component
VSC8531XMW-05
Public Made by Adomby adom
Microchip Tech Telecommunication Interface ICs, QFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "vsc8531xmw-05",
"title": "VSC8531XMW-05",
"brief": "Microchip Tech Telecommunication Interface ICs, QFN-48-EP(6x6). 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",
"interface ics",
"vsc8531xmw-05",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "VSC8531XMW-05",
"manufacturer": "Microchip Tech",
"package": "QFN-48-EP(6x6)",
"pin_count": 49,
"category": "Interface ICs",
"subcategory": "Telecommunication Interface ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5cc6f1d6cad35b9742605880c7158f5c.pdf",
"parts": {
"symbol": "vsc8531xmw-05.kicad_sym",
"footprint": "vsc8531xmw-05.kicad_mod",
"model_3d": "vsc8531xmw-05-hero.glb",
"model_3d_plain": "vsc8531xmw-05-etched.glb",
"model_3d_step": "vsc8531xmw-05-etched.step",
"model_3d_step_plain": "vsc8531xmw-05.step",
"lbr": "vsc8531xmw-05.lbr"
},
"distributor_links": {
"lcsc": "C1522132",
"digikey": "VSC8531XMW-05-ND",
"mouser": "494-VSC8531XMW-05"
},
"distributor_check": {
"checked_at": "2026-11-02T17:01:47Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "VSC8531XMW-05-ND",
"status": "found"
},
"mouser": {
"pn": "494-VSC8531XMW-05",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VDD25A",
"type": "power_in",
"description": "2.5 V analog power supply, requiring additional PCB power supply filtering; recommended range 2.38 V to 2.62 V."
},
{
"number": "2",
"name": "VDD1A",
"type": "power_in",
"description": "1.0 V analog power supply, requiring additional PCB power supply filtering; recommended range 0.95 V to 1.05 V."
},
{
"number": "3",
"name": "P0_D3N",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel D negative signal (analog differential pair, VDD25A domain)."
},
{
"number": "4",
"name": "P0_D3P",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel D positive signal (analog differential pair, VDD25A domain)."
},
{
"number": "5",
"name": "VDD25A",
"type": "power_in",
"description": "2.5 V analog power supply, requiring additional PCB power supply filtering; recommended range 2.38 V to 2.62 V."
},
{
"number": "6",
"name": "P0_D2N",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel C negative signal (analog differential pair, VDD25A domain)."
},
{
"number": "7",
"name": "P0_D2P",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel C positive signal (analog differential pair, VDD25A domain)."
},
{
"number": "8",
"name": "VDD25A",
"type": "power_in",
"description": "2.5 V analog power supply, requiring additional PCB power supply filtering; recommended range 2.38 V to 2.62 V."
},
{
"number": "9",
"name": "P0_D1N",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel B negative signal (analog differential pair, VDD25A domain)."
},
{
"number": "10",
"name": "P0_D1P",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel B positive signal (analog differential pair, VDD25A domain)."
},
{
"number": "11",
"name": "P0_D0N",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel A negative signal (analog differential pair, VDD25A domain)."
},
{
"number": "12",
"name": "P0_D0P",
"type": "passive",
"description": "Cu PHY media Tx/Rx channel A positive signal (analog differential pair, VDD25A domain)."
},
{
"number": "13",
"name": "VDD1A",
"type": "power_in",
"description": "1.0 V analog power supply, requiring additional PCB power supply filtering; recommended range 0.95 V to 1.05 V."
},
{
"number": "14",
"name": "VDD1",
"type": "power_in",
"description": "1.0 V digital core power; recommended range 0.95 V to 1.05 V."
},
{
"number": "15",
"name": "VDDMAC",
"type": "power_in",
"description": "RGMII/RMII MAC power supply at 1.5 V, 1.8 V, 2.5 V, or 3.3 V; recommended range 1.425 V to 3.465 V depending on selected level."
},
{
"number": "16",
"name": "RXD3",
"type": "bidirectional",
"description": "RGMII receive data output bit 3 (RMII/RGMII shared pin, VDDMAC domain); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "17",
"name": "RXD2",
"type": "bidirectional",
"description": "RGMII receive data output bit 2 (RMII/RGMII shared pin, VDDMAC domain); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "18",
"name": "RXD1",
"type": "bidirectional",
"description": "RGMII receive data output bit 1 (RMII/RGMII shared pin, VDDMAC domain); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "19",
"name": "VDDMAC",
"type": "power_in",
"description": "RGMII/RMII MAC power supply at 1.5 V, 1.8 V, 2.5 V, or 3.3 V; recommended range 1.425 V to 3.465 V depending on selected level."
