PIC16F77-I

{
  "slug": "pic16f77-i",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontrollers (MCU/MPU/SOC), TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "pic16f77-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pic16f77-i.kicad_sym",
    "pic16f77-i.kicad_mod",
    "pic16f77-i.glb",
    "pic16f77-i.step",
    "pic16f77-i.lbr",
    "docs/hero.png",
    "docs/pic16f77-i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pic16f77-i-hero.glb",
    "pic16f77-i-hero.overlay.json",
    "pic16f77-i-etched.glb"
  ],
  "component": {
    "mpn": "PIC16F77-I",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-44(10x10)",
    "pin_count": 44,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182464926179328",
    "parts": {
      "symbol": "pic16f77-i.kicad_sym",
      "footprint": "pic16f77-i.kicad_mod",
      "model_3d": "pic16f77-i-hero.glb",
      "model_3d_plain": "pic16f77-i-etched.glb",
      "model_3d_step": "pic16f77-i-etched.step",
      "model_3d_step_plain": "pic16f77-i.step",
      "lbr": "pic16f77-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C127934"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T02:09:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RC7/RX/DT",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as USART asynchronous receive input (RX) or USART synchronous data I/O (DT)."
      },
      {
        "number": "2",
        "name": "RD4/PSP4",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 4 (PSP4)."
      },
      {
        "number": "3",
        "name": "RD5/PSP5",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 5 (PSP5)."
      },
      {
        "number": "4",
        "name": "RD6/PSP6",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 6 (PSP6)."
      },
      {
        "number": "5",
        "name": "RD7/PSP7",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 7 (PSP7)."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "8",
        "name": "RB0/INT",
        "type": "bidirectional",
        "description": "Digital I/O (TTL/Schmitt Trigger when used as external interrupt) that serves as external interrupt input INT; PORTB has software-programmable weak pull-up."
      },
      {
        "number": "9",
        "name": "RB1",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) with software-programmable PORTB weak pull-up."
      },
      {
        "number": "10",
        "name": "RB2",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) with software-programmable PORTB weak pull-up."
      },
      {
        "number": "11",
        "name": "RB3/PGM",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that serves as low-voltage ICSP programming enable pin (PGM)."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; these pins should be left unconnected."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; these pins should be left unconnected."
      },
      {
        "number": "14",
        "name": "RB4",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) with software-programmable PORTB weak pull-up."
      },
      {
        "number": "15",
        "name": "RB5",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) with software-programmable PORTB weak pull-up."
      },
      {
        "number": "16",
        "name": "RB6/PGC",
        "type": "bidirectional",
        "description": "Digital I/O (TTL/Schmitt Trigger in serial programming mode) that serves as In-Circuit Debugger and ICSP programming clock (PGC)."
      },
      {
        "number": "17",
        "name": "RB7/PGD",
        "type": "bidirectional",
        "description": "Digital I/O (TTL/Schmitt Trigger in serial programming mode) that serves as In-Circuit Debugger and ICSP programming data (PGD)."
      },
      {
        "number": "18",
        "name": "MCLR/VPP",
        "type": "input",
        "description": "Active-low master clear (Reset) input to the device, or programming voltage input (VPP)."
      },
      {
        "number": "19",
        "name": "RA0/AN0",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that also serves as analog input 0 (AN0)."
      },
      {
        "number": "20",
        "name": "RA1/AN1",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that also serves as analog input 1 (AN1)."
      },
      {
        "number": "21",
        "name": "RA2/AN2",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that also serves as analog input 2 (AN2)."
      },
      {
        "number": "22",
        "name": "RA3/AN3/VREF",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that also serves as analog input 3 (AN3) and A/D reference voltage input (VREF)."
      },
      {
        "number": "23",
        "name": "RA4/T0CKI",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input, open drain when configured as output) that serves as Timer0 external clock input (T0CKI)."
      },
      {
        "number": "24",
        "name": "RA5/SS/AN4",
        "type": "bidirectional",
        "description": "Digital I/O (TTL) that serves as SPI slave select input (SS) and analog input 4 (AN4)."
      },
      {
        "number": "25",
        "name": "RE0/RD/AN5",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port read control (RD) and analog input 5 (AN5)."
      },
      {
        "number": "26",
        "name": "RE1/WR/AN6",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port write control (WR) and analog input 6 (AN6)."
      },
      {
        "number": "27",
        "name": "RE2/CS/AN7",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port chip select control (CS) and analog input 7 (AN7)."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "29",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "30",
        "name": "OSC1/CLKI",
        "type": "input",
        "description": "Oscillator crystal input or external clock source input (ST buffer in RC mode, otherwise CMOS)."
      },
      {
        "number": "31",
        "name": "OSC2/CLKO",
        "type": "output",
        "description": "Oscillator crystal output for crystal/resonator mode; in RC mode outputs CLKO at 1/4 the frequency of OSC1."
      },
      {
        "number": "32",
        "name": "RC0/T1OSO/T1CKI",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as Timer1 oscillator output (T1OSO) and Timer1 external clock input (T1CKI)."
      },
      {
        "number": "33",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; these pins should be left unconnected."
      },
      {
        "number": "34",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected; these pins should be left unconnected."
      },
      {
        "number": "35",
        "name": "RC1/T1OSI/CCP2",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as Timer1 oscillator input (T1OSI) and Capture2 input/Compare2 output/PWM2 output (CCP2)."
      },
      {
        "number": "36",
        "name": "RC2/CCP1",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as Capture1 input/Compare1 output/PWM1 output (CCP1)."
      },
      {
        "number": "37",
        "name": "RC3/SCK/SCL",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as synchronous serial clock input/output for SPI mode (SCK) and I2C mode (SCL)."
      },
      {
        "number": "38",
        "name": "RD0/PSP0",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 0 (PSP0)."
      },
      {
        "number": "39",
        "name": "RD1/PSP1",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 1 (PSP1)."
      },
      {
        "number": "40",
        "name": "RD2/PSP2",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 2 (PSP2)."
      },
      {
        "number": "41",
        "name": "RD3/PSP3",
        "type": "bidirectional",
        "description": "Digital I/O (ST/TTL input) that serves as Parallel Slave Port data bit 3 (PSP3)."
      },
      {
        "number": "42",
        "name": "RC4/SDI/SDA",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as SPI data in (SDI) and I2C data I/O (SDA)."
      },
      {
        "number": "43",
        "name": "RC5/SDO",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as SPI data out (SDO)."
      },
      {
        "number": "44",
        "name": "RC6/TX/CK",
        "type": "bidirectional",
        "description": "Digital I/O (Schmitt Trigger input) that serves as USART asynchronous transmit (TX) and USART synchronous clock (CK)."
      }
    ],
    "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 44-pin TQFP pin numbers are taken from the 'QFP' column of Table 1-3 (PIC16F74/PIC16F77 pinout),; The 10x10 mm TQFP body size from the package hint does not appear in the provided text. The package ; Pin types are inferred from the datasheet I/O/P column. Pins with multiple functions (I/O with analo"
        ],
        "pages_sent": 33,
        "cost_usd": 0.1993,
        "at": "2026-10-21T02:05:28"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182464926179328",
        "pages": 174,
        "sha256": "81a107b5141fded6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 44,
        "described": 44,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pic16f77-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "61ecec1147f835d2c9d165c450b1c8d53e65b038f6ca1dac3066a2dfb1bbbb85",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic16f77-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e92119d5c06f93af4b6b5960704558f16d46cc45083f123a6b40f93d8bea648e",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}