STC8C2K64S4-36I-LQFP44

{
  "schema_version": 1,
  "type": "component",
  "slug": "stc8c2k64s4-36i-lqfp44",
  "title": "STC8C2K64S4-36I-LQFP44",
  "brief": "STC Micro Microcontroller Units (MCUs/MPUs/SOCs), LQFP-44(10x10). 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",
    "stc8c2k64s4-36i-lqfp44",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STC8C2K64S4-36I-LQFP44",
    "manufacturer": "STC Micro",
    "package": "LQFP-44(10x10)",
    "pin_count": 44,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/73d58be2ee34ecb6692592c0f184ce32.pdf",
    "parts": {
      "symbol": "stc8c2k64s4-36i-lqfp44.kicad_sym",
      "footprint": "stc8c2k64s4-36i-lqfp44.kicad_mod",
      "model_3d": "stc8c2k64s4-36i-lqfp44-hero.glb",
      "model_3d_plain": "stc8c2k64s4-36i-lqfp44-etched.glb",
      "model_3d_step": "stc8c2k64s4-36i-lqfp44-etched.step",
      "model_3d_step_plain": "stc8c2k64s4-36i-lqfp44.step",
      "lbr": "stc8c2k64s4-36i-lqfp44.lbr"
    },
    "distributor_links": {
      "lcsc": "C3013128"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:30:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Standard I/O port P1.0, also RxD2 (UART2 receive pin); input-only function when used as UART receive, port is high-impedance input after power-on."
      },
      {
        "number": "2",
        "name": "P1.1",
        "type": "bidirectional",
        "description": "Standard I/O port P1.1, also TxD2 (UART2 transmit output)."
      },
      {
        "number": "3",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.2, also SS (SPI slave select), T2 (Timer 2 external clock input)."
      },
      {
        "number": "4",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Standard I/O port P1.3, also MOSI (SPI master out/slave in) and T2CLKO (Timer 2 clock output)."
      },
      {
        "number": "5",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Standard I/O port P1.4, also MISO (SPI master in/slave out) and I2C data line SDA."
      },
      {
        "number": "6",
        "name": "P4.4",
        "type": "bidirectional",
        "description": "Standard I/O port P4.4, also RD (external bus read strobe) and TxD_4 (UART1 transmit alternate)."
      },
      {
        "number": "7",
        "name": "P1.5",
        "type": "bidirectional",
        "description": "Standard I/O port P1.5, also SPI clock SCLK and I2C clock SCL."
      },
      {
        "number": "8",
        "name": "P1.6",
        "type": "bidirectional",
        "description": "Standard I/O port P1.6, also RxD_3 (UART1 receive alternate), XTALO (external crystal output) and MCLKO_2 (main clock output); high-impedance input when used as external clock input pin."
      },
      {
        "number": "9",
        "name": "P1.7",
        "type": "bidirectional",
        "description": "Standard I/O port P1.7, also TxD_3 (UART1 transmit alternate) and XTALI (external crystal/clock input)."
      },
      {
        "number": "10",
        "name": "P4.5",
        "type": "bidirectional",
        "description": "Standard I/O port P4.5 with full I/O function, configurable in four modes."
      },
      {
        "number": "11",
        "name": "P4.6",
        "type": "bidirectional",
        "description": "Standard I/O port P4.6 with full I/O function, configurable in four modes."
      },
      {
        "number": "12",
        "name": "P4.7",
        "type": "bidirectional",
        "description": "Standard I/O port P4.7 with full I/O function, configurable in four modes."
      },
      {
        "number": "13",
        "name": "P5.4",
        "type": "bidirectional",
        "description": "Standard I/O port P5.4, also RST (active-low reset input when configured as reset pin) and MCLKO (main clock output); powers up with internal 4K pull-up active for about 6.5 ms."
      },
      {
        "number": "14",
        "name": "Vcc",
        "type": "power_in",
        "description": "Power supply pin; operating voltage 1.9V to 5.5V."
      },
      {
        "number": "15",
        "name": "P5.5",
        "type": "bidirectional",
        "description": "Standard I/O port P5.5."
      },
      {
        "number": "16",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "17",
        "name": "P4.0",
        "type": "bidirectional",
        "description": "Standard I/O port P4.0, also WR_3 (external bus write strobe alternate) and RxD2_2 (UART2 receive alternate)."
