component
XD71055
Public Made by Adomby adom
XINLUDA I/O Expanders, DIP-40. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385
{
"slug": "xd71055",
"version": "0.1.0",
"type": "component",
"description": "XINLUDA I/O Expanders, DIP-40. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"xd71055",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"xd71055.kicad_sym",
"xd71055.kicad_mod",
"xd71055.glb",
"xd71055.step",
"xd71055.lbr",
"docs/hero.png",
"docs/xd71055-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"xd71055-hero.glb",
"xd71055-hero.overlay.json",
"xd71055-etched.glb"
],
"component": {
"mpn": "XD71055",
"manufacturer": "XINLUDA",
"package": "DIP-40",
"pin_count": 40,
"category": "Interface ICs",
"subcategory": "I/O Expanders",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/09127d7ec5d5a180d7d8b5b9daa1b703.pdf",
"parts": {
"symbol": "xd71055.kicad_sym",
"footprint": "xd71055.kicad_mod",
"model_3d": "xd71055-hero.glb",
"model_3d_plain": "xd71055-etched.glb",
"model_3d_step": "xd71055-etched.step",
"model_3d_step_plain": "xd71055.step",
"lbr": "xd71055.lbr"
},
"distributor_links": {
"lcsc": "C707087"
},
"distributor_check": {
"checked_at": "2026-10-27T05:29:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "P03",
"type": "bidirectional",
"description": "Port 0 I/O bit 3."
},
{
"number": "2",
"name": "P02",
"type": "bidirectional",
"description": "Port 0 I/O bit 2."
},
{
"number": "3",
"name": "P01",
"type": "bidirectional",
"description": "Port 0 I/O bit 1."
},
{
"number": "4",
"name": "P00",
"type": "bidirectional",
"description": "Port 0 I/O bit 0."
},
{
"number": "5",
"name": "RD",
"type": "input",
"description": "Active-low read strobe input, set low when data is being read from the XD71055 data bus."
},
{
"number": "6",
"name": "CS",
"type": "input",
"description": "Active-low chip select input; when high the device is not selected and its data bus is high-impedance."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "8",
"name": "A1",
"type": "input",
"description": "Address input 1, used with RD and WR to select one of the three ports or the command register."
},
{
"number": "9",
"name": "A0",
"type": "input",
"description": "Address input 0, used with RD and WR to select one of the three ports or the command register."
},
{
"number": "10",
"name": "P27",
"type": "bidirectional",
"description": "Port 2 I/O bit 7."
},
{
"number": "11",
"name": "P26",
"type": "bidirectional",
"description": "Port 2 I/O bit 6."
},
{
"number": "12",
"name": "P25",
"type": "bidirectional",
"description": "Port 2 I/O bit 5."
},
{
"number": "13",
"name": "P24",
"type": "bidirectional",
"description": "Port 2 I/O bit 4."
},
{
"number": "14",
"name": "P20",
"type": "bidirectional",
"description": "Port 2 I/O bit 0."
},
{
"number": "15",
"name": "P21",
"type": "bidirectional",
"description": "Port 2 I/O bit 1."
},
{
"number": "16",
"name": "P22",
"type": "bidirectional",
"description": "Port 2 I/O bit 2."
},
{
"number": "17",
"name": "P23",
"type": "bidirectional",
"description": "Port 2 I/O bit 3."
},
{
"number": "18",
"name": "P10",
"type": "bidirectional",
"description": "Port 1 I/O bit 0."
},
{
"number": "19",
"name": "P11",
"type": "bidirectional",
"description": "Port 1 I/O bit 1."
},
{
"number": "20",
"name": "P12",
"type": "bidirectional",
"description": "Port 1 I/O bit 2."
},
{
"number": "21",
"name": "P13",
"type": "bidirectional",
"description": "Port 1 I/O bit 3."
},
{
"number": "22",
"name": "P14",
"type": "bidirectional",
"description": "Port 1 I/O bit 4."
},
{
"number": "23",
"name": "P15",
"type": "bidirectional",
"description": "Port 1 I/O bit 5."
},
{
"number": "24",
"name": "P16",
"type": "bidirectional",
"description": "Port 1 I/O bit 6."
},
{
"number": "25",
"name": "P17",
"type": "bidirectional",
"description": "Port 1 I/O bit 7."
},
{
"number": "26",
"name": "VDD",
"type": "power_in",
"description": "+5V supply (single +5V ±10% power supply)."
},
{
"number": "27",
"name": "D7",
"type": "bidirectional",
"description": "Bit 7 of the 8-bit three-state bidirectional data bus."
},
{
"number": "28",
"name": "D6",
"type": "bidirectional",
"description": "Bit 6 of the 8-bit three-state bidirectional data bus."
},
{
"number": "29",
"name": "D5",
"type": "bidirectional",
"description": "Bit 5 of the 8-bit three-state bidirectional data bus."
},
{
"number": "30",
"name": "D4",
"type": "bidirectional",
"description": "Bit 4 of the 8-bit three-state bidirectional data bus."
},
{
"number": "31",
"name": "D3",
"type": "bidirectional",
"description": "Bit 3 of the 8-bit three-state bidirectional data bus."
},
{
"number": "32",
"name": "D2",
"type": "bidirectional",
"description": "Bit 2 of the 8-bit three-state bidirectional data bus."
},
{
"number": "33",
"name": "D1",
"type": "bidirectional",
"description": "Bit 1 of the 8-bit three-state bidirectional data bus."
},
{
"number": "34",
"name": "D0",
"type": "bidirectional",
"description": "Bit 0 of the 8-bit three-state bidirectional data bus."
},
{
"number": "35",
"name": "RESET",
"type": "input",
"description": "Reset input; when high the device is reset, ports are set to mode 0, all port bits are cleared to zero and all ports are set for input."
},
{
"number": "36",
"name": "WR",
"type": "input",
"description": "Active-low write strobe input; data bus contents are written to the device at the rising edge of WR."
},
{
"number": "37",
"name": "P07",
"type": "bidirectional",
"description": "Port 0 I/O bit 7."
},
{
"number": "38",
"name": "P06",
"type": "bidirectional",
"description": "Port 0 I/O bit 6."
},
{
"number": "39",
"name": "P05",
"type": "bidirectional",
"description": "Port 0 I/O bit 5."
},
{
"number": "40",
"name": "P04",
"type": "bidirectional",
"description": "Port 0 I/O bit 4."
}
],
"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+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Page 2 pin table labels the read strobe 'RO', while page 1 pinout and page 3 text call it RD; treate; Datasheet gives no per-pin electrical limits beyond general DC characteristics; descriptions use sta",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 18,
"cost_usd": 0.0741,
"at": "2026-10-27T05:29:03"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/09127d7ec5d5a180d7d8b5b9daa1b703.pdf",
"pages": 18,
"sha256": "48de84ac665be88b",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 40,
"described": 40,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "xd71055.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "body on z = 0, through-hole leads below",
"extents_mm": [
25.4,
50.8,
6.98
],
"zmin_mm": -3.3,
"centre_offset_mm": 0.127,
"footprint_binding": "identity",
"sha256": "114010029e96b840de5e76a4e7f09f46a19e6db723f6d096bd70dbeb8ce0aff9",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "xd71055-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "body on z = 0, through-hole leads below",
"extents_mm": [
25.4,
50.8,
6.98
],
"zmin_mm": -3.3,
"centre_offset_mm": 0.127,
"footprint_binding": "identity",
"sha256": "957d6a5db0e0c48cd34bc4cee38616589ffa6f416fc6e1487f6855dc54e8a889",
"checked": "2026-10-27",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}