CH32X035C8T6

{
  "slug": "ch32x035c8t6",
  "version": "0.1.0",
  "type": "component",
  "description": "WCH(Jiangsu Qin Heng) Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "ch32x035c8t6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ch32x035c8t6.kicad_sym",
    "ch32x035c8t6.kicad_mod",
    "ch32x035c8t6.glb",
    "ch32x035c8t6.step",
    "ch32x035c8t6.lbr",
    "docs/hero.png",
    "docs/ch32x035c8t6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ch32x035c8t6-hero.glb",
    "ch32x035c8t6-hero.overlay.json",
    "ch32x035c8t6-etched.glb"
  ],
  "component": {
    "mpn": "CH32X035C8T6",
    "manufacturer": "WCH(Jiangsu Qin Heng)",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2de8c5fa0d5ee2f0b9ab06a046df6bd7.pdf",
    "parts": {
      "symbol": "ch32x035c8t6.kicad_sym",
      "footprint": "ch32x035c8t6.kicad_mod",
      "model_3d": "ch32x035c8t6-hero.glb",
      "model_3d_plain": "ch32x035c8t6-etched.glb",
      "model_3d_step": "ch32x035c8t6-etched.step",
      "model_3d_step_plain": "ch32x035c8t6.step",
      "lbr": "ch32x035c8t6.lbr"
    },
    "distributor_links": {
      "lcsc": "C29779902"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:31:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA15",
        "type": "bidirectional",
        "description": "General-purpose I/O PA15 with controllable pull-up and pull-down, and remapped USART2 TX alternates TX2_2/TX2_4."
      },
      {
        "number": "2",
        "name": "PA16",
        "type": "bidirectional",
        "description": "General-purpose I/O PA16 with controllable pull-up, and remapped USART2 RX alternates RX2_2/RX2_4."
      },
      {
        "number": "3",
        "name": "PA17",
        "type": "bidirectional",
        "description": "General-purpose I/O PA17 with controllable pull-up, and remapped USART2 CTS alternates CTS2_2/CTS2_4."
      },
      {
        "number": "4",
        "name": "PA18",
        "type": "bidirectional",
        "description": "General-purpose I/O PA18 with controllable pull-up, with TIM2 external trigger and remapped USART3 TX alternates T2ET_1/T2ET_3/TX3_2."
      },
      {
        "number": "5",
        "name": "PA19",
        "type": "bidirectional",
        "description": "General-purpose I/O PA19 with controllable pull-up, with TIM2 external trigger T2ET and remapped USART2 RX alternates RX2_1/T2ET_2."
      },
      {
        "number": "6",
        "name": "PA20",
        "type": "bidirectional",
        "description": "General-purpose I/O PA20 with controllable pull-up, with TIM2 break input T2BK and remapped USART2 TX alternates TX2_1/T2BK_2."
      },
      {
        "number": "7",
        "name": "PA21",
        "type": "bidirectional",
        "description": "General-purpose I/O PA21 with controllable pull-up, with alternate functions RST, T2C1N and remapped RTS2_2; the datasheet lists RST as a function of this pin."
      },
      {
        "number": "8",
        "name": "PA22",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA22 with controllable pull-up, with TIM2 channel 2 complementary output T2C2N and CMP2 negative input C2N0."
