ESP32-S3-WROOM-1-N16R2

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-s3-wroom-1-n16r2",
  "title": "ESP32-S3-WROOM-1-N16R2",
  "brief": "Espressif Systems WiFi Modules, ESP32-S3-WROOM-1. 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",
    "iot-communication modules",
    "esp32-s3-wroom-1-n16r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-S3-WROOM-1-N16R2",
    "manufacturer": "Espressif Systems",
    "package": "ESP32-S3-WROOM-1",
    "pin_count": 41,
    "category": "IoT/Communication Modules",
    "subcategory": "WiFi Modules",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-s3-wroom-1-n16r2.kicad_sym",
      "footprint": "esp32-s3-wroom-1-n16r2.kicad_mod",
      "model_3d": "esp32-s3-wroom-1-n16r2-etched.glb",
      "model_3d_plain": "esp32-s3-wroom-1-n16r2.glb",
      "model_3d_step": "esp32-s3-wroom-1-n16r2-etched.step",
      "model_3d_step_plain": "esp32-s3-wroom-1-n16r2.step",
      "lbr": "esp32-s3-wroom-1-n16r2.lbr"
    },
    "distributor_links": {
      "lcsc": "C2913205",
      "digikey": "5407-ESP32-S3-WROOM-1-N16R2TR-ND",
      "mouser": "356-ESP32S3WRM1N16R2"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T17:52:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "5407-ESP32-S3-WROOM-1-N16R2TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "356-ESP32S3WRM1N16R2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin of the module."
      },
      {
        "number": "2",
        "name": "3V3",
        "type": "power_in",
        "description": "Module power supply pin; the datasheet specifies VDD33 at 3.0 V min, 3.3 V typ and 3.6 V max, with at least 0.5 A delivered by the external supply."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Chip enable: High enables the chip, Low powers it off, and the pin must not be left floating."
      },
      {
        "number": "4",
        "name": "IO4",
        "type": "bidirectional",
        "description": "GPIO4 with alternate functions RTC_GPIO4, TOUCH4 and ADC1_CH3."
      },
      {
        "number": "5",
        "name": "IO5",
        "type": "bidirectional",
        "description": "GPIO5 with alternate functions RTC_GPIO5, TOUCH5 and ADC1_CH4."
      },
      {
        "number": "6",
        "name": "IO6",
        "type": "bidirectional",
        "description": "GPIO6 with alternate functions RTC_GPIO6, TOUCH6 and ADC1_CH5."
      },
      {
        "number": "7",
        "name": "IO7",
        "type": "bidirectional",
        "description": "GPIO7 with alternate functions RTC_GPIO7, TOUCH7 and ADC1_CH6."
      },
      {
        "number": "8",
        "name": "IO15",
        "type": "bidirectional",
        "description": "GPIO15 with alternate functions RTC_GPIO15, U0RTS, ADC2_CH4 and XTAL_32K_P."
      },
      {
        "number": "9",
        "name": "IO16",
        "type": "bidirectional",
        "description": "GPIO16 with alternate functions RTC_GPIO16, U0CTS, ADC2_CH5 and XTAL_32K_N."
      },
      {
        "number": "10",
        "name": "IO17",
        "type": "bidirectional",
        "description": "GPIO17 with alternate functions RTC_GPIO17, U1TXD and ADC2_CH6."
      },
      {
        "number": "11",
        "name": "IO18",
        "type": "bidirectional",
        "description": "GPIO18 with alternate functions RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3."
      },
      {
        "number": "12",
        "name": "IO8",
        "type": "bidirectional",
        "description": "GPIO8 with alternate functions RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1."
      },
      {
        "number": "13",
        "name": "IO19",
        "type": "bidirectional",
        "description": "GPIO19 with alternate functions RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB_D-."
      },
      {
        "number": "14",
        "name": "IO20",
        "type": "bidirectional",
        "description": "GPIO20 with alternate functions RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB_D+."
      },
      {
        "number": "15",
        "name": "IO3",
        "type": "bidirectional",
        "description": "GPIO3 with alternate functions RTC_GPIO3, TOUCH3 and ADC1_CH2; it is the JTAG signal-source strapping pin."
