ESP32-H2FH4

{
  "schema_version": 1,
  "type": "component",
  "slug": "esp32-h2fh4",
  "title": "ESP32-H2FH4",
  "brief": "Espressif Systems Microcontrollers (MCU/MPU/SOC), QFN-32(4x4). 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",
    "embedded processors & controllers",
    "esp32-h2fh4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ESP32-H2FH4",
    "manufacturer": "Espressif Systems",
    "package": "QFN-32(4x4)",
    "pin_count": 33,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603195712637186048",
    "parts": {
      "symbol": "esp32-h2fh4.kicad_sym",
      "footprint": "esp32-h2fh4.kicad_mod",
      "model_3d": "esp32-h2fh4-hero.glb",
      "model_3d_plain": "esp32-h2fh4.glb",
      "model_3d_step": "esp32-h2fh4-etched.step",
      "model_3d_step_plain": "esp32-h2fh4.step",
      "lbr": "esp32-h2fh4.lbr"
    },
    "distributor_links": {
      "lcsc": "C22470214",
      "mouser": "356-ESP32-H2FH4"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T21:28:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 550 calls left today"
      },
      "mouser": {
        "pn": "356-ESP32-H2FH4",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0-3.6 V (3.3 V typical), with absolute maximum input voltage of -0.3 to 3.6 V."
      },
      {
        "number": "2",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0-3.6 V (3.3 V typical), with absolute maximum input voltage of -0.3 to 3.6 V."
      },
      {
        "number": "3",
        "name": "GPIO0",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST1 digital IO domain, selectable via IO MUX (F0 GPIO0, F1 FSPIQ via SPI2); it cannot operate in Deep-sleep mode and can only operate in Light-sleep if the XPD_TOP power domain stays powered."
      },
      {
        "number": "4",
        "name": "GPIO1",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST1 digital IO domain, also serving as ADC1 channel 0 analog input and FSPICS0 SPI2 chip select via IO MUX; it cannot operate in Deep-sleep mode."
      },
      {
        "number": "5",
        "name": "MTMS",
        "type": "bidirectional",
        "description": "JTAG test mode select on the VDDPST1 IO domain (alternate function GPIO2, ADC1 channel 1), with input enabled at reset."
      },
      {
        "number": "6",
        "name": "MTDO",
        "type": "bidirectional",
        "description": "JTAG test data output on the VDDPST1 IO domain (alternate function GPIO3, ADC1 channel 2), with input enabled at reset."
      },
      {
        "number": "7",
        "name": "MTCK",
        "type": "bidirectional",
        "description": "JTAG test clock input on the VDDPST1 IO domain (alternate function GPIO4, ADC1 channel 3); its input enable is marked with a footnote in the pin table, see chapter 2."
      },
      {
        "number": "8",
        "name": "MTDI",
        "type": "bidirectional",
        "description": "JTAG test data input on the VDDPST1 IO domain (alternate function GPIO5, ADC1 channel 4), with input enabled at reset."
      },
      {
        "number": "9",
        "name": "VDDPST1",
        "type": "power_in",
        "description": "IO power domain supply for digital IO and LP IO pins, recommended 3.0-3.6 V (3.3 V typical)."
      },
      {
        "number": "10",
        "name": "GPIO8",
        "type": "bidirectional",
        "description": "Strapping pin sampled at reset that, together with GPIO9, selects the boot mode and also controls UART0 ROM log printing; it is floating by default and is an LP IO."
      },
      {
        "number": "11",
        "name": "GPIO9",
        "type": "bidirectional",
        "description": "Strapping pin sampled at reset that, together with GPIO8, selects the boot mode (weak pull-up by default, so it reads 1 unless driven low externally)."
      },
      {
        "number": "12",
        "name": "GPIO10",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST1 IO domain, also serving as analog pad voltage comparator input ZCD0."
      },
      {
        "number": "13",
        "name": "GPIO11",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST1 IO domain, also serving as analog pad voltage comparator input ZCD1."
      },
      {
        "number": "14",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "LP general-purpose I/O powered from the VDDA_PMU/VBAT domain, usable in any chip power mode."
      },
      {
        "number": "15",
        "name": "XTAL_32K_P",
        "type": "bidirectional",
        "description": "Positive terminal of the external 32 kHz crystal (or external slow clock input, default 32 kHz), powered from the VDDA_PMU/VBAT domain."
      },
      {
        "number": "16",
        "name": "XTAL_32K_N",
        "type": "bidirectional",
        "description": "Negative terminal of the external 32 kHz crystal, powered from the VDDA_PMU/VBAT domain."
      },
      {
        "number": "17",
        "name": "CHIP_EN",
        "type": "input",
        "description": "Chip enable: high powers up the chip and low powers it down/resets it, with a VIH of 0.75×VDD to VDD+0.3 V and must not be left floating."
