component
KSZ8794CNXCC
Public Made by Adomby adom
Microchip Tech Ethernet ICs, QFN-64-EP(8x8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "ksz8794cnxcc",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Ethernet ICs, QFN-64-EP(8x8). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"ksz8794cnxcc",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
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"component": {
"mpn": "KSZ8794CNXCC",
"manufacturer": "Microchip Tech",
"package": "QFN-64-EP(8x8)",
"pin_count": 65,
"category": "Interface ICs",
"subcategory": "Ethernet ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/baa75dd88ac85e471d21f4f907510881.pdf",
"parts": {
"symbol": "ksz8794cnxcc.kicad_sym",
"footprint": "ksz8794cnxcc.kicad_mod",
"model_3d": "ksz8794cnxcc-hero.glb",
"model_3d_plain": "ksz8794cnxcc-etched.glb",
"model_3d_step": "ksz8794cnxcc-etched.step",
"model_3d_step_plain": "ksz8794cnxcc.step",
"lbr": "ksz8794cnxcc.lbr"
},
"distributor_links": {
"lcsc": "C633468",
"digikey": "576-4851-ND",
"mouser": "998-KSZ8794CNXCC"
},
"distributor_check": {
"checked_at": "2026-10-30T20:55:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "576-4851-ND",
"status": "found",
"lifecycle": "Active"
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"mouser": {
"pn": "998-KSZ8794CNXCC",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "VDD12A",
"type": "power_in",
"description": "1.2V core power."
},
{
"number": "2",
"name": "VDDAT",
"type": "power_in",
"description": "3.3V or 2.5V analog power."
},
{
"number": "3",
"name": "GNDA",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "4",
"name": "RXP1",
"type": "input",
"description": "Port 1 physical receive signal + (differential)."
},
{
"number": "5",
"name": "RXM1",
"type": "input",
"description": "Port 1 physical receive signal - (differential)."
},
{
"number": "6",
"name": "TXP1",
"type": "output",
"description": "Port 1 physical transmit signal + (differential)."
},
{
"number": "7",
"name": "TXM1",
"type": "output",
"description": "Port 1 physical transmit signal - (differential)."
},
{
"number": "8",
"name": "RXP2",
"type": "input",
"description": "Port 2 physical receive signal + (differential)."
},
{
"number": "9",
"name": "RXM2",
"type": "input",
"description": "Port 2 physical receive signal - (differential)."
},
{
"number": "10",
"name": "TXP2",
"type": "output",
"description": "Port 2 physical transmit signal + (differential)."
},
{
"number": "11",
"name": "TXM2",
"type": "output",
"description": "Port 2 physical transmit signal - (differential)."
},
{
"number": "12",
"name": "VDDAT",
"type": "power_in",
"description": "3.3V or 2.5V analog power."
},
{
"number": "13",
"name": "RXP3",
"type": "input",
"description": "Port 3 physical receive signal + (differential)."
},
{
"number": "14",
"name": "RXM3",
"type": "input",
"description": "Port 3 physical receive signal - (differential)."
},
{
"number": "15",
"name": "TXP3",
"type": "output",
"description": "Port 3 physical transmit signal + (differential)."
},
{
"number": "16",
"name": "TXM3",
"type": "output",
"description": "Port 3 physical transmit signal - (differential)."
},
{
"number": "17",
"name": "GNDA",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "18",
"name": "INTR_N",
"type": "output",
"description": "Active-low open-drain interrupt output; needs an external pull-up resistor when in use."
},
{
"number": "19",
"name": "LED3_1",
"type": "bidirectional",
"description": "Port 3 LED indicator 1 (internal pull-up during reset); strap with LED3_0 selects Port 4 GMAC4 mode: 00=MII, 01=RMII, 10=Reserved, 11=RGMII (default)."
},
{
"number": "20",
"name": "LED3_0",
"type": "bidirectional",
"description": "Port 3 LED indicator 0 (internal pull-up during reset); strap option, see LED3_1 for GMAC4 interface mode select."
