ESP32-S3

{
  "slug": "esp32-s3",
  "version": "0.1.0",
  "type": "component",
  "description": "Espressif Systems RF Transceiver ICs, QFN-56-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "esp32-s3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-s3.kicad_sym",
    "esp32-s3.kicad_mod",
    "esp32-s3.glb",
    "esp32-s3.step",
    "esp32-s3.lbr",
    "docs/hero.png",
    "docs/esp32-s3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp32-s3-hero.glb",
    "esp32-s3-hero.overlay.json",
    "esp32-s3-etched.glb"
  ],
  "component": {
    "mpn": "ESP32-S3",
    "manufacturer": "Espressif Systems",
    "package": "QFN-56-EP(7x7)",
    "pin_count": 57,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8708768114436325376",
    "parts": {
      "symbol": "esp32-s3.kicad_sym",
      "footprint": "esp32-s3.kicad_mod",
      "model_3d": "esp32-s3-hero.glb",
      "model_3d_plain": "esp32-s3-etched.glb",
      "model_3d_step": "esp32-s3-etched.step",
      "model_3d_step_plain": "esp32-s3.step",
      "lbr": "esp32-s3.lbr"
    },
    "distributor_links": {
      "lcsc": "C2913192",
      "digikey": "1965-ESP32-S3-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:11:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1965-ESP32-S3-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LNA_IN",
        "type": "passive",
        "description": "RF low-noise amplifier input/output signal."
      },
      {
        "number": "2",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0 V to 3.6 V with 3.3 V typical."
      },
      {
        "number": "3",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0 V to 3.6 V with 3.3 V typical."
      },
      {
        "number": "4",
        "name": "CHIP_PU",
        "type": "input",
        "description": "High level enables the chip and low level powers it down; the pin must not be left floating."
      },
      {
        "number": "5",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O and RTC_GPIO0; strapping pin with GPIO46 that selects the boot mode, with a default weak pull-up."
      },
      {
        "number": "6",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO1, TOUCH1 and ADC1_CH0 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "7",
        "name": "GPIO2",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO2, TOUCH2 and ADC1_CH1 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "8",
        "name": "GPIO3",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO3, TOUCH3 and ADC1_CH2 functions; strapping pin for JTAG signal source selection with no internal pull resistor, so it must be driven by an external circuit that is not high-impedance."
      },
      {
        "number": "9",
        "name": "GPIO4",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO4, TOUCH4 and ADC1_CH3 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "10",
        "name": "GPIO5",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO5, TOUCH5 and ADC1_CH4 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "11",
        "name": "GPIO6",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO6, TOUCH6 and ADC1_CH5 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "12",
        "name": "GPIO7",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO7, TOUCH7 and ADC1_CH6 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "13",
        "name": "GPIO8",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO8, TOUCH8 and ADC1_CH7 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "14",
        "name": "GPIO9",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO9, TOUCH9 and ADC1_CH8 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "15",
        "name": "GPIO10",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO10, TOUCH10 and ADC1_CH9 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "16",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO11, TOUCH11 and ADC2_CH0 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "17",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO12, TOUCH12 and ADC2_CH1 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "18",
        "name": "GPIO13",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO13, TOUCH13 and ADC2_CH2 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "19",
        "name": "GPIO14",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO14, TOUCH14 and ADC2_CH3 functions; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "20",
        "name": "VDD3P3_RTC",
        "type": "power_in",
        "description": "Supply for the RTC and part of the digital power domain, recommended 3.0 V to 3.6 V with 3.3 V typical."
      },
      {
        "number": "21",
        "name": "XTAL_32K_P",
        "type": "bidirectional",
        "description": "Positive terminal of the external 32 kHz clock, also GPIO15/RTC_GPIO15 and ADC2_CH4; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "22",
        "name": "XTAL_32K_N",
        "type": "bidirectional",
        "description": "Negative terminal of the external 32 kHz clock, also GPIO16/RTC_GPIO16 and ADC2_CH5; may output a low-level glitch of about 60 µs at power-up."
      },
      {
        "number": "23",
        "name": "GPIO17",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO17, ADC2_CH6 and UART1 TXD function, with a default drive current of 10 mA."
      },
      {
        "number": "24",
        "name": "GPIO18",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO18, ADC2_CH7 and UART1 RXD function, with a default drive current of 10 mA."
      },
      {
        "number": "25",
        "name": "GPIO19",
        "type": "bidirectional",
        "description": "General-purpose I/O that doubles as USB_D- (with RTC_GPIO19 and ADC2_CH8), with a default drive current of 40 mA."
      },
      {
        "number": "26",
        "name": "GPIO20",
        "type": "bidirectional",
        "description": "General-purpose I/O that doubles as USB_D+ (with RTC_GPIO20 and ADC2_CH9), with a default drive current of 40 mA and USB pull-up enabled by default."
      },
      {
        "number": "27",
        "name": "GPIO21",
        "type": "bidirectional",
        "description": "General-purpose I/O with RTC_GPIO21 function, powered from VDD3P3_RTC."
      },
      {
        "number": "28",
        "name": "SPICS1",
        "type": "bidirectional",
        "description": "SPI chip-select 1 (GPIO26) used to connect the in-package PSRAM chip enable; it is powered from VDD_SPI, and the datasheet advises not to use the flash/PSRAM-connected pins for other purposes."
      },
      {
        "number": "29",
        "name": "VDD_SPI",
        "type": "power_out",
        "description": "Supply for the in-package memory and flash/PSRAM SPI I/O; it can also be configured as an input from VDD3P3_RTC, with the voltage set by eFuse and strapping as described in the datasheet."
