ESP32-S3R2

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-s3r2",
  "title": "ESP32-S3R2",
  "brief": "Espressif Systems RF and Wireless, 56-VFQFN Exposed Pad. 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-s3r2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-S3R2",
    "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-s3_datasheet_en.pdf",
    "parts": {
      "symbol": "esp32-s3r2.kicad_sym",
      "footprint": "esp32-s3r2.kicad_mod",
      "model_3d": "esp32-s3r2-hero.glb",
      "model_3d_plain": "esp32-s3r2-etched.glb",
      "model_3d_step": "esp32-s3r2-etched.step",
      "model_3d_step_plain": "esp32-s3r2.step",
      "lbr": "esp32-s3r2.lbr"
    },
    "distributor_links": {
      "mouser": "356-ESP32-S3R2"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T23:35:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 952 calls left today"
      },
      "mouser": {
        "pn": "356-ESP32-S3R2",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LNA_IN",
        "type": "bidirectional",
        "description": "Low Noise Amplifier (RF LNA) input/output signal for the 2.4 GHz RF path."
      },
      {
        "number": "2",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input for the chip."
      },
      {
        "number": "3",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input for the chip."
      },
      {
        "number": "4",
        "name": "CHIP_PU",
        "type": "input",
        "description": "High enables the chip and low disables (powers down) it; do not leave this pin floating."
      },
      {
        "number": "5",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "Strapping pin for chip boot mode (with GPIO46), with weak pull-up at reset (default bit value 1)."
      },
      {
        "number": "6",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH0/TOUCH1 analog function; default drive 20 mA."
      },
      {
        "number": "7",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH1/TOUCH2 analog function; default drive 20 mA."
      },
      {
        "number": "8",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "Strapping pin for JTAG signal source selection, floating by default at reset (Table 3-1)."
      },
      {
        "number": "9",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH3/TOUCH4 analog function; default drive 20 mA."
      },
      {
        "number": "10",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH4/TOUCH5 analog function; default drive 20 mA."
      },
      {
        "number": "11",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH5/TOUCH6 analog function; default drive 20 mA."
      },
      {
        "number": "12",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH6/TOUCH7 analog function; default drive 20 mA."
      },
      {
        "number": "13",
        "name": "GPIO8",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH7/TOUCH8 analog function; default drive 20 mA."
      },
      {
        "number": "14",
        "name": "GPIO9",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH8/TOUCH9 analog function; default drive 20 mA."
      },
      {
        "number": "15",
        "name": "GPIO10",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC1_CH9/TOUCH10 analog function; default drive 20 mA."
      },
      {
        "number": "16",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC2_CH0/TOUCH11 analog function; default drive 20 mA."
      },
      {
        "number": "17",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC2_CH1/TOUCH12 analog function; default drive 20 mA."
      },
      {
        "number": "18",
        "name": "GPIO13",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC2_CH2/TOUCH13 analog function; default drive 20 mA."
      },
      {
        "number": "19",
        "name": "GPIO14",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX/GPIO Matrix functions and ADC2_CH3/TOUCH14 analog function; default drive 20 mA."
      },
      {
        "number": "20",
        "name": "VDD3P3_RTC",
        "type": "power_in",
        "description": "Supply input for the RTC and part of the digital power domains, including RTC IO pins."
      },
      {
        "number": "21",
        "name": "XTAL_32K_P",
        "type": "bidirectional",
        "description": "Positive 32 kHz clock connection to the chip's oscillator, also usable as ADC2_CH4 analog function (RTC_GPIO15)."
      },
      {
        "number": "22",
        "name": "XTAL_32K_N",
        "type": "bidirectional",
        "description": "Negative 32 kHz external clock input/output, also usable as ADC2_CH5 analog function (RTC_GPIO16)."
      },
      {
        "number": "23",
        "name": "GPIO17",
        "type": "bidirectional",
        "description": "General-purpose IO with ADC2_CH6 analog function; default drive strength 10 mA."
      },
      {
        "number": "24",
        "name": "GPIO18",
        "type": "bidirectional",
        "description": "General-purpose IO with ADC2_CH7 analog function; default drive strength 10 mA."
      },
      {
        "number": "25",
        "name": "GPIO19",
        "type": "bidirectional",
        "description": "General-purpose IO that by default serves as USB_D- for the USB Serial/JTAG and USB OTG function; default drive strength 40 mA."
      },
      {
        "number": "26",
        "name": "GPIO20",
        "type": "bidirectional",
        "description": "General-purpose IO that by default serves as USB_D+ for the USB Serial/JTAG and USB OTG function; default drive strength 40 mA."
