AC1042A2

{
  "schema_version": 1,
  "type": "component",
  "slug": "ac1042a2",
  "title": "AC1042A2",
  "brief": "JieLi Tech 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": [
    "component",
    "embedded processors & controllers",
    "ac1042a2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AC1042A2",
    "manufacturer": "JieLi Tech",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346775176454144",
    "parts": {
      "symbol": "ac1042a2.kicad_sym",
      "footprint": "ac1042a2.kicad_mod",
      "model_3d": "ac1042a2-hero.glb",
      "model_3d_plain": "ac1042a2-etched.glb",
      "model_3d_step": "ac1042a2-etched.step",
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      "lbr": "ac1042a2.lbr"
    },
    "distributor_links": {
      "lcsc": "C22440793"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:28:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O with 8 mA normal and 64 mA high drive, also usable as the DAC analog audio output, ADC channel 13, or the low-voltage detect input."
      },
      {
        "number": "2",
        "name": "VSSIO",
        "type": "power_in",
        "description": "Digital ground for the I/O domain."
      },
      {
        "number": "3",
        "name": "VDDIO",
        "type": "power_out",
        "description": "GPIO power rail whose PMU output is specified at 2.0 V min, 3.0 V typ, 3.4 V max with up to 100 mA loading."
      },
      {
        "number": "4",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery power supply input specified from 2.0 V min to 5.5 V max (3.7 V typ)."
      },
      {
        "number": "5",
        "name": "PA2/PA12",
        "type": "bidirectional",
        "description": "Shared GPIO pin (8 mA normal / 64 mA high drive) that multiplexes PA2 (ADC2, SPI0DOB, SD0CMDA, I2C_SDA(B), PWM2H) and PA12 (I2S_LRCK, SPI1DOB, SD0CMDB, MCAP3)."
      },
      {
        "number": "6",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC9, I2S_SCLK, SPI1CLKB, SD0CLKB, or MCAP2."
      },
      {
        "number": "7",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC8, I2S_DAT3, SPI1DIB, SD0DATB, TMR1 clock input, or MCAP1."
      },
      {
        "number": "8",
        "name": "PA9",
        "type": "bidirectional",
        "description": "High-voltage-resistant GPIO rated 8 mA that also provides I2S_DAT2, UART1TXB/RXB, I2C_SDA(D), CAP1, or PWM3."
      },
      {
        "number": "9",
        "name": "USBDM",
        "type": "bidirectional",
        "description": "USB full-speed negative data line with internal pull-down, rated 10 mA, which can also be configured as a normal I/O pin and used as ADC5, SPI1DOA, SD0DATC, UART1TXA, or I2C_SDA(A)."
      },
      {
        "number": "10",
        "name": "USBDP",
        "type": "bidirectional",
        "description": "USB full-speed positive data line with internal pull-down, rated 10 mA, which can also be configured as a normal I/O pin and used as ADC4, SPI1CLKA, UART1RXA, or I2C_SCL(A)."
      },
      {
        "number": "11",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO (8 mA / 64 mA high drive) with default pull-up, also providing the long-press reset function, ADC0, and UART0TXB."
      },
      {
        "number": "12",
        "name": "PA15/PA14",
        "type": "bidirectional",
        "description": "Shared GPIO pin (8 mA / 64 mA high drive) that multiplexes PA15 (ADC12, MIC_LDO microphone power output) and PA14 (ADC11, AUX1 analog channel 1 input)."
      },
      {
        "number": "13",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC10, AUX0 analog input, MIC_BIAS microphone bias output, or CAP0 timer capture."
      },
      {
        "number": "14",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) that also serves as the MIC input channel."
      },
      {
        "number": "15",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "16",
        "name": "VCOM",
        "type": "passive",
        "description": "Analog reference pin; the datasheet gives no voltage or loading limits for it."
      }
    ],
    "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": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Table 1-1 and the Figure 1-1 pin labels show two GPIO names on pin 5 (PA2/PA12) and on pin 12 (PA15/; Pin 3 (VDDIO) is listed as a power (P) pin in Table 1-1 but described as a voltage output in the PMU; Pin types for GPIO/USB pins are mapped from the datasheet's I/O classification to KiCad bidirectiona"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0391,
        "at": "2026-10-20T17:26:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346775176454144",
        "pages": 9,
        "sha256": "ec76044fefdda2ae",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "ad58bc78a30de29f5b24f827078dc8cb70e0c710dd3fc6621dbc068a133fc694",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "JieLi Tech",
      "Package": "SOP-16",
      "Category": "Embedded Processors & Controllers",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ec76044fefdda2ae2a02fb54ca8a48b42725af1a707d6ac7fe4be35a7751c248",
      "rows": [
        {
          "name": "Ambient Temperature",
          "symbol": "Tamb",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VBAT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "3.3V IO Input Voltage",
          "symbol": "VVDDIO33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Working voltage VBAT",
          "symbol": "VBAT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Working voltage HPVDD",
          "symbol": "HPVDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Working voltage VDDIO",
          "symbol": "VDDIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 3.4,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VBAT Voltage Input",
          "symbol": "VBAT",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 3.7,
          "max": 5.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VVDDIO Voltage output",
          "symbol": "VVDDIO",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 3,
          "max": 3.4,
          "conditions": "VBAT = 3.7V, 100mA loading",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "IVDDIO Loading current",
          "symbol": "IVDDIO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VBAT=3.7V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Low-Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.33,
          "conditions": "VDDIO = 3.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "High-Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": null,
          "conditions": "VDDIO = 3.3V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Frequency Response",
          "symbol": "",
          "kind": "electrical",
          "unit": "Hz",
          "min": 20,
          "typ": null,
          "max": 16,
          "conditions": "1KHz/0dB, 100kohm loading, with A-Weighted Filter",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Internal pull-up/pull-down resistance accuracy",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "AC1042A2 (JieLi Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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