component
ESP8684H2X
Public Made by Adomby adom
Espressif Systems RF and Wireless, QFN-24-1EP_4x4mm_P0.5mm_EP2.8x2.8mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ESP8684H2X",
"brief": "Espressif Systems RF and Wireless, QFN-24-1EP_4x4mm_P0.5mm_EP2.8x2.8mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"mouser": "356-ESP8684H2X"
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"name": "ANT",
"type": "bidirectional",
"description": "RF input and output pin for the antenna."
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{
"number": "2",
"name": "VDDA3P3",
"type": "power_in",
"description": "Analog power domain supply input."
},
{
"number": "3",
"name": "VDDA3P3",
"type": "power_in",
"description": "Analog power domain supply input."
},
{
"number": "4",
"name": "GPIO0",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_RTC with ADC1_CH0 analog function and default drive strength of 20 mA."
},
{
"number": "5",
"name": "GPIO1",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_RTC with ADC1_CH1 analog function and default drive strength of 20 mA."
},
{
"number": "6",
"name": "GPIO2",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_RTC with input enabled at reset and ADC1_CH2 analog function; FSPIQ is available on function F2."
},
{
"number": "7",
"name": "CHIP_EN",
"type": "input",
"description": "High enables the chip (powered up) and low disables it (powered down); do not leave this pin floating."
},
{
"number": "8",
"name": "GPIO3",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_RTC with input enabled at reset and ADC1_CH3 analog function."
},
{
"number": "9",
"name": "MTMS",
"type": "bidirectional",
"description": "JTAG test mode select, powered by VDD3P3_RTC, with ADC1_CH4 analog function on GPIO4."
},
{
"number": "10",
"name": "MTDI",
"type": "bidirectional",
"description": "JTAG test data input, powered by VDD3P3_RTC."
},
{
"number": "11",
"name": "VDD3P3_RTC",
"type": "power_in",
"description": "Power input for the RTC and part of the digital power domains."
},
{
"number": "12",
"name": "MTCK",
"type": "bidirectional",
"description": "JTAG test clock, powered by VDD3P3_CPU."
},
{
"number": "13",
"name": "MTDO",
"type": "bidirectional",
"description": "JTAG test data output, powered by VDD3P3_CPU."
},
{
"number": "14",
"name": "GPIO8",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_CPU with input enabled at reset."
},
{
"number": "15",
"name": "GPIO9",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_CPU with input enabled and internal weak pull-up enabled after reset."
},
{
"number": "16",
"name": "GPIO10",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_CPU; FSPICS0 is available on function F2."
},
{
"number": "17",
"name": "VDD3P3_CPU",
"type": "power_in",
"description": "Power input for the digital power domain."
},
{
"number": "18",
"name": "GPIO18",
"type": "bidirectional",
"description": "IO pin powered by VDD3P3_CPU."
},
{
"number": "19",
"name": "U0RXD",
"type": "bidirectional",
"description": "UART0 receive data pin, powered by VDD3P3_CPU with input enabled and weak pull-up enabled after reset."
},
{
"number": "20",
"name": "U0TXD",
"type": "bidirectional",
"description": "UART0 transmit data pin, powered by VDD3P3_CPU with output enabled and weak pull-up enabled after reset."
},
{
"number": "21",
"name": "VDDA",
"type": "power_in",
"description": "Analog power domain supply input."
},
{
"number": "22",
"name": "XTAL_N",
"type": "passive",
"description": "External clock input/output connected to the crystal or oscillator (negative side of differential clock)."
},
{
"number": "23",
"name": "XTAL_P",
"type": "passive",
"description": "External clock input/output connected to the crystal or oscillator (positive side of differential clock)."
},
{
"number": "24",
"name": "VDDA",
"type": "power_in",
"description": "Analog power domain supply input."
},
{
"number": "25",
"name": "GND",
"type": "power_in",
"description": "External ground connection."
}
],
"provenance": {
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"factory_chain": {
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"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": [
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"extractor flagged: The datasheet lists VDDA pins 21 and 24 as Power in Table 2 and Table 8 (Input, analog power domain)"
],
"pages_sent": 27,
"cost_usd": 0.0633,
"at": "2026-10-29T06:21:15"
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"url": "https://www.espressif.com/sites/default/files/documentation/esp8684_datasheet_en.pdf",
"pages": 60,
"sha256": "5d5e6894fbcd9ab5",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
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"metadata": {
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"Package": "QFN-24-1EP_4x4mm_P0.5mm_EP2.8x2.8mm",
"Category": "RF and Wireless",
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{
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{
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{
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"email": "[email protected]"
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