA4)",
          "symbol": "",
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          "source_page": 173,
          "source": "datasheet"
        },
        {
          "name": "Voltage on MCLR with respect to VSS",
          "symbol": "MCLR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 14,
          "conditions": "Note 2 (latch-up; series resistor 50-100 ohm for low level)",
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        {
          "name": "Voltage on RA4 with respect to VSS",
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        {
          "name": "Total power dissipation",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Note 1",
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        },
        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VI < 0 or VI > VDD",
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        {
          "name": "Output clamp current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VO < 0 or VO > VDD",
          "source_page": 173,
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        },
        {
          "name": "VDD Supply Voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 5.5,
          "conditions": "All configurations (PIC16F87XA, not LF)",
          "source_page": 175,
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        },
        {
          "name": "VDD Rise Rate to ensure internal Power-on Reset signal",
          "symbol": "SVDD",
          "kind": "electrical",
          "unit": "V/ms",
          "min": 0.05,
          "typ": null,
          "max": null,
          "conditions": "See Section 14.5 Power-on Reset",
          "source_page": 175,
          "source": "datasheet"
        },
        {
          "name": "Brown-out Reset Voltage",
          "symbol": "VBOR",
          "kind": "electrical",
          "unit": "V",
          "min": 3.65,
          "typ": 4,
          "max": 4.35,
          "conditions": "BODEN bit in configuration word enabled",
          "source_page": 175,
          "source": "datasheet"
        },
        {
          "name": "Supply current, XT/RC oscillator configurations",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.6,
          "max": 4,
          "conditions": "XT, RC osc configurations, FOSC = 4 MHz, VDD = 5.5V",
          "source_page": 176,
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        },
        {
          "name": "Supply current, HS oscillator configuration",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 7,
          "max": 15,
          "conditions": "HS osc configuration, FOSC = 20 MHz, VDD = 5.5V",
          "source_page": 176,
          "source": "datasheet"
        },
        {
          "name": "Brown-out Reset current",
          "symbol": "IBOR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 85,
          "max": 200,
          "conditions": "BOR enabled, VDD = 5.0V",
          "source_page": 176,
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        {
          "name": "Power-down current, WDT enabled",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 10.5,
          "max": 42,
          "conditions": "VDD = 4.0V, WDT enabled, -40°C to +85°C",
          "source_page": 177,
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        {
          "name": "Power-down current, WDT disabled",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.5,
          "max": 16,
          "conditions": "VDD = 4.0V, WDT disabled, -40°C to +85°C",
          "source_page": 177,
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        },
        {
          "name": "Power-down current, WDT disabled (D021A row)",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.5,
          "max": 19,
          "conditions": "VDD = 4.0V, WDT disabled, -40°C to +85°C",
          "source_page": 177,
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        },
        {
          "name": "Input low voltage, I/O ports with TTL buffer",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "4.5V <= VDD <= 5.5V",
          "source_page": 178,
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        },
        {
          "name": "Input low voltage, OSC1 (XT and LP modes)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "OSC1 in XT and LP modes (Note 1)",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage, RC3/RC4 with SMBus",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.6,
          "conditions": "VDD = 4.5 to 5.5V",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, I/O ports with TTL buffer",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "4.5V <= VDD <= 5.5V; max printed as VDD",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, OSC1 (XT and LP modes)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": null,
          "conditions": "OSC1 in XT and LP modes (Note 1); max printed as VDD",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, RC3/RC4 with SMBus",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": 5.5,
          "conditions": "VDD = 4.5 to 5.5V",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "PORTB weak pull-up current",
          "symbol": "IPURB",
          "kind": "electrical",
          "unit": "µA",
          "min": 50,
          "typ": 250,
          "max": 400,
          "conditions": "VDD = 5V, VPIN = VSS, -40°C TO +85°C",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, I/O ports",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VSS <= VPIN <= VDD, pin at high-impedance",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, MCLR and RA4/T0CKI",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VSS <= VPIN <= VDD",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, OSC1",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VSS <= VPIN <= VDD, XT, HS and LP osc configuration",
          "source_page": 178,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, I/O ports",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOL = 8.5 mA, VDD = 4.5V, -40°C to +85°C",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, OSC2/CLKO (RC osc config)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOL = 1.6 mA, VDD = 4.5V, -40°C to +85°C",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Open-drain high voltage, RA4 pin (characterized, not tested)",
          "symbol": "VOD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 8.5,
          "conditions": "RA4 pin",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Capacitive loading, OSC2 pin",
          "symbol": "COSC2",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "XT, HS and LP modes when external clock drives OSC1",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Capacitive loading, all I/O pins and OSC2 (RC mode)",
          "symbol": "CIO",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Capacitive loading, SCL, SDA (I2C mode)",
          "symbol": "CB",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Data EEPROM endurance",
          "symbol": "ED",
          "kind": "electrical",
          "unit": "K E/W",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "-40°C to +85°C",
          "source_page": 179,
          "source": "datasheet"
        },
        {
          "name": "Data EEPROM erase/write cycle time",
          "symbol": "TDEW",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 4,
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