main
Ray Set visibility: public 79f4c2f 18h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "pic12lf1840t39at-i",
  "title": "PIC12LF1840T39AT-I",
  "brief": "Microchip Tech RF Transceiver ICs, TSSOP-14. 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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    "radio frequency chip-antenna",
    "pic12lf1840t39at-i",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "PIC12LF1840T39AT-I",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Radio Frequency Chip/Antenna",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a7e020886ea8ea875e9c6f02c56accc9.pdf",
    "parts": {
      "symbol": "pic12lf1840t39at-i.kicad_sym",
      "footprint": "pic12lf1840t39at-i.kicad_mod",
      "model_3d": "pic12lf1840t39at-i-hero.glb",
      "model_3d_plain": "pic12lf1840t39at-i-etched.glb",
      "model_3d_step": "pic12lf1840t39at-i-etched.step",
      "model_3d_step_plain": "pic12lf1840t39at-i.step",
      "lbr": "pic12lf1840t39at-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C628289"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T17:38:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Device supply pin; the datasheet states 1.8V-3.6V operation for the device."
      },
      {
        "number": "2",
        "name": "RA5",
        "type": "bidirectional",
        "description": "General-purpose I/O RA5 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include OSC1/CLKIN, T1CKI, T1OSI, CCP1/P1A and EUSART RX/DT selectable via APFCON."
      },
      {
        "number": "3",
        "name": "RA4",
        "type": "bidirectional",
        "description": "General-purpose I/O RA4 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN3, OSC2/CLKOUT, T1G, MSSP SDO and EUSART TX/CK selectable via APFCON."
      },
      {
        "number": "4",
        "name": "RA3",
        "type": "input",
        "description": "Input pin RA3 shared with MCLR/VPP, providing the master clear function and the programming voltage VPP; it also offers interrupt-on-change."
      },
      {
        "number": "5",
        "name": "VDDRF",
        "type": "power_in",
        "description": "RF transmitter supply pin; the datasheet gives no voltage limit for this pin."
      },
      {
        "number": "6",
        "name": "CTRL",
        "type": "input",
        "description": "RF transmitter CTRL pin; the datasheet gives no pin-level electrical limit for it."
      },
      {
        "number": "7",
        "name": "RFOUT",
        "type": "output",
        "description": "RF transmitter output pin, with +10 dBm or 0 dBm configurable output power."
      },
      {
        "number": "8",
        "name": "VSSRF",
        "type": "power_in",
        "description": "RF transmitter ground pin; the datasheet gives no pin-level electrical limit for it."
      },
      {
        "number": "9",
        "name": "DATA",
        "type": "input",
        "description": "RF transmitter DATA pin; the transmitter supports FSK up to 100 kbps and OOK up to 10 kbps, but no pin-level limit is stated."
      },
      {
        "number": "10",
        "name": "XTAL",
        "type": "passive",
        "description": "RF crystal connection pin XTAL; the datasheet gives no pin-level electrical limit for it."
      },
      {
        "number": "11",
        "name": "RA2",
        "type": "bidirectional",
        "description": "General-purpose I/O RA2 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN2, CPS2, C1OUT, SRQ, T0CKI, CCP1/P1A, FLT0 and MSSP SDA/SDI/INT."
      },
      {
        "number": "12",
        "name": "RA1",
        "type": "bidirectional",
        "description": "General-purpose I/O RA1 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN1, VREF, CPS1, C1IN0-, SRI, EUSART RX/DT, MSSP SCL/SCK and ICSPCLK."
      },
      {
        "number": "13",
        "name": "RA0",
        "type": "bidirectional",
        "description": "General-purpose I/O RA0 with 25 mA sink/source, programmable weak pull-up and interrupt-on-change; alternate functions include AN0, DACOUT, CPS0, C1IN+, MDOUT and ICSPDAT/ICDDAT."
      },
      {
        "number": "14",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin for the device logic and I/O."
      }
    ],
    "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 datasheet text does not state a direction or ERC type for CTRL, DATA, XTAL and RFOUT. Types were; RA3 is typed as input from its MCLR/VPP function. The text notes that one pin is input-only but does; The text gives no pin-level electrical limits for the RF pins (VDDRF, VSSRF, CTRL, DATA, XTAL, RFOUT"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0188,
        "at": "2026-11-02T17:38:12"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a7e020886ea8ea875e9c6f02c56accc9.pdf",
        "pages": 6,
        "sha256": "dd51fa507a1c3326",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic12lf1840t39at-i-etched.step",
        "role": "eda",
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        "sha256": "f40d835409304cac27a60e2d9aff159031cbf2d5aef16ce747f68b4cdc6b341b",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TSSOP-14",
      "Category": "Radio Frequency Chip/Antenna",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dd51fa507a1c332602004a2fe6a49207d0a900fa416aff76d92176884edecea6",
      "rows": [
        {
          "name": "Operating voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 3.6,
          "conditions": "",
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        },
        {
          "name": "Operating clock frequency",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "Oscillator/clock input",
          "source_page": 1,
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        },
        {
          "name": "Precision internal oscillator calibration tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "Factory calibrated, typical",
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          "name": "Standby current RF Sleep",
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          "symbol": "",
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          "source_page": 1,
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        {
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          "symbol": "",
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          "unit": "mA",
          "min": null,
          "typ": 15.67,
          "max": null,
          "conditions": "@ 8 MHz, 3.0V, RF on at +10 dBm, typical",
          "source_page": 1,
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        },
        {
          "name": "Low-power watchdog timer current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "@ 3.0V, typical",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "PIC12LF1840T39AT-I (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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}