      },
      {
        "number": "18",
        "name": "P3.0",
        "type": "bidirectional",
        "description": "Standard I/O port P3.0, also RxD (UART1 receive) and INT4 (external interrupt 4); weak pull-up after power-on and used with P3.1 for USB download mode detection."
      },
      {
        "number": "19",
        "name": "P3.1",
        "type": "bidirectional",
        "description": "Standard I/O port P3.1, also TxD (UART1 transmit); weak pull-up after power-on, must not be held low together with P3.0 and P3.2 at power-up unless USB ISP is intended."
      },
      {
        "number": "20",
        "name": "P3.2",
        "type": "bidirectional",
        "description": "Standard I/O port P3.2, also INT0 (external interrupt 0), SCLK_4 and I2C clock SCL_4; high-impedance input after power-on."
      },
      {
        "number": "21",
        "name": "P3.3",
        "type": "bidirectional",
        "description": "Standard I/O port P3.3, also INT1 (external interrupt 1), MISO_4 and I2C data SDA_4."
      },
      {
        "number": "22",
        "name": "P3.4",
        "type": "bidirectional",
        "description": "Standard I/O port P3.4, also T0 (Timer 0 external clock input), T1CLKO, MOSI_4 and CMPO (comparator output)."
      },
      {
        "number": "23",
        "name": "P3.5",
        "type": "bidirectional",
        "description": "Standard I/O port P3.5, also T1 (Timer 1 external clock input), T0CLKO and SS_4 (SPI slave select)."
      },
      {
        "number": "24",
        "name": "P3.6",
        "type": "bidirectional",
        "description": "Standard I/O port P3.6, also INT2 (external interrupt 2), WR_2 (external bus write), RxD_2 and CMP- (comparator negative input)."
      },
      {
        "number": "25",
        "name": "P4.1",
        "type": "bidirectional",
        "description": "Standard I/O port P4.1, also ALE (address latch enable) and CMPO_2 (comparator output alternate)."
      },
      {
        "number": "26",
        "name": "P2.0",
        "type": "bidirectional",
        "description": "Standard I/O port P2.0, also A8 (external bus address bit 8)."
      },
      {
        "number": "27",
        "name": "P4.2",
        "type": "bidirectional",
        "description": "Standard I/O port P4.2, also RD_3 (external bus read alternate) and TxD2_2 (UART2 transmit alternate)."
      },
      {
        "number": "28",
        "name": "P2.1",
        "type": "bidirectional",
        "description": "Standard I/O port P2.1, also A9 (external bus address bit 9)."
      },
      {
        "number": "29",
        "name": "P2.2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.2, also A10 (external bus address bit 10) and SS_2 (SPI slave select alternate)."
      },
      {
        "number": "30",
        "name": "P2.3",
        "type": "bidirectional",
        "description": "Standard I/O port P2.3, also A11 (external bus address bit 11) and MOSI_2 (SPI alternate)."
      },
      {
        "number": "31",
        "name": "P2.4",
        "type": "bidirectional",
        "description": "Standard I/O port P2.4, also A12 (external bus address bit 12), MISO_2 and I2C data SDA_2."
      },
      {
        "number": "32",
        "name": "P2.5",
        "type": "bidirectional",
        "description": "Standard I/O port P2.5, also A13 (external bus address bit 13), SCLK_2 and I2C clock SCL_2."
      },
      {
        "number": "33",
        "name": "P2.6",
        "type": "bidirectional",
        "description": "Standard I/O port P2.6, also A14 (external bus address bit 14)."
      },
      {
        "number": "34",
        "name": "P2.7",
        "type": "bidirectional",
        "description": "Standard I/O port P2.7, also A15 (external bus address bit 15)."
      },
      {
        "number": "35",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Standard I/O port P0.0, also AD0 (multiplexed address/data bus bit 0) and RxD3 (UART3 receive)."
      },
      {
        "number": "36",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Standard I/O port P0.1, also AD1 (multiplexed address/data bus bit 1) and TxD3 (UART3 transmit)."
