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Ray Set visibility: public c0caf29 8d ago
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{
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  "slug": "ch32v003j4m6",
  "title": "CH32V003J4M6",
  "brief": "WCH Jiangsu Qin Heng Microcontrollers (MCU/MPU/SOC), SOP-8. 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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    "ch32v003j4m6",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "CH32V003J4M6",
    "manufacturer": "WCH Jiangsu Qin Heng",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757221841708826624",
    "parts": {
      "symbol": "ch32v003j4m6.kicad_sym",
      "footprint": "ch32v003j4m6.kicad_mod",
      "model_3d": "ch32v003j4m6-hero.glb",
      "model_3d_plain": "ch32v003j4m6-etched.glb",
      "model_3d_step": "ch32v003j4m6-etched.step",
      "model_3d_step_plain": "ch32v003j4m6.step",
      "lbr": "ch32v003j4m6.lbr"
    },
    "distributor_links": {
      "lcsc": "C5346354"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:20:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "PD6",
        "type": "bidirectional",
        "description": "I/O/A pin whose default function is PD6, with URX/A6 as its default multiplexed functions (A6 is ADC input channel 6) and T2CH3_3/UTX_2 as remap options."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; the datasheet states all voltages are referenced to VSS."
      },
      {
        "number": "3",
        "name": "PA2",
        "type": "bidirectional",
        "description": "I/O/A pin whose default function is PA2, with A0/OPP0 and OSCO/T1CH2N as default multiplexed functions (A0 is ADC input channel 0)."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin: VDD = 2.7 to 5.5 V powers the I/O pins and the internal regulator, and the datasheet notes ADC performance degrades below 2.9 V."
      },
      {
        "number": "5",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O whose default function is SDA/NSS, with URX_3 and T1BKIN_1/T2CH4_1 among its remap options."
      },
      {
        "number": "6",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O whose default function is SCL/URTS/T1BKIN, with AETR_1 and T2CH2_1 among its remap options."
      },
      {
        "number": "7",
        "name": "PC4",
        "type": "bidirectional",
        "description": "I/O/A pin whose default function is PC4, with T1CH4/MCO and A2 (ADC input channel 2) as default multiplexed functions."
      },
      {
        "number": "8",
        "name": "PD1",
        "type": "bidirectional",
        "description": "I/O/A pin whose default function is PD1 with SWIO (single-wire debug interface) as a default multiplexed function, plus T1CH3N and AETR2 alternates."
      }
    ],
    "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: Table 2-1 lists SOP8 pin 1 for both PD6 and PA1 (and pin 3 for PA2); the SOP8 pin drawing text on pa; Table 2-1 lists SOP8 pin 8 for PD1, PD4 and PD5 simultaneously. Only PD1 is assigned to pin 8 here (; Table 2-1 gives conflicting SOP8 positions for these pins (see pins 1 and 8), so they are excluded f"
        ],
        "pages_sent": 31,
        "cost_usd": 0.142,
        "at": "2026-10-18T17:19:25"
      },
      "datasheet": {
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        "pages": 31,
        "sha256": "2c05b25a3ef9269c",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch32v003j4m6-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "WCH Jiangsu Qin Heng",
      "Package": "SOP-8",
      "Category": "Embedded Processors & Controllers",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2c05b25a3ef9269ca3685db09de05a2b31c650e1b389b0cecc735d4176985b91",
      "rows": [
        {
          "name": "工作时的环境温度 (operating ambient temperature)",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "存储时的环境温度 (storage temperature)",
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          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "外部主供电电压 (VDD-VSS)",
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          "kind": "absolute_maximum",
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          "min": -0.3,
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        {
          "name": "FT (5V-tolerant) pin input voltage",
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          "conditions": "FT (5V-tolerant) pins",
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        {
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        {
          "name": "Total current through VDD power line (supply current)",
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        {
          "name": "Total current through VSS ground line (sink current)",
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          "symbol": "IIO",
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        {
          "name": "Output current on any I/O and control pin",
          "symbol": "IIO",
          "kind": "absolute_maximum",
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          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "any I/O and control pin",
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        },
        {
          "name": "Injection current on HSE OSC_IN pin",
          "symbol": "IINJ(PIN)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "HSE OSC_IN pin",
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        {
          "name": "Injection current on other pins",
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          "name": "Total injection current on all I/O and control pins",
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        {
          "name": "Internal AHB clock frequency",
          "symbol": "FHCLK",
          "kind": "recommended_operating",
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          "name": "Standard operating voltage VDD",
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        {
          "name": "Standard operating voltage VDD",
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          "name": "Ambient temperature",
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        {
          "name": "Junction temperature range",
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        {
          "name": "VDD rise rate",
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          "name": "VDD fall rate",
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          "kind": "timing",
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          "conditions": "VDD falling",
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        {
          "name": "Power-on/power-down reset threshold (rising edge)",
          "symbol": "VPOR/PDR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.32,
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          "max": 2.68,
          "conditions": "rising edge",
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        {
          "name": "Power-on/power-down reset threshold (falling edge)",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": 2.48,
          "max": 2.66,
          "conditions": "falling edge",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Power-on reset delay",
          "symbol": "tRSTTEMPO",
          "kind": "timing",
          "unit": "mS",
          "min": 1,
          "typ": 1.5,
          "max": 21,
          "conditions": "power-on reset",
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          "source": "datasheet"
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        {
          "name": "Internal reference voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.17,
          "typ": 1.2,
          "max": 1.23,
          "conditions": "TA = -40℃~85℃",
          "source_page": 16,
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        {
          "name": "ADC sample time when reading internal reference voltage",
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          "conditions": "reading internal reference voltage",
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        {
          "name": "Page (64 bytes) programming time",
          "symbol": "tERASE_64",
          "kind": "timing",
          "unit": "ms",
          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃~85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Page (64 bytes) erase time",
          "symbol": "tERASE",
          "kind": "timing",
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          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃~85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "16-bit programming time",
          "symbol": "tprog",
          "kind": "timing",
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          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃~85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Full chip erase time",
          "symbol": "tME",
          "kind": "timing",
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          "min": 2.4,
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          "conditions": "TA = -20℃~85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "Programming voltage",
          "symbol": "Vprog",
          "kind": "electrical",
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          "min": 2.8,
          "typ": null,
          "max": 5.5,
          "conditions": "",
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        {
          "name": "FT I/O pin input high-level voltage",
          "symbol": "VIH",
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          "min": null,
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          "max": 5.5,
          "conditions": "FT I/O pin",
          "source_page": 20,
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        {
          "name": "Standard I/O pin input low-level voltage",
          "symbol": "VIL",
          "kind": "electrical",
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          "min": -0.3,
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        {
          "name": "FT I/O pin input low-level voltage",
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          "min": -0.3,
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          "conditions": "FT I/O pin",
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        {
          "name": "Output low-level voltage, 8 pins sinking (TTL port)",
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          "source_page": 20,
          "source": "datasheet"
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        {
          "name": "Output low-level voltage, 8 pins sinking (CMOS port)",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 0.4,
          "conditions": "CMOS port, IIO = +8mA, 2.7V< VDD <5.5V",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "Output high-level voltage, 8 pins sourcing (CMOS port)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
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          "max": null,
          "conditions": "CMOS port, IIO = +8mA, 2.7V< VDD <5.5V",
          "source_page": 20,
          "source": "datasheet"
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        {
          "name": "Output low-level voltage, 8 pins sinking (high-current)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "IIO = +20mA",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "External reset NRST input low-level voltage",
          "symbol": "VIL(NRST)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 21,
          "source": "datasheet"
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