      },
      {
        "number": "9",
        "name": "PA23",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA23 with controllable pull-up, with TIM2 channel 3 complementary output T2C3N and CMP1 negative input C1N1."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA0 with controllable pull-up and pull-down, with TIM2 channel 1 T2C1, USART2 CTS2, CMP1 positive input C1P1, and ADC channel A0."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA1 with controllable pull-up and pull-down, with TIM2 channel 2 T2C2, USART2 RTS2, OPA1 output C1O/O1N2 and ADC channel A1."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA2 with controllable pull-up and pull-down, with USART2 TX2, TIM2 channel 3 T2C3, OPA2 output O2O1 and ADC channel A2."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA3 with controllable pull-up and pull-down, with TIM2 channel 4 T2C4, USART2 RX2, OPA1 output O1O0 and ADC channel A3, which is not applicable to some lots."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA4 with controllable pull-up and pull-down, with SPI NSS CS, OPA2 output O2O0 and ADC channel A4."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA5 with controllable pull-up and pull-down, with SPI SCK, OPA2 output O2N0 and ADC channel A5."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA6 with controllable pull-up and pull-down, with SPI MISO, TIM3 channel 1 T3C1, OPA1 output O1N0 and ADC channel A6."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA7 with controllable pull-up and pull-down, with SPI MOSI, TIM3 channel 2 T3C2, OPA2 output O2P0 and ADC channel A7, which is not applicable to some lots."
      },
      {
        "number": "18",
        "name": "PC6",
        "type": "bidirectional",
        "description": "General-purpose I/O PC6 with TIM1 channel 2 complementary output T1C2N and remapped SPI MISO alternate MISO_3."
      },
      {
        "number": "19",
        "name": "PC7",
        "type": "bidirectional",
        "description": "General-purpose I/O PC7 with TIM1 channel 3 complementary output T1C3N and remapped SPI MOSI alternate MOSI_3, plus PIOC_IO0_1."
      },
      {
        "number": "20",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB0 with USART4 TX, OPA1 output O1P0 and ADC channel A8; PB0 is shorted with PA7 inside CH32X033F8P6 only."
      },
      {
        "number": "21",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB1 with USART4 RX, OPA2 output O2N1 and ADC channel A9; PB1 and PB5 are shorted inside CH32X035G8U6 and G8R6 only."
      },
      {
        "number": "22",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB2 with USART1 RX remap alternates RX1_3/CK4_2/CK4_5 and CMP2 output C2O."
      },
      {
        "number": "23",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB3 with USART3 TX, CMP3 output C3O and OPA2 output O2P1."
      },
      {
        "number": "24",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB4 with USART3 RX, TIM3 channel 1 remap T3C1_1 and OPA1 output O1P2."
      },
      {
        "number": "25",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB5 with USART3 CK, TIM1 break input T1BK, OPA1 output O1O1 and remapped TIM3 channel 2."
      },
      {
        "number": "26",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB6 with TIM1 channel 1 complementary output T1C1N, USART3 CTS and OPA1 output O1N1."
      },
      {
        "number": "27",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB7 with TIM1 channel 2 complementary output T1C2N, OPA2 output O2P2 and USART3 RTS."
      },
      {
        "number": "28",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Analog-capable I/O PB8 with TIM1 channel 3 complementary output T1C3N and OPA1 output O1P1."
      },
      {
        "number": "29",
        "name": "PB9",
        "type": "bidirectional",
        "description": "General-purpose I/O PB9 with TIM1 channel 1 T1C1, clock output MCO and USART4 TX remap TX4_3."
      },
      {
        "number": "30",
        "name": "PB10",
        "type": "bidirectional",
        "description": "General-purpose I/O PB10 with USART1 TX and TIM1 channel 2 T1C2."
      },
      {
        "number": "31",
        "name": "PB11",
        "type": "bidirectional",
        "description": "General-purpose I/O PB11 with TIM1 channel 3 T1C3 and USART1 RX."
      },
      {
        "number": "32",
        "name": "PC16",
        "type": "bidirectional",
        "description": "Analog-capable I/O PC16 with USB D- (UDM), TIM1 channel 4 T1C4, USART4 TX/RX and I2C, and it requires an external pull-up when I2C is used; PC16 and PC11 are shorted inside the package."
      },
      {
        "number": "33",
        "name": "PC17",
        "type": "bidirectional",
        "description": "Analog-capable I/O PC17 with USB D+ (UDP), USART1 RTS and TIM1 external trigger; it is the BOOT detection pin, sampled high at power-up, and PC17 and PC10 are shorted inside the package."