      },
      {
        "number": "37",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Standard I/O port P0.2, also AD2 (multiplexed address/data bus bit 2) and RxD4 (UART4 receive)."
      },
      {
        "number": "38",
        "name": "P4.3",
        "type": "bidirectional",
        "description": "Standard I/O port P4.3, also WR (external bus write strobe) and RxD_4 (UART1 receive alternate)."
      },
      {
        "number": "39",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Standard I/O port P0.3, also AD3 (multiplexed address/data bus bit 3) and TxD4 (UART4 transmit)."
      },
      {
        "number": "40",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Standard I/O port P0.4, also AD4 (multiplexed address/data bus bit 4) and T3 (Timer 3 external clock input)."
      },
      {
        "number": "41",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Standard I/O port P0.5, also AD5 (multiplexed address/data bus bit 5) and T3CLKO (Timer 3 clock output)."
      },
      {
        "number": "42",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Standard I/O port P0.6, also AD6 (multiplexed address/data bus bit 6) and T4 (Timer 4 external clock input)."
      },
      {
        "number": "43",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Standard I/O port P0.7, also AD7 (multiplexed address/data bus bit 7) and T4CLKO (Timer 4 clock output)."
      },
      {
        "number": "44",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Standard I/O port P1.0, also RxD2 (UART2 receive pin)."
      }
    ],
    "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": [
          "1/44 pins cited to the wrong page (name found elsewhere): ['14:Vcc@p24']"
        ],
        "pages_sent": 181,
        "cost_usd": 0.0108,
        "at": "2026-10-27T00:29:09"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/73d58be2ee34ecb6692592c0f184ce32.pdf",
        "pages": 956,
        "sha256": "f8fa5bab02998432",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 44,
        "described": 44,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "up": "Z",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "81aae6270b5c742bed79a8a35e9adf7fbed97c42e341e6b25ab20c1783b93b5d",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "92c912bc1867430d8b2cced2bca5fa86d2552dc02e9d9de6fa6d2650d0683fe3",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "STC Micro",
      "Package": "LQFP-44(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "44"
    },
    "appearance": {
      "housing": {
        "quote": "Accumulator contents and the contents of a sixteen-bit base register, which may be either the Data Pointer or the PC. In the latter case, the PC is incremented to the address of the following",
        "page": 419,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "f8fa5bab02998432942309872fdf828c68941a093f210adf4d7877010a37a8d3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f8fa5bab02998432942309872fdf828c68941a093f210adf4d7877010a37a8d3",
      "rows": [
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 786,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 786,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 1.9,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 786,
          "source": "datasheet"
        },
        {
          "name": "VDD to ground voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 786,
          "source": "datasheet"
        },
        {
          "name": "I/O port to ground voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "max VDD+0.3",
          "source_page": 786,
          "source": "datasheet"
        },
        {
          "name": "Logic 1 to 0 transition current",
          "symbol": "ITL",
          "kind": "electrical",
          "unit": "uA",
          "min": 100,
          "typ": 270,
          "max": 600,
          "conditions": "端口电压 2.0V",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "I/O pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 5.8,
          "typ": 5.9,
          "max": 6,
          "conditions": "",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (Schmitt trigger on)",
          "symbol": "VIL1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.99,
          "conditions": "打开施密特触发",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (Schmitt trigger off)",
          "symbol": "VIL1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.07,
          "conditions": "关闭施密特触发",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, normal I/O (Schmitt trigger on)",
          "symbol": "VIH1",
          "kind": "electrical",
          "unit": "V",
          "min": 1.18,
          "typ": null,
          "max": null,
          "conditions": "打开施密特触发",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, normal I/O (Schmitt trigger off)",
          "symbol": "VIH1",
          "kind": "electrical",
          "unit": "V",
          "min": 1.09,
          "typ": null,
          "max": null,
          "conditions": "关闭施密特触发",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Input high voltage, reset pin",
          "symbol": "VIH2",
          "kind": "electrical",
          "unit": "V",
          "min": 1.18,
          "typ": null,
          "max": 0.99,
          "conditions": "",
          "source_page": 787,
          "source": "datasheet"
        },
        {
          "name": "Logic 0 input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "端口电压 0V",
          "source_page": 787,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "STC8C2K64S4-36I-LQFP44 (STC Micro) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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