component
CH32X035C8T6
Public Made by Adomby adom
WCH(Jiangsu Qin Heng) Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ch32x035c8t6",
"title": "CH32X035C8T6",
"brief": "WCH(Jiangsu Qin Heng) Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). 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",
"embedded processors & controllers",
"ch32x035c8t6",
"factory-2.0.0",
"extractor-text"
],
"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,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 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,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1b2f262449111546170399dd6b63a4711f3914c06ee505b73623798f52e011b5",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "WCH(Jiangsu Qin Heng)",
"Package": "LQFP-48(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "147f0d22d0738729f7b5288e933806df3b31c624ff0ea157c2bb709cd3841498",
"rows": [
{
"name": "Ambient temperature, operating",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "℃",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Ambient temperature, storage",
"symbol": "TS",
"kind": "absolute_maximum",
"unit": "℃",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Supply voltage on VDD pin",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "I/O pin voltage",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "max VDD+0.3 V",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Voltage difference between VDD pins",
"symbol": "|ΔVDD_x|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Voltage difference between GND pins",
"symbol": "|ΔGND_x|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Total current through all VDD pins",
"symbol": "IVDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Total current through all GND pins",
"symbol": "IGND",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Sink current per I/O pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 40,
"conditions": "any I/O pin sink current",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Source current per I/O pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 30,
"conditions": "any I/O pin source current",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Internal system bus / CPU clock frequency",
"symbol": "FHCLK or FSYS",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 48,
"conditions": "",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Supply voltage VDD",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2,
"typ": null,
"max": 5.5,
"conditions": "USB and PD functions not used",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Supply voltage VDD",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 5.3,
"conditions": "USB or PD functions used",
"source_page": 23,
"source": "datasheet"
},
{
"name": "Supply voltage VDD",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 5.5,
"conditions": "ADC function used",
"source_page": 24,
"source": "datasheet"
},
{
"name": "VDD rise rate",
"symbol": "tVDD",
"kind": "timing",
"unit": "us/V",
"min": 0.1,
"typ": null,
"max": null,
"conditions": "VDD rising",
"source_page": 24,
"source": "datasheet"
},
{
"name": "VDD fall rate",
"symbol": "tVDD",
"kind": "timing",
"unit": "us/V",
"min": 10,
"typ": null,
"max": null,
"conditions": "VDD falling",
"source_page": 24,
"source": "datasheet"
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