STC15F2K32S2-28I-LQFP44

{
  "schema_version": 1,
  "type": "component",
  "slug": "stc15f2k32s2-28i-lqfp44",
  "title": "STC15F2K32S2-28I-LQFP44",
  "brief": "STC Micro Microcontrollers (MCU/MPU/SOC), 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",
    "stc15f2k32s2-28i-lqfp44",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STC15F2K32S2-28I-LQFP44",
    "manufacturer": "STC Micro",
    "package": "LQFP-44(10x10)",
    "pin_count": 44,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175599638925312",
    "parts": {
      "symbol": "stc15f2k32s2-28i-lqfp44.kicad_sym",
      "footprint": "stc15f2k32s2-28i-lqfp44.kicad_mod",
      "model_3d": "stc15f2k32s2-28i-lqfp44-hero.glb",
      "model_3d_plain": "stc15f2k32s2-28i-lqfp44-etched.glb",
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      "lbr": "stc15f2k32s2-28i-lqfp44.lbr"
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    "distributor_links": {
      "lcsc": "C33042"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T17:08:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P0.5/AD5",
        "type": "bidirectional",
        "description": "Port 0 bit 5, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD5 when the external bus is used."
      },
      {
        "number": "2",
        "name": "P0.6/AD6",
        "type": "bidirectional",
        "description": "Port 0 bit 6, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD6 when the external bus is used."
      },
      {
        "number": "3",
        "name": "P0.7/AD7",
        "type": "bidirectional",
        "description": "Port 0 bit 7, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD7 when the external bus is used."
      },
      {
        "number": "4",
        "name": "P1.0/ADC0/CCP1/RxD2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.0 with ADC input channel 0, CCP1 capture/high-speed output/PWM output, and RxD2 (UART2 receive)."
      },
      {
        "number": "5",
        "name": "P1.1/ADC1/CCP0/TxD2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.1 with ADC input channel 1, CCP0 capture/high-speed output/PWM output, and TxD2 (UART2 transmit)."
      },
      {
        "number": "6",
        "name": "P4.7/TxD2_2",
        "type": "bidirectional",
        "description": "Standard I/O port P4.7, alternate UART2 transmit output TxD2_2; per the datasheet P4.7 needs a 3.3K pull-up and weak-pull-up/quasi-bidirectional mode when UART2 is switched here."
      },
      {
        "number": "7",
        "name": "P1.2/ADC2/SS/ECI",
        "type": "bidirectional",
        "description": "Standard I/O port P1.2 with ADC input channel 2, SPI slave select SS, and CCP/PCA external count input ECI."
      },
      {
        "number": "8",
        "name": "P1.3/ADC3/MOSI",
        "type": "bidirectional",
        "description": "Standard I/O port P1.3 with ADC input channel 3 and SPI MOSI (master out / slave in)."
      },
      {
        "number": "9",
        "name": "P1.4/ADC4/MISO",
        "type": "bidirectional",
        "description": "Standard I/O port P1.4 with ADC input channel 4 and SPI MISO (master in / slave out)."
      },
      {
        "number": "10",
        "name": "P1.5/ADC5/SCLK",
        "type": "bidirectional",
        "description": "Standard I/O port P1.5 with ADC input channel 5 and SPI serial clock SCLK."
      },
      {
        "number": "11",
        "name": "P1.6/ADC6/RxD_3/XTAL2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.6 with ADC input channel 6, UART1 alternate receive RxD_3, and the XTAL2 crystal amplifier output (may float when an external clock source drives XTAL1)."
      },
      {
        "number": "12",
        "name": "P1.7/ADC7/TxD_3/XTAL1",
        "type": "bidirectional",
        "description": "Standard I/O port P1.7 with ADC input channel 7, UART1 alternate transmit TxD_3, and the XTAL1 crystal amplifier input (external clock source input when no crystal is used)."
      },
      {
        "number": "13",
        "name": "P5.4/RST/MCLKO/SS_3",
        "type": "bidirectional",
        "description": "Standard I/O port P5.4 by default; can be configured via STC-ISP as RST reset input (high-level reset), or as MCLKO master clock output (MCLK/1, /2, /4) and SPI alternate slave select SS_3."
      },
      {
        "number": "14",
        "name": "Vcc",
        "type": "power_in",
        "description": "Positive power supply pin for the device (5.5V to 4.5V for the F-series, 2.4V to 3.6V for the L-series)."
      },
      {
        "number": "15",
        "name": "P5.5",
        "type": "bidirectional",
        "description": "Standard I/O port P5.5, which can be used as the comparator positive input CMP+ (set to high-impedance input when used as comparator input)."
      },
      {
        "number": "16",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pin for the device power supply."
      },
      {
        "number": "17",
        "name": "P4.0/MOSI_3",
        "type": "bidirectional",
        "description": "Standard I/O port P4.0 with alternate SPI MOSI output MOSI_3."
      },
      {
        "number": "18",
        "name": "P3.0/RxD/INT4/T2CLKO",
        "type": "bidirectional",
        "description": "Standard I/O port P3.0 with UART1 receive RxD, external interrupt INT4 (falling edge only, supports power-down wake-up), and T2 clock output T2CLKO."
      },
      {
        "number": "19",
        "name": "P3.1/TxD/T2",
        "type": "bidirectional",
        "description": "Standard I/O port P3.1 with UART1 transmit TxD and external count input for Timer/Counter 2 (T2)."
      },
      {
        "number": "20",
        "name": "P3.2/INT0",
        "type": "bidirectional",
        "description": "Standard I/O port P3.2 with external interrupt INT0 (rising/falling edge, or falling edge only if IT0 is set; supports power-down wake-up)."
