STC8H2K08U-45I-SOP16

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  "type": "component",
  "slug": "stc8h2k08u-45i-sop16",
  "title": "STC8H2K08U-45I-SOP16",
  "brief": "STC Micro Microcontrollers (MCU/MPU/SOC), SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "STC8H2K08U-45I-SOP16",
    "manufacturer": "STC Micro",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756362683467599872",
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    "distributor_links": {
      "lcsc": "C20416473"
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      "checked_at": "2026-10-18T20:25:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "P1.0/RxD2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.0 that doubles as the UART2 receive pin (RxD2); I/O pins power up in high-impedance input state and must have their mode set before use."
      },
      {
        "number": "2",
        "name": "P1.1/TxD2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.1 that doubles as the UART2 transmit pin (TxD2); I/O pins power up in high-impedance input state and must have their mode set before use."
      },
      {
        "number": "3",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Standard I/O port P1.3 with no other function labelled on this package pinout."
      },
      {
        "number": "4",
        "name": "UCap",
        "type": "passive",
        "description": "UCap pin of the USB part, shown in the reference circuit with a 0.1uF capacitor to ground."
      },
      {
        "number": "5",
        "name": "P5.4/nRST",
        "type": "bidirectional",
        "description": "P5.4 I/O that can be configured as the active-low reset input (nRST); it is an I/O by default and the reset function takes effect after an ISP setting and a power cycle."
      },
      {
        "number": "6",
        "name": "Vcc",
        "type": "power_in",
        "description": "Positive supply pin, to be decoupled to Gnd with a 10uF or larger capacitor plus 0.1uF placed close to the pin."
      },
      {
        "number": "7",
        "name": "VRef+",
        "type": "power_in",
        "description": "ADC external reference voltage input; must be tied to an external reference of 2.4V to MCU-VCC, since leaving it floating causes leakage current."
      },
      {
        "number": "8",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "9",
        "name": "D-/P3.0",
        "type": "bidirectional",
        "description": "USB D- line shared with P3.0 (RxD), also used for ISP download and debug; powers up as a quasi-bidirectional pin with weak pull-up."
      },
      {
        "number": "10",
        "name": "D+/P3.1",
        "type": "bidirectional",
        "description": "USB D+ line shared with P3.1 (TxD), also used for ISP download and debug; powers up as a quasi-bidirectional pin with weak pull-up."
      },
      {
        "number": "11",
        "name": "P3.2",
        "type": "bidirectional",
        "description": "Standard I/O port P3.2 (INT0, SCLK_4, SCL_4); held to Gnd at power-up it selects USB ISP download mode."
      },
      {
        "number": "12",
        "name": "P3.3",
        "type": "bidirectional",
        "description": "Standard I/O port P3.3 with no other function labelled on this package pinout."
      },
      {
        "number": "13",
        "name": "P3.4",
        "type": "bidirectional",
        "description": "Standard I/O port P3.4 with no other function labelled on this package pinout."
      },
      {
        "number": "14",
        "name": "P3.5",
        "type": "bidirectional",
        "description": "Standard I/O port P3.5; the USB-to-dual-UART application drives it low to power the target system."
      },
      {
        "number": "15",
        "name": "RxD/P3.6",
        "type": "bidirectional",
        "description": "Standard I/O port P3.6 that doubles as the receive pin (RxD)."
      },
      {
        "number": "16",
        "name": "TxD/P3.7",
        "type": "bidirectional",
        "description": "Standard I/O port P3.7 that doubles as the transmit pin (TxD)."
      }
    ],
    "provenance": {
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          "extractor flagged: The provided pages do not include the STC8H2K12U/2K08U section (4.3, pin diagram and pin description; The diagram gives no description for UCap, and the notes on pins 3, 12, 13 and 14 do not list their ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "at": "2026-10-18T20:25:38"
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        "sha256": "046aea020e4685f3",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "total": 16,
        "described": 16,
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  "metadata": {
    "specs": {
      "Manufacturer": "STC Micro",
      "Package": "SOP-16",
      "Category": "Embedded Processors & Controllers",
      "Pins": "16"
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        "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",
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