component
AT28C256-15SU
Public Made by Adomby adom
Microchip Tech Pre-ordered Chips, SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "at28c256-15su",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Pre-ordered Chips, SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"at28c256-15su",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"at28c256-15su.kicad_sym",
"at28c256-15su.kicad_mod",
"at28c256-15su.glb",
"at28c256-15su.step",
"at28c256-15su.lbr",
"docs/hero.png",
"docs/at28c256-15su-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"at28c256-15su-hero.glb",
"at28c256-15su-hero.overlay.json",
"at28c256-15su-etched.glb"
],
"component": {
"mpn": "AT28C256-15SU",
"manufacturer": "Microchip Tech",
"package": "SOIC-28-300mil",
"pin_count": 28,
"category": "Interface ICs",
"subcategory": "Pre-ordered Chips",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/54161762de2f2013ff965a86d2353edb.pdf",
"parts": {
"symbol": "at28c256-15su.kicad_sym",
"footprint": "at28c256-15su.kicad_mod",
"model_3d": "at28c256-15su-hero.glb",
"model_3d_plain": "at28c256-15su-etched.glb",
"model_3d_step": "at28c256-15su-etched.step",
"model_3d_step_plain": "at28c256-15su.step",
"lbr": "at28c256-15su.lbr"
},
"distributor_links": {
"lcsc": "C1349121",
"digikey": "AT28C256-15SU-ND",
"mouser": "556-AT28C25615SU"
},
"distributor_check": {
"checked_at": "2026-10-28T15:58:13Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "AT28C256-15SU-ND",
"status": "found"
},
"mouser": {
"pn": "556-AT28C25615SU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "A14",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "2",
"name": "A12",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "3",
"name": "A7",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "4",
"name": "A6",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "5",
"name": "A5",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "6",
"name": "A4",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "7",
"name": "A3",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "8",
"name": "A2",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "9",
"name": "A1",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "10",
"name": "A0",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "11",
"name": "I/O0",
"type": "bidirectional",
"description": "Data input/output bit 0 of the 8-bit data bus."
},
{
"number": "12",
"name": "I/O1",
"type": "bidirectional",
"description": "Data input/output bit 1 of the 8-bit data bus."
},
{
"number": "13",
"name": "I/O2",
"type": "bidirectional",
"description": "Data input/output bit 2 of the 8-bit data bus."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "15",
"name": "I/O3",
"type": "bidirectional",
"description": "Data input/output bit 3 of the 8-bit data bus."
},
{
"number": "16",
"name": "I/O4",
"type": "bidirectional",
"description": "Data input/output bit 4 of the 8-bit data bus."
},
{
"number": "17",
"name": "I/O5",
"type": "bidirectional",
"description": "Data input/output bit 5 of the 8-bit data bus."
},
{
"number": "18",
"name": "I/O6",
"type": "bidirectional",
"description": "Data input/output bit 6 of the 8-bit data bus."
},
{
"number": "19",
"name": "I/O7",
"type": "bidirectional",
"description": "Data input/output bit 7 of the 8-bit data bus; DATA Polling of I/O7 indicates end of write."
},
{
"number": "20",
"name": "CE",
"type": "input",
"description": "Chip Enable input; when the device is deselected the CMOS standby current is less than 200 µA."
},
{
"number": "21",
"name": "A10",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "22",
"name": "OE",
"type": "input",
"description": "Output Enable input controlling the data outputs."
},
{
"number": "23",
"name": "A11",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "24",
"name": "A9",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "25",
"name": "A8",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "26",
"name": "A13",
"type": "input",
"description": "Address input for the 32,768-byte array (organized as 32,768 x 8)."
},
{
"number": "27",
"name": "WE",
"type": "input",
"description": "Write Enable input controlling writes to the device."
},
{
"number": "28",
"name": "VCC",
"type": "power_in",
"description": "Device power supply, single 5V ± 10% supply."
}
],
"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: Pinout taken from Table 2-1, 28-Lead PDIP/SOIC column (page 5), matched to the 28-lead PDIP/SOIC top"
],
"pages_sent": 14,
"cost_usd": 0.0205,
"at": "2026-10-28T15:57:47"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/54161762de2f2013ff965a86d2353edb.pdf",
"pages": 32,
"sha256": "2a586001cf95d3b5",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "at28c256-15su.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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17.9,
2.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "at28c256-15su-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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10.3,
17.9,
2.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "c0a2d85b8a0288caa02d9bab97bcccf36a07d80dc4ae39bea4f3845d720ff51d",
"checked": "2026-10-28",
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}
]
}
}