},
{
"number": "20",
"name": "RXD0",
"type": "bidirectional",
"description": "RGMII receive data output bit 0 (RMII/RGMII shared pin, VDDMAC domain); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "21",
"name": "RX_CTL",
"type": "bidirectional",
"description": "RGMII receive control output (RMII/RGMII shared pin, VDDMAC domain); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "22",
"name": "RX_CLK",
"type": "bidirectional",
"description": "RGMII receive clock output (carries RMII_CLKOUT in RMII mode, 50 MHz); its logic state is latched on the rising edge of NRESET for configuration."
},
{
"number": "23",
"name": "TX_CTL",
"type": "input",
"description": "RGMII transmit data control input (VDDMAC domain, internal pull-down)."
},
{
"number": "24",
"name": "VDD1",
"type": "power_in",
"description": "1.0 V digital core power; recommended range 0.95 V to 1.05 V."
},
{
"number": "25",
"name": "TX_CLK",
"type": "input",
"description": "RGMII transmit clock input (VDDMAC domain, internal pull-down)."
},
{
"number": "26",
"name": "TXD0",
"type": "input",
"description": "RGMII data input bit 0 (VDDMAC domain, internal pull-down)."
},
{
"number": "27",
"name": "VDDMAC",
"type": "power_in",
"description": "RGMII/RMII MAC power supply at 1.5 V, 1.8 V, 2.5 V, or 3.3 V; recommended range 1.425 V to 3.465 V depending on selected level."
},
{
"number": "28",
"name": "TXD1",
"type": "input",
"description": "RGMII data input bit 1 (VDDMAC domain, internal pull-down)."
},
{
"number": "29",
"name": "TXD2",
"type": "input",
"description": "RGMII data input bit 2 (VDDMAC domain, internal pull-down)."
},
{
"number": "30",
"name": "TXD3",
"type": "input",
"description": "RGMII data input bit 3 (VDDMAC domain, internal pull-down)."
},
{
"number": "31",
"name": "MDC",
"type": "input",
"description": "Management data clock reference input for the SMI, 0 MHz to 12.5 MHz, referenced to VDDMDIO."
},
{
"number": "32",
"name": "VDDMDIO",
"type": "power_in",
"description": "Power for SMI pins at 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V; recommended range 1.14 V to 3.465 V depending on selected level."
},
{
"number": "33",
"name": "MDIO",
"type": "bidirectional",
"description": "Management data input/output, synchronous to the positive edge of MDC; requires one external pull-up resistor at the station manager."
},
{
"number": "34",
"name": "MDINT",
"type": "output",
"description": "Management interrupt, open-drain output that can be wired-OR with other MDINT pins using a single pull-up resistor."
},
{
"number": "35",
"name": "NRESET",
"type": "input",
"description": "Active-low device reset input that powers down the device and sets all register bits to default; the NRESET pulse width must be at least 100 ns."
},
{
"number": "36",
"name": "CLKOUT",
"type": "bidirectional",
"description": "Programmable-frequency clock output (125, 50 or 25 MHz) derived from the reference clock, disabled and held low by default and inactive while NRESET is asserted."
},
{
"number": "37",
"name": "VDDIO",
"type": "power_in",
"description": "2.5 V or 3.3 V general I/O power; recommended range 2.38 V to 3.465 V depending on selected level."
},
{
"number": "38",
"name": "LED1",
"type": "output",
"description": "Active-low LED direct drive output; carries LED_CLK in serial LED mode."
},
{
"number": "39",
"name": "LED0",
"type": "output",
"description": "Active-low LED direct drive output; carries LED_DATA in serial LED mode."
},
{
"number": "40",
"name": "REFCLK_SEL_1",
"type": "input",
"description": "Reference clock mode/frequency select input with internal pull-up, referenced to VDDIO."
},
{
"number": "41",
"name": "REFCLK_SEL_0",
"type": "input",
"description": "Reference clock mode/frequency select input with internal pull-up, referenced to VDDIO."
},
{
"number": "42",
"name": "XTAL1",
"type": "input",
"description": "Crystal or single-ended reference clock input, referenced to VDD25A."
},
{
"number": "43",
"name": "XTAL2",
"type": "output",
"description": "Crystal output; leave unconnected when using a single-ended reference clock."
},
{
"number": "44",
"name": "RESERVED_1",
"type": "unconnected",
"description": "Reserved signal; leave unconnected."
},
{
"number": "45",
"name": "RESERVED_0",
"type": "unconnected",
"description": "Reserved signal; leave unconnected."
},
{
"number": "46",
"name": "REF_FILT",
"type": "passive",
"description": "Reference filter; connect to an external 0.01 µF (20%) capacitor to analog ground."
},
{
"number": "47",
"name": "VDD1A",
"type": "power_in",
"description": "1.0 V analog power supply, requiring additional PCB power supply filtering; recommended range 0.95 V to 1.05 V."
