CH32X033F8P6

{
  "schema_version": 1,
  "type": "component",
  "slug": "ch32x033f8p6",
  "title": "CH32X033F8P6",
  "brief": "WCH Others, TSSOP-20. 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",
    "others",
    "ch32x033f8p6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CH32X033F8P6",
    "manufacturer": "WCH",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Others",
    "subcategory": "Others",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8786658251033329664",
    "parts": {
      "symbol": "ch32x033f8p6.kicad_sym",
      "footprint": "ch32x033f8p6.kicad_mod",
      "model_3d": "ch32x033f8p6-hero.glb",
      "model_3d_plain": "ch32x033f8p6-etched.glb",
      "model_3d_step": "ch32x033f8p6-etched.step",
      "model_3d_step_plain": "ch32x033f8p6.step",
      "lbr": "ch32x033f8p6.lbr"
    },
    "distributor_links": {
      "lcsc": "C19268290"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T12:49:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A6), default function MISO, with alternates T3C1, O1N0 and remappable T1BK_1, CK4_1, RTS4_4 selected through AFIO."
      },
      {
        "number": "2",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A7, not applicable to lots whose 5th-from-last lot digit is 0), default function MOSI, sharing this pin with PB0 which is bonded internally, so both must not be configured as outputs at the same time."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A9), default function RX4, with alternates O2N1 and remappable T1C3N_1."
      },
      {
        "number": "4",
        "name": "PB7",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function, default function T1C2N/O2P2/RTS3, and on this TSSOP20 CH32X033 package it can also be used as the RST function (remap RST(3))."
      },
      {
        "number": "5",
        "name": "PC16",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function, default function UDM (USB D-), sharing this pin with PC11 which is bonded internally so both must not be configured as outputs at the same time, and requiring an external pull-up resistor when the I2C function is used."
      },
      {
        "number": "6",
        "name": "PC17",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function, default function UDP (USB D+), sharing this pin with PC10 which is bonded internally so both must not be configured as outputs at the same time; PC17 is the BOOT detection pin and is read high at power-up to enter the system boot area."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for all voltages on the device."
      },
      {
        "number": "8",
        "name": "PC18",
        "type": "bidirectional",
        "description": "General-purpose I/O, default function DIO (SWDIO serial debug data) with alternate PIOC_IO0 and other remappable functions."
      },
      {
        "number": "9",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply pin powering the I/O pins and internal regulator, rated 2 to 5.5 V (must be at least 2.5 V when ADC or PD is used)."
      },
      {
        "number": "10",
        "name": "PA9",
        "type": "bidirectional",
        "description": "General-purpose I/O, default function MISO_ (SPI MISO) with alternates RX4_1, CTS1_2, MOSI_1, MISO_2, T2BK_1 and T2BK_3 selected through AFIO."
      },
      {
        "number": "11",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function, default function SDA (I2C data, not applicable to lots whose 5th-from-last lot digit is 0) with alternates C2P1 and remappable SCK_2 and RX1_1."
      },
      {
        "number": "12",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O, default function SCL (I2C clock, not applicable to lots whose 5th-from-last lot digit is 0) with alternates TX1_1, MOSI_2 and RX4_3."
      },
      {
        "number": "13",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function (A13), default function C1N0/C2N1/C3N1 with alternates RTS2_3 and T1C4_3; on this TSSOP20 package it can also be used as the RST function."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A0), default function T2C1, with alternates CTS2, C1P1 and remappable T2C1_2."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A1), default function RTS2, with alternates T2C2, C1O, O1N2 and O2N2 and remappable CTS2_1 and T2C2_2."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A2), default function TX2, with alternates T2C3, O2O1, C3N0 and remappable RTS2_1, T2ET_5, T2C3_1 and T2ET_6."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A3, not applicable to lots whose 5th-from-last lot digit is 0), default function RX2, with alternates T2C4, O1O0 and remappable T3C1_3, T2C4_1 and CTS3_2."
      },
      {
        "number": "18",
        "name": "PC19",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog-capable function, default function DCK (SWCLK serial debug clock) with alternates PIOC_IO1 and C1P0, plus remappable T2C1_5, T3C1_2, SCL_3, SDA_5, RX3_1, RX4_4 and T2C1_6."