      },
      {
        "number": "16",
        "name": "IO46",
        "type": "bidirectional",
        "description": "GPIO46 general-purpose I/O; it is a strapping pin for chip boot mode and ROM message printing, with a weak pull-down at reset."
      },
      {
        "number": "17",
        "name": "IO9",
        "type": "bidirectional",
        "description": "GPIO9 with alternate functions RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD."
      },
      {
        "number": "18",
        "name": "IO10",
        "type": "bidirectional",
        "description": "GPIO10 with alternate functions RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0."
      },
      {
        "number": "19",
        "name": "IO11",
        "type": "bidirectional",
        "description": "GPIO11 with alternate functions RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID."
      },
      {
        "number": "20",
        "name": "IO12",
        "type": "bidirectional",
        "description": "GPIO12 with alternate functions RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK."
      },
      {
        "number": "21",
        "name": "IO13",
        "type": "bidirectional",
        "description": "GPIO13 with alternate functions RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ."
      },
      {
        "number": "22",
        "name": "IO14",
        "type": "bidirectional",
        "description": "GPIO14 with alternate functions RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP."
      },
      {
        "number": "23",
        "name": "IO21",
        "type": "bidirectional",
        "description": "GPIO21 with alternate functions RTC_GPIO21 only."
      },
      {
        "number": "24",
        "name": "IO47",
        "type": "bidirectional",
        "description": "GPIO47 with alternate functions SPICLK_P_DIFF and SUBSPICLK_P_DIFF; on ESP32-S3R16V modules this pin operates at 1.8 V instead of 3.3 V."
      },
      {
        "number": "25",
        "name": "IO48",
        "type": "bidirectional",
        "description": "GPIO48 with alternate functions SPICLK_N_DIFF and SUBSPICLK_N_DIFF; on ESP32-S3R16V modules this pin operates at 1.8 V instead of 3.3 V."
      },
      {
        "number": "26",
        "name": "IO45",
        "type": "bidirectional",
        "description": "GPIO45 general-purpose I/O; it is the VDD_SPI voltage strapping pin, with a weak pull-down at reset."
      },
      {
        "number": "27",
        "name": "IO0",
        "type": "bidirectional",
        "description": "GPIO0 with alternate function RTC_GPIO0; it is a chip boot mode strapping pin with a weak pull-up at reset."
      },
      {
        "number": "28",
        "name": "IO35",
        "type": "bidirectional",
        "description": "GPIO35 with alternate functions SPIIO6, FSPID and SUBSPID; its default function is set by eFuse, and it is connected to Octal PSRAM and unavailable on ESP32-S3R8 or ESP32-S3R16V modules."
      },
      {
        "number": "29",
        "name": "IO36",
        "type": "bidirectional",
        "description": "GPIO36 with alternate functions SPIIO7, FSPICLK and SUBSPICLK; its default function is set by eFuse, and it is connected to Octal PSRAM and unavailable on ESP32-S3R8 or ESP32-S3R16V modules."
      },
      {
        "number": "30",
        "name": "IO37",
        "type": "bidirectional",
        "description": "GPIO37 with alternate functions SPIDQS, FSPIQ and SUBSPIQ; its default function is set by eFuse, and it is connected to Octal PSRAM and unavailable on ESP32-S3R8 or ESP32-S3R16V modules."
      },
      {
        "number": "31",
        "name": "IO38",
        "type": "bidirectional",
        "description": "GPIO38 with alternate functions FSPIWP and SUBSPIWP."
      },
      {
        "number": "32",
        "name": "IO39",
        "type": "bidirectional",
        "description": "GPIO39 with alternate functions MTCK, CLK_OUT3 and SUBSPICS1 (JTAG clock)."
      },
      {
        "number": "33",
        "name": "IO40",
        "type": "bidirectional",
        "description": "GPIO40 with alternate functions MTDO and CLK_OUT2 (JTAG data out)."
      },
      {
        "number": "34",
        "name": "IO41",
        "type": "bidirectional",
        "description": "GPIO41 with alternate functions MTDI and CLK_OUT1 (JTAG data in)."
