CKS32F031C6T6

{
  "schema_version": 1,
  "type": "component",
  "slug": "cks32f031c6t6",
  "title": "CKS32F031C6T6",
  "brief": "CKS 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",
    "cks32f031c6t6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CKS32F031C6T6",
    "manufacturer": "CKS",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757207398266486784",
    "parts": {
      "symbol": "cks32f031c6t6.kicad_sym",
      "footprint": "cks32f031c6t6.kicad_mod",
      "model_3d": "cks32f031c6t6-hero.glb",
      "model_3d_plain": "cks32f031c6t6-etched.glb",
      "model_3d_step": "cks32f031c6t6-etched.step",
      "model_3d_step_plain": "cks32f031c6t6.step",
      "lbr": "cks32f031c6t6.lbr"
    },
    "distributor_links": {
      "lcsc": "C556569"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:37:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply of 1.71 to 3.6 V that powers the RTC, the external 32 kHz oscillator and the backup registers when VDD is absent."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "TC (standard 3.3 V) I/O whose supply passes through a power switch that sinks at most 3 mA, so GPIO output is limited to 2 MHz at 30 pF and it cannot source current such as LED drive; also RTC_TAMP1, RTC_TS, RTC_OUT and WKUP2."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "TC I/O (PC14) that doubles as the 32.768 kHz oscillator input OSC32_IN, with the same power-switch and output limits as PC13."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "TC I/O (PC15) that doubles as the 32.768 kHz oscillator output OSC32_OUT, with the same power-switch and output limits as PC13."
      },
      {
        "number": "5",
        "name": "PF0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O (PF0) that doubles as the HSE oscillator input OSC_IN for a 4 to 32 MHz crystal or an external clock of 8 to 32 MHz in bypass mode."
      },
      {
        "number": "6",
        "name": "PF1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O (PF1) that doubles as the HSE oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low device reset input and internal reset output with an internal pull-up of 25 to 55 kΩ (40 kΩ typical), with VIL(NRST) max of 0.3VDD+0.07 V."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground; per footnote 3 the chip's VSSA pad is connected internally to the VSS pin."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for the ADC, reset block, RC oscillators and PLL, which must be greater than or equal to VDD and 2.4 to 3.6 V when the ADC is used."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions USART1_CTS and TIM2_CH1_ETR; additional functions ADC_IN0, RTC_TAMP2 and WKUP1."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions USART1_RTS, TIM2_CH2 and EVENTOUT; additional function ADC_IN1."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions USART1_TX and TIM2_CH3; additional function ADC_IN2."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions USART1_RX and TIM2_CH4; additional function ADC_IN3."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions SPI1_NSS, I2S1_WS, USART1_CK and TIM14_CH1; additional function ADC_IN4."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions SPI1_SCK, I2S1_CK and TIM2_CH1_ETR; additional function ADC_IN5."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1 and EVENTOUT; additional function ADC_IN6."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1 and EVENTOUT; additional function ADC_IN7."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions TIM3_CH3, TIM1_CH2N and EVENTOUT; additional function ADC_IN8."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "TTa 3.3 V tolerant I/O connected directly to the ADC; alternate functions TIM3_CH4, TIM14_CH1 and TIM1_CH3N; additional function ADC_IN9."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O with no alternate function listed in the pin definition table."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions I2C1_SCL and TIM2_CH3."
      },
      {
        "number": "22",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions TIM2_CH4, EVENTOUT and I2C1_SDA."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital and I/O supply, 2.0 to 3.6 V per section 3.5.1 (Table 17 lists a 2.4 V minimum)."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_NSS, TIM1_BKIN and EVENTOUT."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_SCK and TIM1_CH1N."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_MISO and TIM1_CH2N."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_MOSI, TIM1_CH3N and RTC_REFIN."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions USART1_CK, TIM1_CH1, EVENTOUT and MCO."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions USART1_TX, TIM1_CH2 and I2C1_SCL."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions USART1_RX, TIM1_CH3, TIM17_BKIN and I2C1_SDA."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions USART1_CTS, TIM1_CH4 and EVENTOUT."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions USART1_RTS, TIM1_ETR and EVENTOUT."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O that after reset is SWDIO with internal pull-up enabled; alternate function IR_OUT."
      },
      {
        "number": "35",
        "name": "PF6",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate function I2C1_SCL."
      },
      {
        "number": "36",
        "name": "PF7",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate function I2C1_SDA."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O that after reset is SWCLK with internal pull-down enabled; alternate function USART1_TX."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_NSS, I2S1_WS, USART1_RX, TIM2_CH_ETR and EVENTOUT."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_SCK, I2S1_CK, EVENTOUT and TIM2_CH2."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_MISO, I2S1_MCK, TIM3_CH1 and EVENTOUT."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant FT I/O; alternate functions SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN and TIM3_CH2."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions I2C1_SCL, USART1_TX and TIM16_CH1N."
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions I2C1_SDA, USART1_RX and TIM17_CH1N."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot memory selection input, input-only, which must be pulled high or low externally and must not be left floating; operating range 0 to 5.5 V."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions I2C1_SCL and TIM16_CH1."
      },
      {
        "number": "46",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant FTf I/O with FM+ capability; alternate functions I2C1_SDA, IR_OUT, TIM17_CH1 and EVENTOUT."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital and I/O supply, 2.0 to 3.6 V per section 3.5.1."
      }
    ],
    "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 10 rows are misaligned in the text extraction. For pins 21, 22, 35, 36, 45, 46 and the other r; Footnote 3 says VSSA is not in the package pinout and is bonded to VSS, yet Table 10 assigns pin 8 t; VDD range conflict: section 3.5.1 and the headline state 2.0 to 3.6 V, while Table 17 gives a 2.4 V "
        ],
        "pages_sent": 76,
        "cost_usd": 0.2899,
        "at": "2026-10-19T06:35:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757207398266486784",
        "pages": 92,
        "sha256": "2baab798b6caacdc",
        "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": [
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        "file": "cks32f031c6t6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          9,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cks32f031c6t6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eeb6a4e8fe1bffb4dbc295bf49856dd6304ce6c67804065a59630dca87970c9b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "CKS",
      "Package": "LQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "cks32f031c6t6"
  ],
  "discovery_pitch": "CKS32F031C6T6 (CKS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}