},
{
"number": "21",
"name": "VDD12D",
"type": "power_in",
"description": "1.2V core power."
},
{
"number": "22",
"name": "GNDD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "23",
"name": "TXEN4/TXD4_CTL",
"type": "input",
"description": "Port 4 transmit enable in MII/RMII, transmit data control in RGMII; internal pull-down."
},
{
"number": "24",
"name": "TXD4_0",
"type": "input",
"description": "Port 4 switch transmit bit [0] for RGMII/MII/RMII; internal pull-down."
},
{
"number": "25",
"name": "TXD4_1",
"type": "input",
"description": "Port 4 switch transmit bit [1] for RGMII/MII/RMII; internal pull-down."
},
{
"number": "26",
"name": "GNDD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "27",
"name": "VDDIO",
"type": "power_in",
"description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
},
{
"number": "28",
"name": "TXD4_2",
"type": "input",
"description": "Port 4 switch transmit bit [2] for RGMII/MII; no connection in RMII; internal pull-down."
},
{
"number": "29",
"name": "TXD4_3",
"type": "input",
"description": "Port 4 switch transmit bit [3] for RGMII/MII; no connection in RMII; internal pull-down."
},
{
"number": "30",
"name": "TXER4",
"type": "input",
"description": "Port 4 switch transmit error in MII; no connection in RGMII/RMII; internal pull-down."
},
{
"number": "31",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "32",
"name": "GNDD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "33",
"name": "VDD12D",
"type": "power_in",
"description": "1.2V core power."
},
{
"number": "34",
"name": "TXC4/REFCLKI4/GTXC4",
"type": "bidirectional",
"description": "Port 4 GMAC4 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz clock input in normal mode, RGMII 125 MHz clock input."
},
{
"number": "35",
"name": "RXC4/GRXC4",
"type": "bidirectional",
"description": "Port 4 GMAC4 clock: MII 2.5/25 MHz (output in PHY mode, input in MAC mode), RMII 50 MHz reference clock output in clock mode, RGMII 125 MHz clock output."
},
{
"number": "36",
"name": "RXD4_0",
"type": "bidirectional",
"description": "Port 4 switch receive bit [0] for RGMII/MII/RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "37",
"name": "RXD4_1",
"type": "bidirectional",
"description": "Port 4 switch receive bit [1] for RGMII/MII/RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "38",
"name": "GNDD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "39",
"name": "VDDIO",
"type": "power_in",
"description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
},
{
"number": "40",
"name": "RXD4_2",
"type": "bidirectional",
"description": "Port 4 switch receive bit [2] for RGMII/MII; no connection in RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "41",
"name": "RXD4_3",
"type": "bidirectional",
"description": "Port 4 switch receive bit [3] for RGMII/MII; no connection in RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "42",
"name": "RXDV4/CRSDV4/RXD4_CTL",
"type": "bidirectional",
"description": "Port 4 receive data valid (MII), carrier sense/receive data valid (RMII), or receive data control (RGMII); input with internal pull-down during reset, output otherwise."
},
{
"number": "43",
"name": "RXER4",
"type": "bidirectional",
"description": "Port 4 switch receive error in MII; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "44",
"name": "CRS4",
"type": "bidirectional",
"description": "Port 4 MII carrier sense; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "45",
"name": "COL4",
"type": "bidirectional",
"description": "Port 4 MII collision detect; no connection in RGMII/RMII; input with internal pull-down during reset, output otherwise."
},
{
"number": "46",
"name": "REFCLKO",
"type": "bidirectional",
"description": "25 MHz clock output (optional), enabled by default and controlled by strap pin LED2_0; better disabled if unused."
},
{
"number": "47",
"name": "PME_N",
"type": "bidirectional",
"description": "Power management event signal indicating a Wake-on-LAN event was detected; polarity programmable, default active low."