      },
      {
        "number": "21",
        "name": "P3.3/INT1",
        "type": "bidirectional",
        "description": "Standard I/O port P3.3 with external interrupt INT1 (rising/falling edge, or falling edge only if IT1 is set; supports power-down wake-up)."
      },
      {
        "number": "22",
        "name": "P3.4/T0/T1CLKO",
        "type": "bidirectional",
        "description": "Standard I/O port P3.4 with Timer 0 external input T0, and Timer 1 clock output T1CLKO (can also divide an external T0 input)."
      },
      {
        "number": "23",
        "name": "P3.5/T1/T0CLKO",
        "type": "bidirectional",
        "description": "Standard I/O port P3.5 with Timer 1 external input T1 and Timer 0 clock output T0CLKO (can also divide an external T1 input)."
      },
      {
        "number": "24",
        "name": "P3.6/INT2/RxD_2",
        "type": "bidirectional",
        "description": "Standard I/O port P3.6 with external interrupt INT2 (falling edge only, supports power-down wake-up) and UART1 alternate receive RxD_2."
      },
      {
        "number": "25",
        "name": "P3.7/INT3/TxD_2",
        "type": "bidirectional",
        "description": "Standard I/O port P3.7 with external interrupt INT3 (falling edge only, supports power-down wake-up) and UART1 alternate transmit TxD_2."
      },
      {
        "number": "26",
        "name": "P4.1/MISO_3",
        "type": "bidirectional",
        "description": "Standard I/O port P4.1 with alternate SPI MISO input MISO_3."
      },
      {
        "number": "27",
        "name": "P4.2/WR",
        "type": "bidirectional",
        "description": "Standard I/O port P4.2 with external data memory write strobe WR."
      },
      {
        "number": "28",
        "name": "P4.3/SCLK_3",
        "type": "bidirectional",
        "description": "Standard I/O port P4.3 with alternate SPI serial clock SCLK_3."
      },
      {
        "number": "29",
        "name": "P4.4/RD",
        "type": "bidirectional",
        "description": "Standard I/O port P4.4 with external data memory read strobe RD."
      },
      {
        "number": "30",
        "name": "P2.0/A8/RSTOUT_LOW",
        "type": "bidirectional",
        "description": "Standard I/O port P2.0 with address bus bit A8; outputs low after power-up and during reset, and can be set high/low by software."
      },
      {
        "number": "31",
        "name": "P2.1/A9/SCLK_2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.1 with address bus bit A9 and alternate SPI clock SCLK_2."
      },
      {
        "number": "32",
        "name": "P2.2/A10/MISO_2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.2 with address bus bit A10 and alternate SPI MISO_2."
      },
      {
        "number": "33",
        "name": "P2.3/A11/MOSI_2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.3 with address bus bit A11 and alternate SPI MOSI_2."
      },
      {
        "number": "34",
        "name": "P2.4/A12/ECI_3/SS_2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.4 with address bus bit A12, CCP/PCA external count input ECI_3, and alternate SPI slave select SS_2."
      },
      {
        "number": "35",
        "name": "P2.5/A13/CCP0_3",
        "type": "bidirectional",
        "description": "Standard I/O port P2.5 with address bus bit A13 and CCP0 alternate capture/high-speed output/PWM channel CCP0_3."
      },
      {
        "number": "36",
        "name": "P2.6/A14/CCP1_3",
        "type": "bidirectional",
        "description": "Standard I/O port P2.6 with address bus bit A14 and CCP1 alternate capture/high-speed output/PWM channel CCP1_3."
      },
      {
        "number": "37",
        "name": "P2.7/A15/CCP2_3",
        "type": "bidirectional",
        "description": "Standard I/O port P2.7 with address bus bit A15 and CCP2 alternate capture/high-speed output/PWM channel CCP2_3."
      },
      {
        "number": "38",
        "name": "P4.5/ALE",
        "type": "bidirectional",
        "description": "Standard I/O port P4.5 with address latch enable output ALE."
      },
      {
        "number": "39",
        "name": "P4.6/RxD2_2",
        "type": "bidirectional",
        "description": "Standard I/O port P4.6 with alternate UART2 receive RxD2_2."
      },
      {
        "number": "40",
        "name": "P0.0/AD0",
        "type": "bidirectional",
        "description": "Port 0 bit 0, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD0 when the external bus is used."
      },
      {
        "number": "41",
        "name": "P0.1/AD1",
        "type": "bidirectional",
        "description": "Port 0 bit 1, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD1 when the external bus is used."
      },
      {
        "number": "42",
        "name": "P0.2/AD2",
        "type": "bidirectional",
        "description": "Port 0 bit 2, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD2 when the external bus is used."
      },
      {
        "number": "43",
        "name": "P0.3/AD3",
        "type": "bidirectional",
        "description": "Port 0 bit 3, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD3 when the external bus is used."
      },
      {
        "number": "44",
        "name": "P0.4/AD4",
        "type": "bidirectional",
        "description": "Port 0 bit 4, quasi-bidirectional with weak pull-up after reset, also the multiplexed low-address/data bus line AD4 when the external bus is used."
      }
    ],
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin table (p.48) prints pin 2 as 'P0.6/AD5', which duplicates pin 1's AD5 function; th; P4.7/TxD2_2 and P4.6/RxD2_2 are the alternate UART2 pins; they are only usable when UART2 is switche; P5.4 is an I/O pin by default; it functions as the RST reset pin only when configured that way with "
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        "at": "2026-10-18T17:06:02"
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    "specs": {
      "Manufacturer": "STC Micro",
      "Package": "LQFP-44(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "44"
    },
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          "max": 5.5,
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          "min": -55,
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        {
          "name": "Operating temperature (I)",
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          "unit": "℃",
          "min": -40,
          "typ": null,
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        {
          "name": "DC power supply (5V)",
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