CH32V003A4M6

{
  "schema_version": 1,
  "type": "component",
  "slug": "ch32v003a4m6",
  "title": "CH32V003A4M6",
  "brief": "WCH Jiangsu Qin Heng Microcontrollers (MCU/MPU/SOC), SOP-16. 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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    "embedded processors & controllers",
    "ch32v003a4m6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CH32V003A4M6",
    "manufacturer": "WCH Jiangsu Qin Heng",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757221805532684288",
    "parts": {
      "symbol": "ch32v003a4m6.kicad_sym",
      "footprint": "ch32v003a4m6.kicad_mod",
      "model_3d": "ch32v003a4m6-hero.glb",
      "model_3d_plain": "ch32v003a4m6-etched.glb",
      "model_3d_step": "ch32v003a4m6-etched.step",
      "model_3d_step_plain": "ch32v003a4m6.step",
      "lbr": "ch32v003a4m6.lbr"
    },
    "distributor_links": {
      "lcsc": "C5346357"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:31:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5V-tolerant (FT) I/O with default function PC1 and I2C SDA / SPI NSS as default alternates; remap options include TIM1 BKIN, TIM2 CH4 / CH1ETR and USART RX."
      },
      {
        "number": "2",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5V-tolerant (FT) I/O with default function PC2 and I2C SCL / USART RTS / TIM1 BKIN as default alternates; remap options include ADC ETR, TIM2 CH2 and TIM1 ETR."
      },
      {
        "number": "3",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O (no FT rating stated) with default function PC3 and TIM1 CH3 as default alternate; remap options include TIM1 CH1N and USART CTS."
      },
      {
        "number": "4",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PC4, ADC input A2, TIM1 CH4 and MCO clock output as default alternates; remap options include TIM1 CH2N and TIM1 CH1."
      },
      {
        "number": "5",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5V-tolerant (FT) I/O with default function PC6 and SPI MOSI as default alternate; remap options include TIM1 CH1, USART CTS and I2C SDA."
      },
      {
        "number": "6",
        "name": "PC7",
        "type": "bidirectional",
        "description": "General-purpose I/O (no FT rating stated) with default function PC7 and SPI MISO as default alternate; remap options include TIM1 CH2, TIM2 CH2 and USART RTS."
      },
      {
        "number": "7",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) whose SWIO single-wire debug function is enabled by default after power-on or reset; the datasheet notes HSI must be enabled when using the single-wire debug interface."
      },
      {
        "number": "8",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PD4, ADC input A7, USART clock UCK and TIM2 CH1 ETR as default alternates; OPA output OPO is also available."
      },
      {
        "number": "9",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PD5, ADC input A5 and USART TX as default alternates; remap options include TIM2 CH4 and USART RX."
      },
      {
        "number": "10",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PD6, ADC input A6 and USART RX as default alternates; remap options include TIM2 CH3 and USART TX."
      },
      {
        "number": "11",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PD7 that also serves as the NRST external reset input (internal pull-up 35/45/55 kΩ); NRST input thresholds are given in section 3.3.10."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PA1, ADC input A1 and TIM1 CH2 as default alternates; the pin also carries OSCI (HSE oscillator input) and OPA N0."
      },
      {
        "number": "13",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Analog-capable I/O (I/O/A) with default function PA2, ADC input A0 and TIM1 CH2N as default alternates; the pin also carries OSCO (HSE oscillator output) and OPA P0."
      },
      {
        "number": "14",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; the datasheet states all voltages are referenced to VSS and the VDD-VSS absolute maximum is 5.5 V."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin powering the I/O pins and internal regulator, rated 2.7-5.5 V (2.8 V minimum recommended when using the ADC; absolute maximum VDD-VSS of 5.5 V)."
      },
      {
        "number": "16",
        "name": "PC0",
        "type": "bidirectional",
        "description": "General-purpose I/O (no FT rating stated) with default function PC0 and TIM2 CH3 / USART TX as default alternates; remap options include SPI NSS and TIM1 CH3."
