ESP32-S2R2

{
  "slug": "esp32-s2r2",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems RF and Wireless, 56-VFQFN Exposed Pad. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "esp32-s2r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-s2r2.kicad_sym",
    "esp32-s2r2.kicad_mod",
    "esp32-s2r2.glb",
    "esp32-s2r2.step",
    "esp32-s2r2.lbr",
    "docs/hero.png",
    "docs/esp32-s2r2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp32-s2r2-hero.glb",
    "esp32-s2r2-hero.overlay.json",
    "esp32-s2r2-etched.glb"
  ],
  "component": {
    "mpn": "ESP32-S2R2",
    "manufacturer": "Espressif Systems",
    "package": "56-VFQFN Exposed Pad",
    "pin_count": 57,
    "category": "RF and Wireless",
    "subcategory": "RF and Wireless",
    "datasheet": "https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-s2r2.kicad_sym",
      "footprint": "esp32-s2r2.kicad_mod",
      "model_3d": "esp32-s2r2-hero.glb",
      "model_3d_plain": "esp32-s2r2-etched.glb",
      "model_3d_step": "esp32-s2r2-etched.step",
      "model_3d_step_plain": "esp32-s2r2.step",
      "lbr": "esp32-s2r2.lbr"
    },
    "distributor_links": {
      "mouser": "356-ESP32-S2R2"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T23:35:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 952 calls left today"
      },
      "mouser": {
        "pn": "356-ESP32-S2R2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply input for the chip's analog circuitry."
      },
      {
        "number": "2",
        "name": "LNA_IN",
        "type": "bidirectional",
        "description": "RF low-noise amplifier input/output signal for the 2.4 GHz receive path."
      },
      {
        "number": "3",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "4",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "5",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O (also RTC_GPIO0) and strapping pin for chip boot mode control, with weak pull-up enabled at reset."
      },
      {
        "number": "6",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO1, TOUCH1 and ADC1_CH0."
      },
      {
        "number": "7",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO2, TOUCH2 and ADC1_CH1."
      },
      {
        "number": "8",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO3, TOUCH3 and ADC1_CH2."
      },
      {
        "number": "9",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO4, TOUCH4 and ADC1_CH3."
      },
      {
        "number": "10",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO5, TOUCH5 and ADC1_CH4."
      },
      {
        "number": "11",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO6, TOUCH6 and ADC1_CH5."
      },
      {
        "number": "12",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO7, TOUCH7 and ADC1_CH6."
      },
      {
        "number": "13",
        "name": "GPIO8",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1."
      },
      {
        "number": "14",
        "name": "GPIO9",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO9, TOUCH9, ADC1_CH8, SUBSPIHD and FSPIHD."
      },
      {
        "number": "15",
        "name": "GPIO10",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO10, TOUCH10, ADC1_CH9, FSPIIO4, SUBSPICS0 and FSPICS0."
      },
      {
        "number": "16",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO11, TOUCH11, ADC2_CH0, FSPIIO5, SUBSPID and FSPID."
      },
      {
        "number": "17",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO12, TOUCH12, ADC2_CH1, FSPIIO6, SUBSPICLK and FSPICLK."
      },
      {
        "number": "18",
        "name": "GPIO13",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIIO7, SUBSPIQ and FSPIQ."
      },
      {
        "number": "19",
        "name": "GPIO14",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIDQS, SUBSPIWP and FSPIWP."
      },
      {
        "number": "20",
        "name": "VDD3P3_RTC",
        "type": "power_in",
        "description": "RTC domain supply input."
      },
      {
        "number": "21",
        "name": "XTAL_32K_P",
        "type": "bidirectional",
        "description": "Positive 32 kHz clock signal connected to the crystal or oscillator, also usable as GPIO15, RTC_GPIO15, U0RTS and ADC2_CH4."
      },
      {
        "number": "22",
        "name": "XTAL_32K_N",
        "type": "bidirectional",
        "description": "Negative 32 kHz clock signal for the external 32 kHz crystal or clock input/output, also usable as GPIO16, RTC_GPIO16, U0CTS and ADC2_CH5."
      },
      {
        "number": "23",
        "name": "DAC_1",
        "type": "bidirectional",
        "description": "DAC channel 1 analog voltage output, also usable as GPIO17, RTC_GPIO17, U1TXD and ADC2_CH6."
      },
      {
        "number": "24",
        "name": "DAC_2",
        "type": "bidirectional",
        "description": "DAC channel 2 analog voltage output, also usable as GPIO18, RTC_GPIO18, U1RXD and ADC2_CH7."
      },
      {
        "number": "25",
        "name": "GPIO19",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO19, ADC2_CH8, U1RTS and USB_D-, which is connected to USB OTG by default."
      },
      {
        "number": "26",
        "name": "GPIO20",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO20, ADC2_CH9, U1CTS and USB_D+, which is connected to USB OTG by default."
      },
      {
        "number": "27",
        "name": "VDD3P3_RTC_IO",
        "type": "power_in",
        "description": "RTC and part of digital power domain supply that powers the RTC IO pins."
      },
      {
        "number": "28",
        "name": "GPIO21",
        "type": "bidirectional",
        "description": "General-purpose I/O also available as RTC_GPIO21."
