ESP32-C3-MINI-1-N4-A

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-c3-mini-1-n4-a",
  "title": "ESP32-C3-MINI-1-N4-A",
  "brief": "Espressif Systems RF and Wireless, 53-SMD Module. 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",
    "rf and wireless",
    "esp32-c3-mini-1-n4-a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-C3-MINI-1-N4-A",
    "manufacturer": "Espressif Systems",
    "package": "53-SMD Module",
    "pin_count": 53,
    "category": "RF and Wireless",
    "subcategory": "RF and Wireless",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-c3-mini-1-n4-a.kicad_sym",
      "footprint": "esp32-c3-mini-1-n4-a.kicad_mod",
      "model_3d": "esp32-c3-mini-1-n4-a-etched.glb",
      "model_3d_plain": "esp32-c3-mini-1-n4-a.glb",
      "model_3d_step": "esp32-c3-mini-1-n4-a-etched.step",
      "model_3d_step_plain": "esp32-c3-mini-1-n4-a.step",
      "lbr": "esp32-c3-mini-1-n4-a.lbr"
    },
    "distributor_links": {
      "digikey": "1965-ESP32-C3-MINI-1-N4-ATR-ND",
      "mouser": "356-ESP32C3MINI1N4-A"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:37:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-C3-MINI-1-N4-ATR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32C3MINI1N4-A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "3",
        "name": "3V3",
        "type": "power_in",
        "description": "Power supply input; Table 6-2 gives VDD33 as 3.0 V min, 3.3 V typ, 3.6 V max."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "5",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2 with ADC1_CH2 and FSPIQ functions; also a chip boot mode strapping pin, floating by default."
      },
      {
        "number": "6",
        "name": "IO3",
        "type": "bidirectional",
        "description": "GPIO3 with ADC1_CH3 function."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "8",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: high turns the chip on, low powers it off; do not leave this pin floating."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "12",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 with ADC1_CH0 and XTAL_32K_P functions."
      },
      {
        "number": "13",
        "name": "IO1",
        "type": "bidirectional",
        "description": "GPIO1 with ADC1_CH1 and XTAL_32K_N functions."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "16",
        "name": "IO10",
        "type": "bidirectional",
        "description": "GPIO10 with FSPICS0 function."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "18",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 with ADC1_CH4, FSPIHD and MTMS functions."
      },
      {
        "number": "19",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 with ADC2_CH0, FSPIWP and MTDI functions."
      },
      {
        "number": "20",
        "name": "IO6",
        "type": "bidirectional",
        "description": "GPIO6 with FSPICLK and MTCK functions."
      },
      {
        "number": "21",
        "name": "IO7",
        "type": "bidirectional",
        "description": "GPIO7 with FSPID and MTDO functions."
      },
      {
        "number": "22",
        "name": "IO8",
        "type": "bidirectional",
        "description": "GPIO8; also a strapping pin for chip boot mode and ROM message printing, floating by default."
      },
      {
        "number": "23",
        "name": "IO9",
        "type": "bidirectional",
        "description": "GPIO9; also a chip boot mode strapping pin, weak pull-up (logic 1) by default."
      },
      {
        "number": "24",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "25",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "26",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 with USB_D- function (USB Serial/JTAG)."
      },
      {
        "number": "27",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 with USB_D+ function (USB Serial/JTAG)."
      },
      {
        "number": "28",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "29",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "30",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "GPIO20 with U0RXD function (UART0 receive, used for firmware download and log output)."
      },
      {
        "number": "31",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "GPIO21 with U0TXD function (UART0 transmit, used for firmware download and log output)."
      },
      {
        "number": "32",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "33",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "34",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "35",
        "name": "NC",
        "type": "unconnected",
        "description": "Listed as NC (no connection) in the pin definition table."
      },
      {
        "number": "36",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "37",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "38",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "40",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "41",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "42",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "43",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "44",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "45",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "46",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "47",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "48",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "49",
        "name": "GND",
        "type": "power_in",
        "description": "Ground thermal pad (labelled EPAD in the schematic); soldering it to the base board ground is optional but improves thermal performance, applied with a correct amount of solder paste."
      },
      {
        "number": "50",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "51",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "52",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "53",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      }
    ],
    "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: Package variant: the datasheet covers ESP32-C3-MINI-1 (ANT) and ESP32-C3-MINI-1U (CONN) and gives on; Pin 26 (IO18) name is garbled in the source text ('USB_D�'); written as USB_D- based on the pairing ; Pin types: the datasheet uses 'I/O/T' for GPIO pins, mapped here to bidirectional. The datasheet cal"
        ],
        "pages_sent": 23,
        "cost_usd": 0.0744,
        "at": "2026-10-28T17:37:47"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf",
        "pages": 48,
        "sha256": "de7361381348d82a",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 53,
        "described": 53,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 2.63,
        "footprint_binding": "identity",
        "sha256": "64d098007e10958a0f792254dc885881936cbade28c09a71bd149f3d020552e5",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "53-SMD Module",
      "Category": "RF and Wireless",
      "Pins": "53"
    },
    "appearance": {
      "contacts": {
        "quote": "CONTACT MATERIAL: COPPER ALLOY, GOLD PLATED ALL OVER;",
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        "material": "COPPER ALLOY",
        "plating": "gold"
      },
      "housing": {
        "quote": "HOUSING MATERIAL: THERMOPLASTIC, WHITE, UL 94V-0;",
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        "material": "THERMOPLASTIC"
      },
      "shell": {
        "quote": "SHELL MATERIAL: COPPER ALLOY, GOLD PLATED ALL OVER;",
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        "material": "COPPER ALLOY",
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      "version": 1,
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      "rows": [
        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
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        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "recommended_operating",
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          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 21,
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        },
        {
          "name": "Current delivered by external power supply",
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        {
          "name": "Operating ambient temperature (85 °C version)",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "85 °C version",
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        {
          "name": "Pin capacitance",
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          "source_page": 21,
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        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
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          "source_page": 21,
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        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "High-level source current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VDD = 3.3 V, VOH >= 2.64 V, PAD_DRIVER = 3",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "Low-level sink current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 28,
          "max": null,
          "conditions": "VDD = 3.3 V, VOL = 0.495 V, PAD_DRIVER = 3",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "Internal weak pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
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          "source_page": 21,
          "source": "datasheet"
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        {
          "name": "Internal weak pull-down resistor",
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          "source": "datasheet"
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        {
          "name": "Power supply voltage (1.8 V)",
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          "unit": "V",
          "min": 1.65,
          "typ": 1.8,
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          "min": 2.7,
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          "source_page": 23,
          "source": "datasheet"
        },
        {
          "name": "Maximum clock frequency",
          "symbol": "FC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "Flash",
          "source_page": 23,
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        },
        {
          "name": "Light-sleep current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "VDD_SPI and Wi-Fi powered down, all GPIOs high-impedance",
          "source_page": 23,
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        {
          "name": "Deep-sleep current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "RTC timer + RTC memory",
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          "source": "datasheet"
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        {
          "name": "Power-off current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "CHIP_EN set to low level, chip powered off",
          "source_page": 23,
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