      },
      {
        "number": "35",
        "name": "IO42",
        "type": "bidirectional",
        "description": "GPIO42 with alternate function MTMS (JTAG mode select)."
      },
      {
        "number": "36",
        "name": "RXD0",
        "type": "bidirectional",
        "description": "UART0 receive pin U0RXD, also usable as GPIO44 and CLK_OUT2."
      },
      {
        "number": "37",
        "name": "TXD0",
        "type": "bidirectional",
        "description": "UART0 transmit pin U0TXD, also usable as GPIO43 and CLK_OUT1."
      },
      {
        "number": "38",
        "name": "IO2",
        "type": "bidirectional",
        "description": "GPIO2 with alternate functions RTC_GPIO2, TOUCH2 and ADC1_CH1."
      },
      {
        "number": "39",
        "name": "IO1",
        "type": "bidirectional",
        "description": "GPIO1 with alternate functions RTC_GPIO1, TOUCH1 and ADC1_CH0."
      },
      {
        "number": "40",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin of the module."
      },
      {
        "number": "41",
        "name": "EPAD",
        "type": "power_in",
        "description": "Exposed ground pad; soldering it to the base-board ground is optional and improves thermal performance, but excess solder paste can lift 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: The MPN ESP32-S3-WROOM-1-N16R2 does not appear in the excerpt. The series comparison table (Table 1-; Footnote b (pins 28-30, IO35-IO37) says these pins are used by Octal PSRAM only on ESP32-S3R8 or ESP; Footnote c (IO47/IO48) says the pins run at 1.8 V on ESP32-S3R16V modules. The excerpt does not say "
        ],
        "pages_sent": 28,
        "cost_usd": 0.0956,
        "at": "2026-10-28T17:51:47"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf",
        "pages": 53,
        "sha256": "27d71971da07c280",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-s3-wroom-1-n16r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          18,
          25.5,
          3.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "77530bd006a290ff7fd73f765812074d0ffa5fad11fc275560b087f871458347",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s3-wroom-1-n16r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 3.77,
        "footprint_binding": "identity",
        "sha256": "de84b19641819876e18bfcbc4bd2cc2077add9094cffe8b8c4ffb96d0f3f0602",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "ESP32-S3-WROOM-1",
      "Category": "IoT/Communication Modules",
      "Pins": "41"
    },
    "appearance": {
      "contacts": {
        "quote": "Solder: Sn-Ag-Cu (SAC305) lead-free solder Temperature (°C)",
        "page": 47,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "27d71971da07c280c6068d08c74720d1a25b8f20cf8494dc1765bdd28d40d435"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "27d71971da07c280c6068d08c74720d1a25b8f20cf8494dc1765bdd28d40d435",
      "rows": [
        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTORE",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage",
          "symbol": "VDD33",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Current delivered by external power supply",
          "symbol": "IVDD",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature (65 °C version)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 65,
          "conditions": "65 °C version",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature (85 °C version)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "85 °C version",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature (105 °C version)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "105 °C version",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (1.8 V)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 1.62,
          "typ": 1.8,
          "max": 1.98,
          "conditions": "",
          "source_page": 31,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (3.3 V)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 31,
          "source": "datasheet"
        },
        {
          "name": "Maximum clock frequency",
          "symbol": "FC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 31,
          "source": "datasheet"
        },
        {
          "name": "Center frequency range of operating channel (Wi-Fi)",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": 2412,
          "typ": null,
          "max": 2484,
          "conditions": "",
          "source_page": 32,
          "source": "datasheet"
        },
        {
          "name": "Center frequency range of operating channel (Bluetooth LE)",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": 2402,
          "typ": null,
          "max": 2480,
          "conditions": "",
          "source_page": 34,
          "source": "datasheet"
        },
        {
          "name": "RF transmit power range (Bluetooth LE)",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBm",
          "min": -24,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 34,
          "source": "datasheet"
        },
        {
          "name": "Pin capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "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": 27,
          "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": 27,
          "source": "datasheet"
        },
        {
          "name": "Internal weak pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        },
        {
          "name": "Internal weak pull-down resistor",
          "symbol": "RPD",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 27,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "ESP32-S3-WROOM-1-N16R2 (Espressif Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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