component
PCA9535EDTR2G
Public Made by Adomby adom
onsemi I/O Expanders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338
{
"slug": "pca9535edtr2g",
"version": "0.1.0",
"type": "component",
"description": "onsemi I/O Expanders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"pca9535edtr2g",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"pca9535edtr2g.kicad_sym",
"pca9535edtr2g.kicad_mod",
"pca9535edtr2g.glb",
"pca9535edtr2g.step",
"pca9535edtr2g.lbr",
"docs/hero.png",
"docs/pca9535edtr2g-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"pca9535edtr2g-hero.glb",
"pca9535edtr2g-hero.overlay.json",
"pca9535edtr2g-etched.glb"
],
"component": {
"mpn": "PCA9535EDTR2G",
"manufacturer": "onsemi",
"package": "TSSOP-24",
"pin_count": 24,
"category": "Interface ICs",
"subcategory": "I/O Expanders",
"datasheet": "https://www.onsemi.com/pdf/datasheet/pca9535edtr2-d.pdf",
"parts": {
"symbol": "pca9535edtr2g.kicad_sym",
"footprint": "pca9535edtr2g.kicad_mod",
"model_3d": "pca9535edtr2g-hero.glb",
"model_3d_plain": "pca9535edtr2g-etched.glb",
"model_3d_step": "pca9535edtr2g-etched.step",
"model_3d_step_plain": "pca9535edtr2g.step",
"lbr": "pca9535edtr2g.lbr"
},
"distributor_links": {
"lcsc": "C604661",
"digikey": "PCA9535EDTR2GOSTR-ND",
"mouser": "863-PCA9535EDTR2G"
},
"distributor_check": {
"checked_at": "2026-10-31T18:38:00Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "PCA9535EDTR2GOSTR-ND",
"status": "found",
"lifecycle": "Obsolete"
},
"mouser": {
"pn": "863-PCA9535EDTR2G",
"status": "found",
"lifecycle": "End of Life"
}
},
"pins": [
{
"number": "1",
"name": "INT",
"type": "output",
"description": "Active-LOW open-drain interrupt output, activated when any input state differs from its input port register state."
},
{
"number": "2",
"name": "AD1",
"type": "input",
"description": "Address input 1, used with AD0 and AD2 to set the I2C-bus slave address."
},
{
"number": "3",
"name": "AD2",
"type": "input",
"description": "Address input 2, used with AD0 and AD1 to set the I2C-bus slave address."
},
{
"number": "4",
"name": "IO0_0",
"type": "bidirectional",
"description": "Port 0 I/O 0, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "5",
"name": "IO0_1",
"type": "bidirectional",
"description": "Port 0 I/O 1, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "6",
"name": "IO0_2",
"type": "bidirectional",
"description": "Port 0 I/O 2, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "7",
"name": "IO0_3",
"type": "bidirectional",
"description": "Port 0 I/O 3, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "8",
"name": "IO0_4",
"type": "bidirectional",
"description": "Port 0 I/O 4, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "9",
"name": "IO0_5",
"type": "bidirectional",
"description": "Port 0 I/O 5, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "10",
"name": "IO0_6",
"type": "bidirectional",
"description": "Port 0 I/O 6, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "11",
"name": "IO0_7",
"type": "bidirectional",
"description": "Port 0 I/O 7, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "12",
"name": "VSS",
"type": "power_in",
"description": "Supply ground."
},
{
"number": "13",
"name": "IO1_0",
"type": "bidirectional",
"description": "Port 1 I/O 0, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "14",
"name": "IO1_1",
"type": "bidirectional",
"description": "Port 1 I/O 1, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "15",
"name": "IO1_2",
"type": "bidirectional",
"description": "Port 1 I/O 2, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "16",
"name": "IO1_3",
"type": "bidirectional",
"description": "Port 1 I/O 3, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "17",
"name": "IO1_4",
"type": "bidirectional",
"description": "Port 1 I/O 4, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "18",
"name": "IO1_5",
"type": "bidirectional",
"description": "Port 1 I/O 5, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "19",
"name": "IO1_6",
"type": "bidirectional",
"description": "Port 1 I/O 6, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "20",
"name": "IO1_7",
"type": "bidirectional",
"description": "Port 1 I/O 7, defaults to input at power-on and is 5.5 V tolerant."
},
{
"number": "21",
"name": "AD0",
"type": "input",
"description": "Address input 0, used with AD1 and AD2 to set the I2C-bus slave address."
},
{
"number": "22",
"name": "SCL",
"type": "input",
"description": "I2C serial clock line input supporting 100 kHz, 400 kHz and 1 MHz clock frequencies."
},
{
"number": "23",
"name": "SDA",
"type": "bidirectional",
"description": "I2C serial data line with 30 mA sink capability."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "Supply voltage, 1.65 V to 5.5 V operating range."
}
],
"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": [],
"pages_sent": 10,
"cost_usd": 0.1205,
"at": "2026-10-31T18:37:37"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/pca9535edtr2-d.pdf",
"pages": 22,
"sha256": "5f24973b534cbc15",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 24,
"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "pca9535edtr2g.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
7.8,
0.97
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "pca9535edtr2g-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
7.8,
0.97
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "0d99d55fc6fb30db1126b477de2c54fbd14519bda2caaca2f5735772945465e7",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "TSSOP24 (CASE 948H)",
"source_page": 21,
"D": {
"nom_mm": 7.8,
"range_mm": [
7.7,
7.9
]
},
"E1": {
"nom_mm": 4.4,
"range_mm": [
4.3,
4.5
]
},
"E": {
"nom_mm": 6.4,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.65,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.2,
"range_mm": [
null,
1.2
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "pca9535edtr2g.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}