      },
      {
        "number": "19",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A4), default function CS (SPI NSS), with alternates CK2 and O2O0 and remappable RTS3_2 and T3C2_3."
      },
      {
        "number": "20",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O with analog input capability (A5), default function SCK (SPI clock), with alternates O2N0 and remappable TX4_1 and CTS4_4."
      }
    ],
    "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 lists these physical pins with two bonded names: pin 2 is shared by PA7 and PB0, pin 5; Table 2-2 gives PB7 and PC3 an RST function. For PB7 this applies only to the TSSOP20 CH32X033 (note; ADC channels 3, 7, 11, 15 and the I2C function do not apply to lots whose 5th-from-last lot-number d"
        ],
        "pages_sent": 32,
        "cost_usd": 0.1643,
        "at": "2026-10-17T12:48:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8786658251033329664",
        "pages": 41,
        "sha256": "147f0d22d0738729",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "ch32x033f8p6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch32x033f8p6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          1.2
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4c411427a05e39289160587fbbf14a1bcc71130f5aa7798b1ca91535eed9ea1c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WCH",
      "Package": "TSSOP-20",
      "Category": "Others",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "147f0d22d0738729f7b5288e933806df3b31c624ff0ea157c2bb709cd3841498",
      "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": "工作时的环境温度",
          "source_page": 23,
          "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": "存储时的环境温度",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "VDD 外部主供电引脚电压",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "外部主供电引脚 VDD 上的电压",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "I/O 引脚电压",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "I/O 引脚上的电压; printed max is VDD+0.3",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "主供电引脚各 VDD 之间的电压差",
          "symbol": "|ΔVDD_x|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "主供电引脚各 VDD 之间的电压差",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "公共地引脚各 GND 之间的电压差",
          "symbol": "|ΔGND_x|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "公共地引脚各 GND 之间的电压差",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "所有 VDD 主供电引脚合计总电流",
          "symbol": "IVDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "所有 VDD 主供电引脚的合计总电流",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "所有 GND 公共地引脚合计总电流",
          "symbol": "IGND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "所有 GND 公共地引脚的合计总电流",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "任意 I/O 引脚 sink 电流",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "任意 I/O 引脚上的 sink 电流",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "任意 I/O 引脚 source 电流",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "任意 I/O 引脚上的 source 电流",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "内部系统总线频率或微处理器主频",
          "symbol": "FHCLK 或 FSYS",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 48,
          "conditions": "内部系统总线频率或微处理器主频",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "工作电源电压 (额定 5V), 未用 USB 和 PD 功能",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "未用 USB 和 PD 功能",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "工作电源电压 (额定 5V), 使用 USB 或 PD 功能",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.3,
          "conditions": "使用 USB 或 PD 功能",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "工作电源电压, 未使用 ADC 功能",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "未使用 ADC 功能",
          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "工作电源电压, 使用 ADC 功能",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 5.5,
          "conditions": "使用 ADC 功能",
          "source_page": 24,
          "source": "datasheet"
        },
        {
          "name": "VDD 上升速率",
          "symbol": "tVDD",
          "kind": "timing",
          "unit": "us/V",
          "min": 0.1,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 24,
          "source": "datasheet"
        },
        {
          "name": "VDD 下降速率",
          "symbol": "tVDD",
          "kind": "timing",
          "unit": "us/V",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 24,
          "source": "datasheet"
        },
        {
          "name": "复位定时时间 (上电复位)",
          "symbol": "tRSTTEMPO",
          "kind": "timing",
          "unit": "ms",
          "min": 4,
          "typ": 17,
          "max": 24,
          "conditions": "上电复位",
          "source_page": 24,
          "source": "datasheet"
        },
        {
          "name": "复位定时时间 (其他复位)",
          "symbol": "tRSTTEMPO",
          "kind": "timing",
          "unit": "us",
          "min": 6,
          "typ": 9,
          "max": 20,
          "conditions": "其他复位",
          "source_page": 24,
          "source": "datasheet"
        },
        {
          "name": "内置参考电压",
          "symbol": "VREFINT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.16,
          "typ": 1.2,
          "max": 1.24,
          "conditions": "TA = -40℃～85℃",
          "source_page": 24,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "CH32X033F8P6 (WCH) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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