CS32F031K8S6-RA

{
  "schema_version": 1,
  "type": "component",
  "slug": "cs32f031k8s6-ra",
  "title": "CS32F031K8S6-RA",
  "brief": "CHIPSEA Microcontrollers (MCU/MPU/SOC), LQFP-32(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",
    "cs32f031k8s6-ra",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CS32F031K8S6-RA",
    "manufacturer": "CHIPSEA",
    "package": "LQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/65bf599bfcb85cc793e71731d660e312.pdf",
    "parts": {
      "symbol": "cs32f031k8s6-ra.kicad_sym",
      "footprint": "cs32f031k8s6-ra.kicad_mod",
      "model_3d": "cs32f031k8s6-ra-hero.glb",
      "model_3d_plain": "cs32f031k8s6-ra-etched.glb",
      "model_3d_step": "cs32f031k8s6-ra-etched.step",
      "model_3d_step_plain": "cs32f031k8s6-ra.step",
      "lbr": "cs32f031k8s6-ra.lbr"
    },
    "distributor_links": {
      "lcsc": "C5361144"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:03:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin that powers the I/O, regulator and HXT module, with a voltage range of 2.0V to 5.5V."
      },
      {
        "number": "2",
        "name": "PF0/HXT_IN",
        "type": "bidirectional",
        "description": "GPIO PF0 that doubles as the HXT crystal oscillator input for a 4 to 32MHz crystal."
      },
      {
        "number": "3",
        "name": "PF1/HXT_OUT",
        "type": "bidirectional",
        "description": "GPIO PF1 that doubles as the HXT crystal oscillator output for a 4 to 32MHz crystal."
      },
      {
        "number": "4",
        "name": "NRST",
        "type": "input",
        "description": "Active-low reset input (also internal reset output); after POR reset release NRST must be held at least 9ms or FWDT may be enabled."
      },
      {
        "number": "5",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for ADC, HRC, HRC14, PLL, POR/PDR and LVD, ranging from VDD up to 5.5V and above 2.4V when the ADC is active."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO PA0 that can serve as ADC input channel ADC_IN0 or USART2_CTS, and as WKUP1 wake-up input."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO PA1 that can serve as ADC input channel ADC_IN1 or EVENTOUT, and as USART2_RTS."
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO PA2 that can serve as ADC input channel ADC_IN2, USART2_TX or TIM15_CH1."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO PA3 that can serve as ADC input channel ADC_IN3, USART2_RX or TIM15_CH2."
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO PA4 that can serve as ADC input channel ADC_IN4, SPI1_NSS, USART2_CK or TIM14_CH1."
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO PA5 that can serve as ADC input channel ADC_IN5 or SPI1_SCK."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO PA6 that can serve as ADC input channel ADC_IN6, SPI1_MISO, TIM3_CH1 or TIM1_BKIN."
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO PA7 that can serve as ADC input channel ADC_IN7, SPI1_MOSI, TIM3_CH2 or TIM14_CH1."
      },
      {
        "number": "14",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO PB0 that can serve as ADC input channel ADC_IN8, TIM3_CH3, TIM1_CH2N or EVENTOUT."
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO PB1 that can serve as ADC input channel ADC_IN9, TIM3_CH4, TIM14_CH1 or TIM1_CH3N."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground pin for the digital supply domain."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin that powers the I/O, regulator and HXT module, with a voltage range of 2.0V to 5.5V."
      },
      {
        "number": "18",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO PA8 that can serve as USART1_CK, TIM1_CH1, EVENTOUT or CKO clock output."
      },
      {
        "number": "19",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO PA9 that can serve as USART1_TX, TIM1_CH2, I2C1_SCL or CKO, and supports I2C Fast-mode Plus."
      },
      {
        "number": "20",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO PA10 that can serve as USART1_RX, TIM1_CH3, TIM17_BKIN or I2C1_SDA, and supports I2C Fast-mode Plus."
      },
      {
        "number": "21",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO PA11 that can serve as USART1_CTS, TIM1_CH4 or EVENTOUT."
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO PA12 that can serve as USART1_RTS, TIM1_ETR or EVENTOUT."
      },
      {
        "number": "23",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO PA13 that after reset is configured as SWDIO, with internal pull-up enabled on the SWDIO pin; it can also serve as IR_OUT."
      },
      {
        "number": "24",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO PA14 that after reset is configured as SWCLK, with internal pull-down enabled on the SWCLK pin; it can also serve as USART2_TX."
      },
      {
        "number": "25",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO PA15 with injection-current (anti back-feed) capability, that can serve as SPI1_NSS, USART2_RX or EVENTOUT."
      },
      {
        "number": "26",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO PB3 with injection-current (anti back-feed) capability, that can serve as SPI1_SCK or EVENTOUT."
      },
      {
        "number": "27",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO PB4 with injection-current (anti back-feed) capability, that can serve as SPI1_MISO, TIM3_CH1 or EVENTOUT."
