component
CJC6811A
Public Made by Adomby adom
ESHINE Microcontroller Units (MCUs/MPUs/SOCs), QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Ray
Set visibility: public
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{
"schema_version": 1,
"type": "component",
"slug": "cjc6811a",
"title": "CJC6811A",
"brief": "ESHINE Microcontroller Units (MCUs/MPUs/SOCs), QFN-32(5x5). 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",
"single chip microcomputer-microcontroller",
"cjc6811a",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "CJC6811A",
"manufacturer": "ESHINE",
"package": "QFN-32(5x5)",
"pin_count": 33,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/15f8aa0f869c4b0b4914520f10a01eb3.pdf",
"parts": {
"symbol": "cjc6811a.kicad_sym",
"footprint": "cjc6811a.kicad_mod",
"model_3d": "cjc6811a-hero.glb",
"model_3d_plain": "cjc6811a.glb",
"model_3d_step": "cjc6811a-etched.step",
"model_3d_step_plain": "cjc6811a.step",
"lbr": "cjc6811a.lbr"
},
"distributor_links": {
"lcsc": "C7431488"
},
"distributor_check": {
"checked_at": "2026-11-12T19:27:36Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "UART_TX",
"type": "bidirectional",
"description": "UART transmitter, also available as GPIO6."
},
{
"number": "2",
"name": "FLS_SO",
"type": "bidirectional",
"description": "SPI data output for boot flash."
},
{
"number": "3",
"name": "MCU_SPIB_SO",
"type": "bidirectional",
"description": "MCU SPI data output for boot flash (diagram label SPIB_SO)."
},
{
"number": "4",
"name": "MCU_SPIB_CSN",
"type": "bidirectional",
"description": "MCU SPI chip select for boot flash."
},
{
"number": "5",
"name": "FLS_SI",
"type": "bidirectional",
"description": "SPI data line for boot flash; the table comment says data out, which conflicts with the pin name."
},
{
"number": "6",
"name": "VDD33",
"type": "power_in",
"description": "Power supply for IO; the IO voltage is taken from VDD33 and can range from 2.8V to 3.6V."
},
{
"number": "7",
"name": "SPIB_CLK",
"type": "bidirectional",
"description": "SPI clock for boot flash (diagram label SPIB_SCK)."
},
{
"number": "8",
"name": "SPIB_SI",
"type": "bidirectional",
"description": "SPI data input for boot flash."
},
{
"number": "9",
"name": "DVDD18",
"type": "power_out",
"description": "1.8V regulator output for IO, normally 2.2V as stated in the table."
},
{
"number": "10",
"name": "GPIO3",
"type": "bidirectional",
"description": "General-purpose IO GPIO3."
},
{
"number": "11",
"name": "CLK_XTALa",
"type": "bidirectional",
"description": "12MHz oscillator input, default not connected."
},
{
"number": "12",
"name": "FLS_VDD33",
"type": "power_in",
"description": "Power supply for IO on the flash interface."
},
{
"number": "13",
"name": "BOOTMODE",
"type": "bidirectional",
"description": "Boot mode select, default tied to VDD33."
},
{
"number": "14",
"name": "GPIO0",
"type": "bidirectional",
"description": "General-purpose IO GPIO0, also the PWM output."
},
{
"number": "15",
"name": "GPIO2",
"type": "bidirectional",
"description": "General-purpose IO GPIO2."
},
{
"number": "16",
"name": "VDD33",
"type": "power_in",
"description": "Power supply for IO."
},
{
"number": "17",
"name": "VSSIO0",
"type": "power_in",
"description": "Ground for IO."
},
{
"number": "18",
"name": "AVDD",
"type": "power_in",
"description": "Power supply for analog circuits except the headphone driver."
},
{
"number": "19",
"name": "AVDD_HP",
"type": "power_in",
"description": "Power supply for the headphone analog circuits."