},
{
"number": "48",
"name": "REF_REXT",
"type": "passive",
"description": "Reference resistor connection; connect to an external 2 kΩ (1%) resistor to analog ground."
},
{
"number": "49",
"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-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet's QFN-48 exposed pad (package ground) has no pin number, so it is not listed in pins. ",
"1/49 pins cited to the wrong page (name found elsewhere): ['42:XTAL1@p77']",
"1/49 pin names appear NOWHERE in the datasheet text: ['43:XTAL2@p77']"
],
"pages_sent": 21,
"cost_usd": 0.0533,
"at": "2026-11-02T17:01:30"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/5cc6f1d6cad35b9742605880c7158f5c.pdf",
"pages": 85,
"sha256": "73781f7b86d5935c",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "vsc8531xmw-05.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.02,
6.02,
0.9
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9f1a8fb3c296077167cea630558358908149ac9e5a19367b10c87992eb13ee47",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "vsc8531xmw-05-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.02,
6.02,
0.9
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c61134724860ef5a2ecd55fd86954e82a12b340e6bd97692e0d613c60f49f0b7",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-48-EP(6x6)",
"Category": "Interface ICs",
"Pins": "49"
},
"appearance": {
"contacts": {
"quote": "enabled or disabled for each LED pin. For example, a copper link running in 1000BASE-T mode and",
"page": 27,
"doc": "ds.pdf",
"material": "copper"
},
"housing": {
"quote": "with an exposed pad, 6 mm × 6 mm body size, 0.4 mm pin pitch, and 0.9 mm maximum height. Lead-free products from Microsemi comply with the temperatures and profiles defined in the joint IPC",
"page": 80,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
"datasheet_sha256": "73781f7b86d5935cd963768910888418cb8886809244dffea14f7bd42858c0a1"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "73781f7b86d5935cd963768910888418cb8886809244dffea14f7bd42858c0a1",
"rows": [
{
"name": "Power supply voltage for core supply",
"symbol": "VDD1",
"kind": "recommended_operating",
"unit": "V",
"min": 0.95,
"typ": 1,
"max": 1.05,
"conditions": "",
"source_page": 73,
"source": "datasheet"
},
{
"name": "Power supply voltage for analog circuits",
"symbol": "VDD1A",
"kind": "recommended_operating",
"unit": "V",
"min": 0.95,
"typ": 1,
"max": 1.05,
"conditions": "",
"source_page": 73,
"source": "datasheet"
},
{
"name": "2.5 V power supply voltage for analog circuits",
"symbol": "VDD25A",
"kind": "recommended_operating",
"unit": "V",
"min": 2.38,
"typ": 2.5,
"max": 2.62,
"conditions": "",
"source_page": 73,
"source": "datasheet"
},
{
"name": "2.5 V power supply voltage for VDDMAC, VDDIO, and VDDMDIO",
"symbol": "V25",
"kind": "recommended_operating",
"unit": "V",
"min": 2.38,
"typ": 2.5,
"max": 2.62,
"conditions": "",
"source_page": 73,
"source": "datasheet"
},
{
"name": "3.3 V power supply voltage for VDDMAC, VDDIO, and VDDMDIO",
"symbol": "V33",
"kind": "recommended_operating",
"unit": "V",
"min": 3.135,
"typ": 3.3,
"max": 3.465,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "1.8 V power supply voltage for VDDMAC and VDDMDIO",
"symbol": "V18",
"kind": "recommended_operating",
"unit": "V",
"min": 1.71,
"typ": 1.8,
"max": 1.89,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "1.5 V power supply voltage for VDDMAC and VDDMDIO",
"symbol": "V15",
"kind": "recommended_operating",
"unit": "V",
"min": 1.425,
"typ": 1.5,
"max": 1.575,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "1.2 V power supply voltage for VDDMDIO",
"symbol": "V12",
"kind": "recommended_operating",
"unit": "V",
"min": 1.14,
"typ": 1.2,
"max": 1.26,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "VSC8531-05 operating temperature",
"symbol": "T",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "VSC8531-05; minimum ambient, maximum junction",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Power supply voltage for core supply",
"symbol": "VDD1",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 1.1,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Power supply voltage for analog circuits",
"symbol": "VDD1A",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 1.1,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Power supply voltage for analog circuits",
"symbol": "VDD25A",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 2.75,
"conditions": "",
"source_page": 74,
"source": "datasheet"
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{
"name": "Power supply voltage for digital I/O VDDMAC, VDDIO, VDDMDIO",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 74,
"source": "datasheet"
},
{
"name": "Input voltage for digital I/O (3.3 V)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 3.6,
"conditions": "3.3 V",
"source_page": 74,
"source": "datasheet"
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