},
{
"number": "48",
"name": "LED2_1",
"type": "bidirectional",
"description": "Port 2 LED indicator 1; strap selects Port 4 MII mode (PU=MAC, PD=PHY) or RMII mode (PU=clock mode providing 50 MHz from RXC4, PD=normal mode with external 50 MHz clock)."
},
{
"number": "49",
"name": "LED2_0",
"type": "bidirectional",
"description": "Port 2 LED indicator 0; strap enables REFCLKO 25 MHz output (PU=enabled default, PD=disabled)."
},
{
"number": "50",
"name": "LED1_1",
"type": "bidirectional",
"description": "Port 1 LED indicator 1; strap selects PLL clock source (PU=25 MHz XI/XO clock, PD=external clock from TXC4 in Port 4 RMII normal mode)."
},
{
"number": "51",
"name": "LED1_0",
"type": "bidirectional",
"description": "Port 1 LED indicator 0; strap selects RGMII speed (PU=1 Gbps default, PD=10/100 Mbps)."
},
{
"number": "52",
"name": "SPIQ",
"type": "bidirectional",
"description": "SPI serial data output in SPI slave mode; strap selects serial bus (PD=SPI slave mode, PU=MDC/MDIO mode) and requires an external pull-up or pull-down resistor."
},
{
"number": "53",
"name": "SCL_MDC",
"type": "input",
"description": "Clock for SPI (up to 50 MHz in SPI slave mode) or MDC/MDIO (up to 25 MHz) interfaces; internal pull-up."
},
{
"number": "54",
"name": "SDA_MDIO",
"type": "bidirectional",
"description": "Serial data input in SPI slave mode or MDC/MDIO input/output data line."
},
{
"number": "55",
"name": "SPIS_N",
"type": "input",
"description": "Active-low SPI chip select; when high the device is deselected and SPIQ is high impedance, a high-to-low transition starts SPI transfer."
},
{
"number": "56",
"name": "VDDIO",
"type": "power_in",
"description": "3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry."
},
{
"number": "57",
"name": "GNDD",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "58",
"name": "RST_N",
"type": "input",
"description": "Active-low hardware reset with internal pull-up."
},
{
"number": "59",
"name": "VDD12D",
"type": "power_in",
"description": "1.2V core power."
},
{
"number": "60",
"name": "VDDAT",
"type": "power_in",
"description": "3.3V or 2.5V analog power."
},
{
"number": "61",
"name": "ISET",
"type": "passive",
"description": "Transmit output current set; connect to GND through a 12.4 kΩ 1% resistor."
},
{
"number": "62",
"name": "GNDA",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "63",
"name": "XI",
"type": "input",
"description": "Crystal/oscillator input; connect to a 25 MHz crystal or 3.3V oscillator output with ±50 ppm tolerance."
},
{
"number": "64",
"name": "XO",
"type": "output",
"description": "Crystal clock output; connects to one end of the 25 MHz crystal circuit."
},
{
"number": "65",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The provided pages do not list an exposed pad pin or its connection, so no EP pin was output. The pa; Pin 43 is named RXER in Table 2-1 but RXER4 in Figure 2-1. RXER4 was used.; Pins 2, 12 and 60 are named VDDAT in Table 2-1 but VDDAT33 in Figure 2-1. VDDAT was used.",
"2/65 pins cited to the wrong page (name found elsewhere): ['63:XI@p10', '64:XO@p10']"
],
"pages_sent": 23,
"cost_usd": 0.2847,
"at": "2026-10-30T20:54:56"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/baa75dd88ac85e471d21f4f907510881.pdf",
"pages": 124,
"sha256": "15cba2ada6d300b8",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 65,
"described": 65,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ksz8794cnxcc.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
8.0,
8.0,
0.87
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "553641350988a3d949874ef3cbbe3efa6e239859177963f45ba4e900f4c74ccf",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ksz8794cnxcc-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
8.0,
8.0,
0.87
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"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "1b86f9fd6d0b30cd030074c902379399fa382ca202e586db226186587d838fb8",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}