CKS32F103RET6

{
  "slug": "cks32f103ret6",
  "version": "0.1.0",
  "type": "component",
  "description": "CKS Microcontroller Units (MCUs/MPUs/SOCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "cks32f103ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cks32f103ret6.kicad_sym",
    "cks32f103ret6.kicad_mod",
    "cks32f103ret6.glb",
    "cks32f103ret6.step",
    "cks32f103ret6.lbr",
    "docs/hero.png",
    "docs/cks32f103ret6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cks32f103ret6-hero.glb",
    "cks32f103ret6-hero.overlay.json",
    "cks32f103ret6-etched.glb"
  ],
  "component": {
    "mpn": "CKS32F103RET6",
    "manufacturer": "CKS",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/26cbd78dfa11fc26e9ece4deea73e4a6.pdf",
    "parts": {
      "symbol": "cks32f103ret6.kicad_sym",
      "footprint": "cks32f103ret6.kicad_mod",
      "model_3d": "cks32f103ret6-hero.glb",
      "model_3d_plain": "cks32f103ret6-etched.glb",
      "model_3d_step": "cks32f103ret6-etched.step",
      "model_3d_step_plain": "cks32f103ret6.step",
      "lbr": "cks32f103ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C3040888"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:24:12Z",
      "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 1.8 to 3.6 V for the RTC, external 32kHz oscillator and backup registers when VDD is off."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "PC13 I/O (alternate TAMPER-RTC), powered through a switch that sinks only 3mA, so as output limited to 2MHz, 30pF load, no LED drive."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "PC14 I/O (alternate OSC32_IN), powered through a 3mA-limited switch, output limited to 2MHz, 30pF."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "PC15 I/O (alternate OSC32_OUT), powered through a 3mA-limited switch, output limited to 2MHz, 30pF."
      },
      {
        "number": "5",
        "name": "OSC_IN",
        "type": "input",
        "description": "4-16MHz HSE oscillator input after reset; software can reconfigure as PD0 (no FSMC on this package)."
      },
      {
        "number": "6",
        "name": "OSC_OUT",
        "type": "output",
        "description": "4-16MHz HSE oscillator output after reset; software can reconfigure as PD1 (output mode only 50MHz)."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Device reset input/output with a non-disconnectable internal pull-up of 30-50kOhm, VIL max 0.8V."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC123_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC123_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC123_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC123_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground for ADC, DAC, reset block, RC oscillators and PLL; must be connected to VSS."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply of 2.0 to 3.6 V (2.4 V minimum when ADC/DAC used); must be connected to VDD; VREF+ is tied to it internally on this package."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "PA0 I/O with WKUP standby wake-up, USART2_CTS, ADC123_IN0, TIM2_CH1_ETR, TIM5_CH1, TIM8_ETR."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O with USART2_RTS, ADC123_IN1, TIM5_CH2, TIM2_CH2."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O with USART2_TX, TIM9_CH1, TIM5_CH3, ADC123_IN2, TIM2_CH3."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose I/O with USART2_RX, TIM9_CH2, TIM5_CH4, ADC123_IN3, TIM2_CH4."
      },
      {
        "number": "18",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "19",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Digital supply of 2.0 to 3.6 V for I/O and internal regulator."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O with SPI1_NSS, USART2_CK, DAC_OUT1, ADC12_IN4."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O with SPI1_SCK, DAC_OUT2, ADC12_IN5."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O with SPI1_MISO, TIM8_BKIN, ADC12_IN6, TIM13_CH1, TIM3_CH1, TIM1_BKIN."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O with SPI1_MOSI, TIM8_CH1N, ADC12_IN7, TIM14_CH1, TIM3_CH2, TIM1_CH1N."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC12_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "General-purpose I/O with alternate function ADC12_IN15."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O with ADC12_IN8, TIM3_CH3, TIM8_CH2N, TIM1_CH2N."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O with ADC12_IN9, TIM3_CH4, TIM8_CH3N, TIM1_CH3N."
      },
      {
        "number": "28",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "5V-tolerant I/O that also serves as BOOT1 boot mode selection."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2C2_SCL, USART3_TX, TIM2_CH3."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2C2_SDA, USART3_RX, TIM2_CH4."
      },
      {
        "number": "31",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "32",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Digital supply of 2.0 to 3.6 V for I/O and internal regulator."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with SPI2_MISO, USART3_RTS, TIM12_CH1, TIM1_CH2N."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with SPI2_MOSI, I2S2_SD, TIM12_CH2, TIM1_CH3N."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2S2_MCK, TIM8_CH1, USART6_TX, SDIO_D6, TIM3_CH1."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2S3_MCK, TIM8_CH2, USART6_RX, SDIO_D7, TIM3_CH2."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with TIM8_CH3, USART6_CK, SDIO_D0, TIM3_CH3."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with TIM8_CH4, SDIO_D1, TIM3_CH4."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART1_CK, TIM1_CH1, MCO."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART1_TX, TIM1_CH2."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART1_RX, TIM1_CH3."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART1_CTS, USBDM, CAN_RX, TIM1_CH4."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART1_RTS, USBDP, CAN_TX, TIM1_ETR."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5V-tolerant I/O, JTMS/SWDIO debug pin after reset."
      },
      {
        "number": "47",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "48",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Digital supply of 2.0 to 3.6 V for I/O and internal regulator."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5V-tolerant I/O, JTCK/SWCLK debug pin after reset."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5V-tolerant I/O, JTDI after reset, with SPI3_NSS, I2S3_WS, TIM2_CH1_ETR, SPI1_NSS."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART4_TX, SDIO_D2, USART3_TX."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART4_RX, SDIO_D3, USART3_RX."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with USART5_TX, SDIO_CK, USART3_CK."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with TIM3_ETR, USART5_RX, SDIO_CMD."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5V-tolerant I/O, JTDO after reset, with SPI3_SCK, I2S3_CK, TRACESWO, TIM2_CH2, SPI1_SCK."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5V-tolerant I/O, NJTRST after reset, with SPI3_MISO, TIM3_CH1, SPI1_MISO."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "I/O (not marked 5V-tolerant) with I2C1_SMBA, SPI3_MOSI, I2S3_SD, TIM3_CH2, SPI1_MOSI."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2C1_SCL, TIM4_CH1, USART1_TX."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with I2C1_SDA, TIM4_CH2, USART1_RX (FSMC_NADV not available on this package)."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection input."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with TIM4_CH3, TIM10_CH1, SDIO_D4, I2C1_SCL, CAN_RX."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5V-tolerant I/O with TIM4_CH4, TIM11_CH1, SDIO_D5, I2C1_SDA, CAN_TX."
      },
      {
        "number": "63",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "64",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Digital supply of 2.0 to 3.6 V for I/O and internal regulator."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: LQFP64 pinout figure (Figure 5, page 21) is an image with no text; pin assignment was taken from the; Pin types are inferred from the table's type column (I, O, S, I/O); pins 5/6 are shown as OSC_IN/OSC; Table 3 footnotes say LQFP48/64 have no FSMC; FSMC alternate functions were omitted for this package"
        ],
        "pages_sent": 71,
        "cost_usd": 0.6005,
        "at": "2026-10-23T03:23:40"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/26cbd78dfa11fc26e9ece4deea73e4a6.pdf",
        "pages": 98,
        "sha256": "3b7626fd9350b985",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cks32f103ret6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cks32f103ret6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5b44c902a4f45142d84fb8d97c4bb33443d38b6593e5171b9417b4ae0fad9ee3",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}