      },
      {
        "number": "34",
        "name": "PC18",
        "type": "bidirectional",
        "description": "General-purpose I/O PC18 with SWDIO (DIO) and PIOC_IO0 as the default function, plus USART3 TX remap TX3_1 and TIM1 external trigger alternates."
      },
      {
        "number": "35",
        "name": "PB12",
        "type": "bidirectional",
        "description": "General-purpose I/O PB12 with TIM1 channel 4 T1C4_2, TIM2 complementary channel 2 T2C2N_5 and USART1 CK remap CK1_3."
      },
      {
        "number": "36",
        "name": "PB13",
        "type": "bidirectional",
        "description": "General-purpose I/O PB13 with USART4 TX remap TX4_4."
      },
      {
        "number": "37",
        "name": "PC19",
        "type": "bidirectional",
        "description": "Analog-capable I/O PC19 with SWCLK (DCK) and PIOC_IO1 as functions, plus TIM2 channel 1 T2C1_5, CMP1 output C1P0 and I2C alternates."
      },
      {
        "number": "38",
        "name": "PC14",
        "type": "bidirectional",
        "description": "Analog-capable I/O PC14 with CC1 (Type-C configuration channel 1), TIM1 channel 3 remap T1C3_4 and TIM2 channel 2 remap T2C2_6."
      },
      {
        "number": "39",
        "name": "PC15",
        "type": "bidirectional",
        "description": "Analog-capable I/O PC15 with CC2 (Type-C configuration channel 2), TIM2 channel 3 remap T2C3_6 and TIM1 external trigger T1ET_4."
      },
      {
        "number": "40",
        "name": "PA8",
        "type": "bidirectional",
        "description": "General-purpose I/O PA8 with USART4 RTS as default function, plus remapped USART1 RTS and SPI MISO alternates."
      },
      {
        "number": "41",
        "name": "PA9",
        "type": "bidirectional",
        "description": "General-purpose I/O PA9 with remapped SPI MOSI_1, USART4 RX_1, USART1 CTS_2 and TIM2 break input T2BK_1/T2BK_3."
      },
      {
        "number": "42",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O PA10 with I2C SCL (flagged for some lots) and remapped USART1 TX_1, SPI MOSI_2 and USART4 RX_3."
      },
      {
        "number": "43",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA11 with I2C SDA (flagged for some lots), CMP2 positive input C2P1, USART1 RX_1 and SPI SCK_2."
      },
      {
        "number": "44",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA12 with CMP2 positive input C2P0, SPI CS_2 and TIM2 channel 2 and channel 1N remaps."
      },
      {
        "number": "45",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA13 with CMP3 positive input C3P0, I2C SCL_1, USART4 RTS_3, USART1 CTS_3 and TIM2 remap alternates."
      },
      {
        "number": "46",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Analog-capable I/O PA14 with CMP3 positive input C3P1, I2C SDA_1, USART1 RTS_3, USART4 CTS_3 and TIM2 channel 3N remaps."
      },
      {
        "number": "47",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the device; the voltage difference between GND pins is limited to 20 mV."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply pin for I/O and the internal regulator, with an operating range of 2.0 to 5.5V and a minimum of 2.5V when ADC or PD is used."
      }
    ],
    "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 note 4 says PC10 and PC17 are shorted inside the package, and PC11 and PC16 are shorted, f; ADC channels 3, 7, 11 and 15, and the I2C function, do not apply to lots whose batch number has 0 as; PC17 is the BOOT detection pin; it is sampled high at power-up to enter the system boot area."
        ],
        "pages_sent": 32,
        "cost_usd": 0.0656,
        "at": "2026-10-27T00:30:21"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2de8c5fa0d5ee2f0b9ab06a046df6bd7.pdf",
        "pages": 41,
        "sha256": "147f0d22d0738729",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ch32x035c8t6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch32x035c8t6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1b2f262449111546170399dd6b63a4711f3914c06ee505b73623798f52e011b5",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}