      },
      {
        "number": "29",
        "name": "SPICS1",
        "type": "bidirectional",
        "description": "SPI chip select 1 on the VDD_SPI domain, allocated to in-package PSRAM and not recommended for other uses."
      },
      {
        "number": "30",
        "name": "VDD_SPI",
        "type": "power_out",
        "description": "Power pin for the flash/PSRAM SPI IO domain, acting as a backup power line input or as a regulator output to in-package or off-package flash/PSRAM depending on configuration."
      },
      {
        "number": "31",
        "name": "SPIHD",
        "type": "bidirectional",
        "description": "SPI hold signal on the VDD_SPI domain, allocated to in-package flash/PSRAM and not recommended for other uses."
      },
      {
        "number": "32",
        "name": "SPIWP",
        "type": "bidirectional",
        "description": "SPI write protect signal on the VDD_SPI domain, allocated to in-package flash/PSRAM and not recommended for other uses."
      },
      {
        "number": "33",
        "name": "SPICS0",
        "type": "bidirectional",
        "description": "SPI chip select 0 on the VDD_SPI domain, allocated to in-package flash and not recommended for other uses."
      },
      {
        "number": "34",
        "name": "SPICLK",
        "type": "bidirectional",
        "description": "SPI clock on the VDD_SPI domain, allocated to in-package flash/PSRAM and not recommended for other uses."
      },
      {
        "number": "35",
        "name": "SPIQ",
        "type": "bidirectional",
        "description": "SPI data line (MISO) on the VDD_SPI domain, allocated to in-package flash/PSRAM and not recommended for other uses."
      },
      {
        "number": "36",
        "name": "SPID",
        "type": "bidirectional",
        "description": "SPI data line (MOSI) on the VDD_SPI domain, allocated to in-package flash/PSRAM and not recommended for other uses."
      },
      {
        "number": "37",
        "name": "GPIO33",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD_SPI/VDD3P3_CPU domain, used as the high data line IO4 in 8-line SPI mode."
      },
      {
        "number": "38",
        "name": "GPIO34",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD_SPI/VDD3P3_CPU domain, used as the high data line IO5 in 8-line SPI mode."
      },
      {
        "number": "39",
        "name": "GPIO35",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD_SPI/VDD3P3_CPU domain, used as the high data line IO6 in 8-line SPI mode."
      },
      {
        "number": "40",
        "name": "GPIO36",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD_SPI/VDD3P3_CPU domain, used as the high data line IO7 in 8-line SPI mode."
      },
      {
        "number": "41",
        "name": "GPIO37",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD_SPI/VDD3P3_CPU domain, used as the DQS signal in 8-line SPI mode."
      },
      {
        "number": "42",
        "name": "GPIO38",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDD3P3_CPU digital domain."
      },
      {
        "number": "43",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "JTAG test clock, also usable as GPIO39; input enabled."
      },
      {
        "number": "44",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "JTAG test data output, also usable as GPIO40."
      },
      {
        "number": "45",
        "name": "VDD3P3_CPU",
        "type": "power_in",
        "description": "Digital power domain supply input for digital IO."
      },
      {
        "number": "46",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "JTAG test data input, also usable as GPIO41; input enabled."
      },
      {
        "number": "47",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "JTAG test mode select, also usable as GPIO42; input enabled."
      },
      {
        "number": "48",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART0 transmit data, also usable as GPIO43; weak pull-up enabled at reset."
      },
      {
        "number": "49",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART0 receive data, also usable as GPIO44; weak pull-up enabled at reset."
      },
      {
        "number": "50",
        "name": "GPIO45",
        "type": "bidirectional",
        "description": "General-purpose I/O and strapping pin for VDD_SPI voltage selection, with weak pull-down enabled at reset."
      },
      {
        "number": "51",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "52",
        "name": "XTAL_N",
        "type": "passive",
        "description": "External clock input/output connected to the oscillator (negative side of the differential clock)."
      },
      {
        "number": "53",
        "name": "XTAL_P",
        "type": "passive",
        "description": "External clock input/output connected to the oscillator (positive side of the differential clock)."
      },
      {
        "number": "54",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "55",
        "name": "GPIO46",
        "type": "input",
        "description": "Input-only GPIO46 strapping pin with fixed pull-down, used for chip boot mode and ROM message printing control."
      },
      {
        "number": "56",
        "name": "CHIP_PU",
        "type": "input",
        "description": "Power-up and reset pin: high starts the chip and low shuts it down; it must not be left floating."
      },
      {
        "number": "57",
        "name": "GND",
        "type": "power_in",
        "description": "External ground connection to the exposed pad."
      }
    ],
    "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: Pinout for ESP32-S2R2 is taken from the shared ESP32-S2 QFN56 (7x7 mm) table. The text states the pa"
        ],
        "pages_sent": 39,
        "cost_usd": 0.1591,
        "at": "2026-10-27T23:35:45"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf",
        "pages": 65,
        "sha256": "7c0c54f11e79cc77",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 57,
        "described": 57,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-s2r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a7e1b68d7c240016a0c468e633f7967f445758a90dea110c3eff24882158aaa8",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s2r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5afe1646fceaf10bb5226c7dff53141ca20d3f2ef8153e2d394c3ea2afee98b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}