      }
    ],
    "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: Pin numbers and default/alternate functions were taken from the SOP16 column of Table 2-1 (page 11).; Ports PC5, PD0, PD2 and PD3 are not bonded out on the SOP16 package (shown as '-' in the SOP16 colum; Pin types were mapped to KiCad ERC classes: I/O pins as bidirectional, VSS as power_in (ground), and"
        ],
        "pages_sent": 31,
        "cost_usd": 0.1465,
        "at": "2026-10-18T20:28:46"
      },
      "datasheet": {
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        "pages": 31,
        "sha256": "2c05b25a3ef9269c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "file": "ch32v003a4m6.step",
        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch32v003a4m6-etched.step",
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        "sha256": "bcc6db15de58ea8ded346853859135f7616f1b21405775a88f58b88c655cc15b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WCH Jiangsu Qin Heng",
      "Package": "SOP-16",
      "Category": "Embedded Processors & Controllers",
      "Pins": "16"
    },
    "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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          "source": "datasheet"
        },
        {
          "name": "存储时的环境温度 (storage temperature)",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "外部主供电电压 (VDD-VSS)",
          "symbol": "VDD-VSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "FT（耐受 5V）引脚上的输入电压",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "FT (5V tolerant) pins",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "不同主供电引脚之间的电压差",
          "symbol": "|ΔVDD_x|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
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        {
          "name": "不同接地引脚之间的电压差",
          "symbol": "|ΔVSS_x|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "ESD 静电放电电压（人体模型）",
          "symbol": "VESD(HBM)",
          "kind": "absolute_maximum",
          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "Human body model, non-contact",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "经过 VDD 电源线的总电流（供应电流）",
          "symbol": "IVDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "经过 VSS 地线的总电流（流出电流）",
          "symbol": "IVss",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "任意 I/O 和控制引脚上的灌电流",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Sink current, any I/O and control pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "任意 I/O 和控制引脚上的输出电流",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -20,
          "conditions": "Output current, any I/O and control pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "HSE 的 OSC_IN 引脚注入电流",
          "symbol": "IINJ(PIN)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "HSE OSC_IN pin",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "其他引脚的注入电流",
          "symbol": "IINJ(PIN)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "Other pins",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "所有 IO 和控制引脚的总注入电流",
          "symbol": "∑IINJ(PIN)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "内部 AHB 时钟频率",
          "symbol": "FHCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "标准工作电压 VDD",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "未使用 ADC",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "标准工作电压 VDD",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.8,
          "typ": null,
          "max": 5.5,
          "conditions": "使用 ADC（建议）",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "环境温度",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "结温度范围",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "VDD 上升速率",
          "symbol": "tVDD",
          "kind": "recommended_operating",
          "unit": "us/V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "VDD 下降速率",
          "symbol": "tVDD",
          "kind": "recommended_operating",
          "unit": "us/V",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "上电/掉电复位阈值 上升沿",
          "symbol": "VPOR/PDR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.32,
          "typ": 2.5,
          "max": 2.68,
          "conditions": "上升沿",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "上电/掉电复位阈值 下降沿",
          "symbol": "VPOR/PDR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": 2.48,
          "max": 2.66,
          "conditions": "下降沿",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "上电复位延时 (reset temporization)",
          "symbol": "tRSTTEMPO",
          "kind": "timing",
          "unit": "mS",
          "min": 1,
          "typ": 1.5,
          "max": 21,
          "conditions": "上电复位",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "内置参考电压",
          "symbol": "VREFINT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.17,
          "typ": 1.2,
          "max": 1.23,
          "conditions": "TA = -40℃～85℃",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "内部高速(HSI)RC 振荡器占空比",
          "symbol": "DuCyHSI",
          "kind": "electrical",
          "unit": "%",
          "min": 45,
          "typ": 50,
          "max": 55,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "HSI 振荡器的精度（校准后）",
          "symbol": "ACCHSI",
          "kind": "tolerance",
          "unit": "%",
          "min": -1.2,
          "typ": null,
          "max": 1.6,
          "conditions": "TA = 0℃～70℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "HSI 振荡器的精度（校准后）",
          "symbol": "ACCHSI",
          "kind": "tolerance",
          "unit": "%",
          "min": -2.2,
          "typ": null,
          "max": 2.2,
          "conditions": "TA = -40℃～85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "HSI 振荡器功耗",
          "symbol": "IDD(HSI)",
          "kind": "electrical",
          "unit": "uA",
          "min": 120,
          "typ": 180,
          "max": 270,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "内部低速(LSI)RC 振荡器频率",
          "symbol": "FLSI",
          "kind": "electrical",
          "unit": "KHz",
          "min": 100,
          "typ": 128,
          "max": 150,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "内部低速(LSI)RC 振荡器占空比",
          "symbol": "DuTyLSI",
          "kind": "electrical",
          "unit": "%",
          "min": 45,
          "typ": 50,
          "max": 55,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "外部时钟频率",
          "symbol": "FHSE_ext",
          "kind": "electrical",
          "unit": "MHz",
          "min": 4,
          "typ": 24,
          "max": 25,
          "conditions": "",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "谐振器频率",
          "symbol": "FOSC_IN",
          "kind": "electrical",
          "unit": "MHz",
          "min": 4,
          "typ": 24,
          "max": 25,
          "conditions": "使用晶体/陶瓷谐振器",
          "source_page": 18,
          "source": "datasheet"
        },
        {
          "name": "页（64 字节）编程时间",
          "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": "页（64 字节）擦除时间",
          "symbol": "tERASE",
          "kind": "timing",
          "unit": "ms",
          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃～85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "16 位的编程时间",
          "symbol": "tprog",
          "kind": "timing",
          "unit": "ms",
          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃～85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "整片擦除时间",
          "symbol": "tME",
          "kind": "timing",
          "unit": "ms",
          "min": 2.4,
          "typ": null,
          "max": 3.1,
          "conditions": "TA = -20℃～85℃",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "编程电压",
          "symbol": "Vprog",
          "kind": "electrical",
          "unit": "V",
          "min": 2.8,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 19,
          "source": "datasheet"
        },
        {
          "name": "FT IO 引脚，输入高电平电压",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 20,
          "source": "datasheet"
        },
        {
          "name": "标准 I/O 脚，输入低电平电压",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 20,
          "source": "datasheet"
        },
        {
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