},
{
"number": "20",
"name": "MIC_BIAS",
"type": "output",
"description": "Microphone bias output."
},
{
"number": "21",
"name": "MIC_IN",
"type": "input",
"description": "Microphone input."
},
{
"number": "22",
"name": "ADC_IN",
"type": "input",
"description": "ADC analog input (one channel)."
},
{
"number": "23",
"name": "RESETB",
"type": "bidirectional",
"description": "Chip reset, active low."
},
{
"number": "24",
"name": "PGND",
"type": "power_in",
"description": "Ground for analog circuits."
},
{
"number": "25",
"name": "HP_L",
"type": "output",
"description": "Left headphone output."
},
{
"number": "26",
"name": "HP_VCOM",
"type": "output",
"description": "Headphone voltage reference."
},
{
"number": "27",
"name": "HP_R",
"type": "output",
"description": "Right headphone output."
},
{
"number": "28",
"name": "Codec_Vmid",
"type": "output",
"description": "Codec voltage reference."
},
{
"number": "29",
"name": "DVDD18",
"type": "power_out",
"description": "1.8V regulator output for IO, normally 2.2V as stated in the table."
},
{
"number": "30",
"name": "USB_DM",
"type": "bidirectional",
"description": "USB D- data line."
},
{
"number": "31",
"name": "USB_DP",
"type": "bidirectional",
"description": "USB D+ data line."
},
{
"number": "32",
"name": "DVDD33",
"type": "power_in",
"description": "Power supply for the USB PHY."
},
{
"number": "33",
"name": "GND/VSS",
"type": "power_in",
"description": "Digital ground; likely the exposed pad, shown as the centre ground in the diagram."
}
],
"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 33 (GND/VSS) is listed beyond the 32-lead count and is shown as the centre ground in the pin dia"
],
"pages_sent": 7,
"cost_usd": 0.001,
"at": "2026-11-12T19:27:29"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/15f8aa0f869c4b0b4914520f10a01eb3.pdf",
"pages": 91,
"sha256": "e1df8708ea3c5f2a",
"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": [
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"file": "cjc6811a.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-11-12",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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"role": "eda",
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"checked": "2026-11-12",
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}
],
"package_dims": {
"package_code": "QFN5*5-32",
"source_page": 90,
"D": {
"nom_mm": 5,
"range_mm": [
4.9,
5.1
]
},
"E1": {
"nom_mm": 5,
"range_mm": [
4.9,
5.1
]
},
"A": {
"nom_mm": 0.8,
"range_mm": [
0.7,
0.9
]
},
"source": "reviewer dims decision (part-reviewer (ray review), cjc6811a.dims.json)",
"model_check": {
"file": "cjc6811a.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "ESHINE",
"Package": "QFN-32(5x5)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "e1df8708ea3c5f2af41288c5cf0bcf83aed2e9d7459a15fc256b7a2faa670c86",
"rows": [
{
"name": "Digital supply range (Core)",
"symbol": "AVDD_HP",
"kind": "recommended_operating",
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"min": 2.8,
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"max": 3.6,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Digital supply range (Buffer)",
"symbol": "VDD33",
"kind": "recommended_operating",
"unit": "V",
"min": 8.8,
"typ": 3.3,
"max": 3.6,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Analogue supply range",
"symbol": "AVDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.8,
"typ": 3.3,
"max": 3.6,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Ground",
"symbol": "GND,PGND,VSSIO0",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": 0,
"max": null,
"conditions": "",
"source_page": 9,
"source": "datasheet"
},
{
"name": "Digital supply voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Analogue supply voltage",
"symbol": "",
"kind": "absolute_maximum",
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"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Voltage range digital inputs",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "VSSIO0",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Voltage range analogue inputs",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "GND",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 8,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
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"breadcrumbs",
"info"
],
"discovery_triggers": [
"cjc6811a"
],
"discovery_pitch": "CJC6811A (ESHINE) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
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},
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"visibility": {
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}