      },
      {
        "number": "27",
        "name": "GPIO21",
        "type": "bidirectional",
        "description": "General-purpose IO with IO MUX and RTC GPIO functions; default drive strength 20 mA."
      },
      {
        "number": "28",
        "name": "SPICS1",
        "type": "bidirectional",
        "description": "SPI chip select 1 powered by VDD_SPI, used to connect the in-package PSRAM and not recommended for other use."
      },
      {
        "number": "29",
        "name": "VDD_SPI",
        "type": "power_out",
        "description": "Backup power line input or regulated output for the in-package flash/PSRAM and SPI IO, configurable as input or output."
      },
      {
        "number": "30",
        "name": "SPIHD",
        "type": "bidirectional",
        "description": "SPI hold signal (SIO3 / DQ3) for the in-package flash/PSRAM, powered by VDD_SPI and not for other use."
      },
      {
        "number": "31",
        "name": "SPIWP",
        "type": "bidirectional",
        "description": "SPI write-protect signal (SIO2 / DQ2) for the in-package flash/PSRAM, powered by VDD_SPI and not for other use."
      },
      {
        "number": "32",
        "name": "SPICS0",
        "type": "bidirectional",
        "description": "SPI chip select 0 for the in-package flash, powered by VDD_SPI and not for other use."
      },
      {
        "number": "33",
        "name": "SPICLK",
        "type": "bidirectional",
        "description": "SPI clock for the in-package flash/PSRAM, powered by VDD_SPI and not for other use."
      },
      {
        "number": "34",
        "name": "SPIQ",
        "type": "bidirectional",
        "description": "SPI data line (DO / SO / SIO1 / DQ1) for the in-package flash/PSRAM, powered by VDD_SPI and not for other use."
      },
      {
        "number": "35",
        "name": "SPID",
        "type": "bidirectional",
        "description": "SPI data line (DI / SI / SIO0 / DQ0) for the in-package flash/PSRAM, powered by VDD_SPI and not for other use."
      },
      {
        "number": "36",
        "name": "SPICLK_N",
        "type": "bidirectional",
        "description": "Negative differential SPI clock, powered by VDD_SPI or VDD3P3_CPU, reserved for in-package memory unless the chip is not connected to 8-line SPI memory."
      },
      {
        "number": "37",
        "name": "SPICLK_P",
        "type": "bidirectional",
        "description": "Positive differential SPI clock, powered by VDD_SPI or VDD3P3_CPU, reserved for in-package memory unless the chip is not connected to 8-line SPI memory."
      },
      {
        "number": "38",
        "name": "GPIO33",
        "type": "bidirectional",
        "description": "Data line DQ4 for the in-package octal PSRAM/flash, powered by VDD_SPI or VDD3P3_CPU; usable as GPIO only if no 8-line SPI memory is connected."
      },
      {
        "number": "39",
        "name": "GPIO34",
        "type": "bidirectional",
        "description": "Data line DQ5 for the in-package octal PSRAM/flash, powered by VDD_SPI or VDD3P3_CPU; usable as GPIO only if no 8-line SPI memory is connected."
      },
      {
        "number": "40",
        "name": "GPIO35",
        "type": "bidirectional",
        "description": "Data line DQ6 for the in-package octal PSRAM/flash, powered by VDD_SPI or VDD3P3_CPU; usable as GPIO only if no 8-line SPI memory is connected."
      },
      {
        "number": "41",
        "name": "GPIO36",
        "type": "bidirectional",
        "description": "Data line DQ7 for the in-package octal PSRAM/flash, powered by VDD_SPI or VDD3P3_CPU; usable as GPIO only if no 8-line SPI memory is connected."
      },
      {
        "number": "42",
        "name": "GPIO37",
        "type": "bidirectional",
        "description": "Data strobe/data mask (DQS/DM) for the in-package octal memory, powered by VDD_SPI or VDD3P3_CPU; usable as GPIO only if no 8-line SPI memory is connected."
      },
      {
        "number": "43",
        "name": "GPIO38",
        "type": "bidirectional",
        "description": "General-purpose IO powered by VDD3P3_CPU, with FSPIWP and SUBSPIWP functions."
      },
      {
        "number": "44",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "JTAG test clock (default function), powered by VDD3P3_CPU; can be reassigned to GPIO39 via IO MUX."
      },
      {
        "number": "45",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "JTAG test data out (default function), powered by VDD3P3_CPU; can be reassigned to GPIO40 via IO MUX."