      },
      {
        "number": "18",
        "name": "VBAT",
        "type": "power_in",
        "description": "Supply input for the analog power domain or battery power, feeding GPIO12, XTAL_32K_P and XTAL_32K_N."
      },
      {
        "number": "19",
        "name": "VDDA_PMU",
        "type": "power_in",
        "description": "Analog power domain supply input for the power management unit, feeding GPIO12, XTAL_32K_P and XTAL_32K_N."
      },
      {
        "number": "20",
        "name": "VDDPST2",
        "type": "power_in",
        "description": "IO power domain supply for digital IO pins GPIO22 through GPIO27, recommended 3.0-3.6 V; when writing eFuse it must not exceed 3.3 V."
      },
      {
        "number": "21",
        "name": "GPIO22",
        "type": "bidirectional",
        "description": "General-purpose digital I/O on the VDDPST2 IO domain; it cannot operate in Deep-sleep mode."
      },
      {
        "number": "22",
        "name": "U0RXD",
        "type": "bidirectional",
        "description": "UART0 receive signal on the VDDPST2 IO domain (alternate function GPIO23), with input enabled and weak pull-up at reset."
      },
      {
        "number": "23",
        "name": "U0TXD",
        "type": "bidirectional",
        "description": "UART0 transmit signal on the VDDPST2 IO domain (alternate function GPIO24), with input enabled and weak pull-up at reset."
      },
      {
        "number": "24",
        "name": "GPIO25",
        "type": "bidirectional",
        "description": "Strapping pin sampled at reset that controls the JTAG signal source; it has no internal pull-up or pull-down and must be driven by an external circuit that is not high-impedance."
      },
      {
        "number": "25",
        "name": "GPIO26",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST2 IO domain that doubles as USB_D- for the USB Serial/JTAG controller; its default drive current is 40 mA."
      },
      {
        "number": "26",
        "name": "GPIO27",
        "type": "bidirectional",
        "description": "General-purpose I/O on the VDDPST2 IO domain that doubles as USB_D+ for the USB Serial/JTAG controller, with USB pull-up enabled by default; its default drive current is 40 mA."
      },
      {
        "number": "27",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0-3.6 V (3.3 V typical), with absolute maximum input voltage of -0.3 to 3.6 V."
      },
      {
        "number": "28",
        "name": "XTAL_N",
        "type": "passive",
        "description": "Negative terminal of the external 32 MHz crystal (active or passive); the chip cannot operate without an external crystal clock."
      },
      {
        "number": "29",
        "name": "XTAL_P",
        "type": "passive",
        "description": "Positive terminal of the external 32 MHz crystal (active or passive); the chip cannot operate without an external crystal clock."
      },
      {
        "number": "30",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0-3.6 V (3.3 V typical), with absolute maximum input voltage of -0.3 to 3.6 V."
      },
      {
        "number": "31",
        "name": "VDD3P3",
        "type": "power_in",
        "description": "Analog power domain supply input, recommended 3.0-3.6 V (3.3 V typical), with absolute maximum input voltage of -0.3 to 3.6 V."
      },
      {
        "number": "32",
        "name": "ANT",
        "type": "bidirectional",
        "description": "RF input and output pin for the 2.4 GHz antenna."
      },
      {
        "number": "33",
        "name": "GND",
        "type": "power_in",
        "description": "External ground reference pin."
      }
    ],
    "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: Pin 20 is named VDDPST1 in Table 2-1 and Appendix A, but VDDPST2 in Table 2-7, Figure 2-1 and the pi; The datasheet describes VDD3P3 with a recommended range of 3.0-3.6 V in Table 5-2 (page 50), not on ; XTAL_N and XTAL_P are analog oscillator pins; ERC type 'passive' was chosen since the datasheet only"
        ],
        "pages_sent": 50,
        "cost_usd": 0.2024,
        "at": "2026-10-09T21:26:30"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603195712637186048",
        "pages": 63,
        "sha256": "86a469824007b789",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "esp32-h2fh4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esp32-h2fh4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6b1317b5ccc111e702e2d484508e55337fc083fd4ceaac7715877743120d617d",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Espressif Systems",
      "Package": "QFN-32(4x4)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "33"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "esp32-h2fh4"
  ],
  "discovery_pitch": "ESP32-H2FH4 (Espressif Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esp32-h2fh4.kicad_sym",
    "esp32-h2fh4.kicad_mod",
    "esp32-h2fh4.glb",
    "esp32-h2fh4.step",
    "esp32-h2fh4.lbr",
    "docs/hero.png",
    "docs/esp32-h2fh4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esp32-h2fh4-hero.glb",
    "esp32-h2fh4-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}