      },
      {
        "number": "30",
        "name": "SPIHD",
        "type": "bidirectional",
        "description": "SPI hold signal (GPIO27) connected to flash HOLD# or PSRAM SIO3, powered from VDD_SPI."
      },
      {
        "number": "31",
        "name": "SPIWP",
        "type": "bidirectional",
        "description": "SPI write-protect signal (GPIO28) connected to flash WP# or PSRAM SIO2, powered from VDD_SPI."
      },
      {
        "number": "32",
        "name": "SPICS0",
        "type": "bidirectional",
        "description": "SPI chip-select 0 (GPIO29) connected to the in-package flash CS#, powered from VDD_SPI."
      },
      {
        "number": "33",
        "name": "SPICLK",
        "type": "bidirectional",
        "description": "SPI clock (GPIO30) connected to flash/PSRAM CLK, powered from VDD_SPI."
      },
      {
        "number": "34",
        "name": "SPIQ",
        "type": "bidirectional",
        "description": "SPI data output (GPIO31) connected to flash DO or PSRAM SO/SIO1, powered from VDD_SPI."
      },
      {
        "number": "35",
        "name": "SPID",
        "type": "bidirectional",
        "description": "SPI data input (GPIO32) connected to flash DI or PSRAM SI/SIO0, powered from VDD_SPI."
      },
      {
        "number": "36",
        "name": "SPICLK_N",
        "type": "bidirectional",
        "description": "Negative differential SPI clock (also GPIO48) for octal SPI, powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "37",
        "name": "SPICLK_P",
        "type": "bidirectional",
        "description": "Positive differential SPI clock (also GPIO47) for octal SPI, powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "38",
        "name": "GPIO33",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPIHD, SUBSPIHD and SPIIO4), powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "39",
        "name": "GPIO34",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPICS0, SUBSPICS0 and SPIIO5), powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "40",
        "name": "GPIO35",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPID, SUBSPID and SPIIO6), powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "41",
        "name": "GPIO36",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPICLK, SUBSPICLK and SPIIO7), powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "42",
        "name": "GPIO37",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPIQ, SUBSPIQ and SPIDQS), powered from VDD_SPI or VDD3P3_CPU as selected by eFuse."
      },
      {
        "number": "43",
        "name": "GPIO38",
        "type": "bidirectional",
        "description": "General-purpose I/O (also FSPIWP and SUBSPIWP), powered from VDD3P3_CPU."
      },
      {
        "number": "44",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "JTAG test clock (also GPIO39, CLK_OUT3 and SUBSPICS1), powered from VDD3P3_CPU with input enabled."
      },
      {
        "number": "45",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "JTAG test data output (also GPIO40 and CLK_OUT2), powered from VDD3P3_CPU."
      },
      {
        "number": "46",
        "name": "VDD3P3_CPU",
        "type": "power_in",
        "description": "Digital power domain supply, recommended 3.0 V to 3.6 V with 3.3 V typical; the datasheet says it must not exceed 3.3 V when writing eFuse."
      },
      {
        "number": "47",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "JTAG test data input (also GPIO41 and CLK_OUT1), powered from VDD3P3_CPU."
      },
      {
        "number": "48",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "JTAG test mode select (also GPIO42), powered from VDD3P3_CPU."
      },
      {
        "number": "49",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART0 transmit (also GPIO43 and CLK_OUT1), powered from VDD3P3_CPU with a default weak pull-up."
      },
      {
        "number": "50",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART0 receive (also GPIO44 and CLK_OUT2), powered from VDD3P3_CPU with a default weak pull-up."
      },
      {
        "number": "51",
        "name": "GPIO45",
        "type": "bidirectional",
        "description": "General-purpose I/O and strapping pin that sets the VDD_SPI voltage, with a default weak pull-down."
      },
      {
        "number": "52",
        "name": "GPIO46",
        "type": "bidirectional",
        "description": "General-purpose I/O and strapping pin that works with GPIO0 for boot mode and controls ROM log printing, with a default weak pull-down."
      },
      {
        "number": "53",
        "name": "XTAL_N",
        "type": "passive",
        "description": "Negative side of the external clock input/output for an active or passive crystal."
      },
      {
        "number": "54",
        "name": "XTAL_P",
        "type": "passive",
        "description": "Positive side of the external clock input/output for an active or passive crystal."
      },
      {
        "number": "55",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply, recommended 3.0 V to 3.6 V with 3.3 V typical."
      },
      {
        "number": "56",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog power domain supply, recommended 3.0 V to 3.6 V with 3.3 V typical."
      },
      {
        "number": "57",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, connected to the exposed pad of the QFN56 package."
      }
    ],
    "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 match: the datasheet describes a single QFN56 (7×7 mm) package for ESP32-S3 (pin 57 GND, sho; Datasheet source is in Chinese; pin names come from Table 2-1 and Appendix A and were kept as printe; VDD_SPI (pin 29) is listed as both input and output in Table 2-10; it was typed power_out because it"
        ],
        "pages_sent": 65,
        "cost_usd": 0.3172,
        "at": "2026-10-18T20:08:56"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8708768114436325376",
        "pages": 79,
        "sha256": "97b4b3199f87c43f",
        "source_tier": "lcsc"
      },
      "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-s3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.885
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b42d9b0c7a8d55564f4e9bb74be3ab877d958a268411c07a496787496cfb1b99",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-s3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.885
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f02cdd7b02f2954bc6cbb9fcb73b8e89e91121f12f325f9221cec24bd2fe50a4",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}