      },
      {
        "number": "46",
        "name": "VDD3P3_CPU",
        "type": "power_in",
        "description": "Supply input for the digital power domain and digital IO pins."
      },
      {
        "number": "47",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "JTAG test data in (default function), powered by VDD3P3_CPU; can be reassigned to GPIO41 via IO MUX."
      },
      {
        "number": "48",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "JTAG test mode select (default function), powered by VDD3P3_CPU; can be reassigned to GPIO42 via IO MUX."
      },
      {
        "number": "49",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART0 transmit (default function) with weak pull-up at reset, powered by VDD3P3_CPU; can be reassigned to GPIO43."
      },
      {
        "number": "50",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART0 receive (default function) with weak pull-up at reset, powered by VDD3P3_CPU; can be reassigned to GPIO44."
      },
      {
        "number": "51",
        "name": "GPIO45",
        "type": "bidirectional",
        "description": "Strapping pin for VDD_SPI voltage selection, with weak pull-down at reset (default bit value 0)."
      },
      {
        "number": "52",
        "name": "GPIO46",
        "type": "bidirectional",
        "description": "Strapping pin for chip boot mode and ROM message printing, with weak pull-down at reset (default bit value 0)."
      },
      {
        "number": "53",
        "name": "XTAL_N",
        "type": "passive",
        "description": "Negative external clock input/output connected to the chip's crystal or oscillator."
      },
      {
        "number": "54",
        "name": "XTAL_P",
        "type": "passive",
        "description": "Positive external clock input/output connected to the chip's crystal or oscillator."
      },
      {
        "number": "55",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "56",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply input."
      },
      {
        "number": "57",
        "name": "GND",
        "type": "power_in",
        "description": "External ground connection."
      }
    ],
    "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 requested MPN ESP32-S3R2 is marked End of Life in the datasheet and was upgraded to ESP32-S3RH2 "
        ],
        "pages_sent": 52,
        "cost_usd": 0.1856,
        "at": "2026-10-27T23:36:14"
      },
      "datasheet": {
        "url": "https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf",
        "pages": 87,
        "sha256": "2d5a7cb7fd559d8d",
        "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-s3r2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.92
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a7e1b68d7c240016a0c468e633f7967f445758a90dea110c3eff24882158aaa8",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s3r2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.92
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "31e2c9498eaa07bc0d986e2312ac59216b83fb0427091d163c187d84c22d5163",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "56-VFQFN Exposed Pad",
      "Category": "RF and Wireless",
      "Pins": "57"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2d5a7cb7fd559d8d972bd88db32669c0196d23f22d7afaafb0f63d099b589a3f",
      "rows": [
        {
          "name": "Allowed input voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "Cumulative IO output current",
          "symbol": "Ioutput",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTORE",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "Recommended input voltage",
          "symbol": "VDDA, VDD3P3",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "VDD_SPI (as input)",
          "symbol": "VDD_SPI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "Cumulative input current",
          "symbol": "IVDD",
          "kind": "recommended_operating",
          "unit": "A",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 64,
          "source": "datasheet"
        },
        {
          "name": "Input current high-level",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "Input current low-level",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
        },
        {
          "name": "Differential nonlinearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Integral nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Sampling rate",
          "symbol": "",
          "kind": "electrical",
          "unit": "kSPS",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "ATTEN0, effective measurement range of 0 ~ 850",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "ATTEN1, effective measurement range of 0 ~ 1100",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "ATTEN2, effective measurement range of 0 ~ 1600",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Total error",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "ATTEN3, effective measurement range of 0 ~ 2900",
          "source_page": 66,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (1.8 V PSRAM)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 1.62,
          "typ": 1.8,
          "max": 1.98,
          "conditions": "",
          "source_page": 69,
          "source": "datasheet"
        },
        {
          "name": "Power supply voltage (3.3 V PSRAM)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 69,
          "source": "datasheet"
        },
        {
          "name": "Maximum clock frequency (PSRAM)",
          "symbol": "FC",
          "kind": "electrical",
          "unit": "MHz",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 69,
          "source": "datasheet"
        },
        {
          "name": "Time reserved for power rails to stabilize before CHIP_PU is pulled high",
          "symbol": "tSTBL",
          "kind": "timing",
          "unit": "µs",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "Time reserved for CHIP_PU to stay below VIL_nRST to reset the chip",
          "symbol": "tRST",
          "kind": "timing",
          "unit": "µs",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 30,
          "source": "datasheet"
        },
        {
          "name": "Pin capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 65,
          "source": "datasheet"
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