      },
      {
        "number": "28",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO PB5 with injection-current (anti back-feed) capability, that can serve as SPI1_MOSI, I2C1_SMBA, TIM16_BKIN or TIM3_CH2."
      },
      {
        "number": "29",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO PB6 with injection-current (anti back-feed) capability, that can serve as I2C1_SCL, USART1_TX or TIM16_CH1N, and supports I2C Fast-mode Plus."
      },
      {
        "number": "30",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO PB7 with injection-current (anti back-feed) capability, that can serve as I2C1_SDA, USART1_RX or TIM17_CH1N, and supports I2C Fast-mode Plus."
      },
      {
        "number": "31",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot mode selection pin; a low level at BOOT0 selects boot from Flash, and the low-level input voltage limit is 0.3*VDD-0.3V."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground pin for the digital supply domain."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 32,
        "cost_usd": 0.003,
        "at": "2026-10-27T01:03:25"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/65bf599bfcb85cc793e71731d660e312.pdf",
        "pages": 48,
        "sha256": "dbe20e12d3c88e3c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cs32f031k8s6-ra.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": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cs32f031k8s6-ra-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": "6a748a0cb5d6259160c742f99dbefdb72aef28ab86d8b1df9ebc74cf049205b8",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "CHIPSEA",
      "Package": "LQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dbe20e12d3c88e3c643ae4424e8d4b173846c8956b81c1cd6bde497cb427eb29",
      "rows": [
        {
          "name": "VDD 和 GND 之间的电压",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDDA 和 GND 之间的电压",
          "symbol": "VDDA",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "VDD 和 VDDA 之间的电压",
          "symbol": "VDD-VDDA",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "I/O 管脚电压",
          "symbol": "Vi/o",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "存储温度",
          "symbol": "Tstorage",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "结温",
          "symbol": "Tjunction",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流入 VDD 电源线的总电流",
          "symbol": "Itotal-pwr",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流出 GND 接地线的总电流",
          "symbol": "Itotal-GND",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -120,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流入每个电源管脚的电流",
          "symbol": "Ipwr-pin",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流入每个地管脚的电流",
          "symbol": "IGND-pin",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流入所有 I/O 管脚的总电流",
          "symbol": "Itotal-sunk",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流出所有 I/O 管脚的总电流",
          "symbol": "Itotal-source",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -80,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流入任意一个 I/O 管脚的电流",
          "symbol": "Isunk-pin",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "流出任意一个 I/O 管脚的总电流",
          "symbol": "Isource-pin",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD 的工作电压范围",
          "symbol": "VVDD-range",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDDA 的工作电压范围",
          "symbol": "VVDDA-range",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "芯片环境温度",
          "symbol": "Trange",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "芯片结温范围",
          "symbol": "Tjunction-range",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "内部 AHB 时钟频率",
          "symbol": "fAHB-clock",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "内部 APB 时钟频率",
          "symbol": "fAPB-clock",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "I/O 输入电压范围",
          "symbol": "VIO-range",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD/VDDA 上升时间速率",
          "symbol": "Tsupply-rise",
          "kind": "recommended_operating",
          "unit": "μS/V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD/VDDA 下降时间速率",
          "symbol": "Tsupply-fall",
          "kind": "recommended_operating",
          "unit": "μS/V",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD 上电复位阈值",
          "symbol": "TVDD-POR",
          "kind": "electrical",
          "unit": "V",
          "min": 1.84,
          "typ": 1.92,
          "max": 2,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD 掉电复位阈值",
          "symbol": "TVDD-fall",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": 1.88,
          "max": 1.96,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDDA 掉电复位阈值",
          "symbol": "TVDDA-fall",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": 1.88,
          "max": 1.96,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VVDD-range≤5.5V 的复位持续时间",
          "symbol": "Treset-tempo",
          "kind": "timing",
          "unit": "mS",
          "min": null,
          "typ": 4.2,
          "max": 10,
          "conditions": "VVDD-range≤5.5V",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VVDD-range≤3.6V 的复位持续时间",
          "symbol": "Treset-tempo",
          "kind": "timing",
          "unit": "mS",
          "min": null,
          "typ": 4.2,
          "max": 7.5,
          "conditions": "VVDD-range≤3.6V",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 上升阈值电压 0",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.11,
          "typ": 2.18,
          "max": 2.25,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 下降阈值电压 0",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.01,
          "typ": 2.08,
          "max": 2.15,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 上升阈值电压 1",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.2,
          "typ": 2.28,
          "max": 2.36,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 下降阈值电压 1",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.1,
          "typ": 2.18,
          "max": 2.26,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 上升阈值电压 2",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.29,
          "typ": 2.38,
          "max": 2.47,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "LVD 下降阈值电压 2",
          "symbol": "VLVD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.19,
          "typ": 2.28,
          "max": 2.37,
          "conditions": "",
          "source_page": 28,
          "source": "datasheet"
        },
        {
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