component
AT28C64B-15PU
Public Made by Adomby adom
Microchip Tech EEPROM, DIP-28-600mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "at28c64b-15pu",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech EEPROM, DIP-28-600mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"memory",
"at28c64b-15pu",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"at28c64b-15pu.kicad_sym",
"at28c64b-15pu.kicad_mod",
"at28c64b-15pu.glb",
"at28c64b-15pu.step",
"at28c64b-15pu.lbr",
"docs/hero.png",
"docs/at28c64b-15pu-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"at28c64b-15pu-hero.glb",
"at28c64b-15pu-hero.overlay.json",
"at28c64b-15pu-etched.glb"
],
"component": {
"mpn": "AT28C64B-15PU",
"manufacturer": "Microchip Tech",
"package": "DIP-28-600mil",
"pin_count": 28,
"category": "Memory",
"subcategory": "EEPROM",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/946fc4f4db954ad390ffa69b5455c261.pdf",
"parts": {
"symbol": "at28c64b-15pu.kicad_sym",
"footprint": "at28c64b-15pu.kicad_mod",
"model_3d": "at28c64b-15pu-hero.glb",
"model_3d_plain": "at28c64b-15pu-etched.glb",
"model_3d_step": "at28c64b-15pu-etched.step",
"model_3d_step_plain": "at28c64b-15pu.step",
"lbr": "at28c64b-15pu.lbr"
},
"distributor_links": {
"lcsc": "C41982",
"digikey": "AT28C64B-15PU-ND",
"mouser": "556-AT28C64B15PU"
},
"distributor_check": {
"checked_at": "2026-10-30T00:14:35Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "AT28C64B-15PU-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-AT28C64B15PU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "NC",
"type": "unconnected",
"description": "No connect pin on the 28-lead PDIP; it has no internal connection."
},
{
"number": "2",
"name": "A12",
"type": "input",
"description": "Address input; A6 to A12 select the page, and all bytes of a page write must share the same A6 to A12 state on each WE high-to-low transition."
},
{
"number": "3",
"name": "A7",
"type": "input",
"description": "Address input; part of the A6 to A12 page address that must remain constant during a page write."
},
{
"number": "4",
"name": "A6",
"type": "input",
"description": "Address input; part of the A6 to A12 page address that must remain constant during a page write."
},
{
"number": "5",
"name": "A5",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "6",
"name": "A4",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "7",
"name": "A3",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "8",
"name": "A2",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "9",
"name": "A1",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "10",
"name": "A0",
"type": "input",
"description": "Address input; A0 to A5 select which byte within the 64-byte page is written."
},
{
"number": "11",
"name": "I/O0",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "12",
"name": "I/O1",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "13",
"name": "I/O2",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "15",
"name": "I/O3",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "16",
"name": "I/O4",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "17",
"name": "I/O5",
"type": "bidirectional",
"description": "Data input/output; outputs go to high impedance when CE or OE is high."
},
{
"number": "18",
"name": "I/O6",
"type": "bidirectional",
"description": "Data input/output; I/O6 toggles during a write cycle and stops when the write completes (toggle bit)."
},
{
"number": "19",
"name": "I/O7",
"type": "bidirectional",
"description": "Data input/output; the complement of written data appears here during a write cycle (DATA Polling) and true data once the write completes."
},
{
"number": "20",
"name": "CE",
"type": "input",
"description": "Chip enable; CE must be low with OE low and WE high to read, and a high level puts the device in standby with CMOS standby current below 100 µA."
},
{
"number": "21",
"name": "A10",
"type": "input",
"description": "Address input; A10 is one of the memory address bits."
},
{
"number": "22",
"name": "OE",
"type": "input",
"description": "Output enable; with CE low and WE high, OE low asserts the addressed data on the outputs, and OE high holds the outputs in high impedance."
},
{
"number": "23",
"name": "A11",
"type": "input",
"description": "Address input; part of the A6 to A12 page address that must remain constant during a page write."
},
{
"number": "24",
"name": "A9",
"type": "input",
"description": "Address input; raising A9 to 12.0 V ±0.5 V with addresses 1FC0H to 1FFFH accesses the 64-byte device identification EEPROM, and absolute maximum on A9 is -0.6 V to +13.5 V."
},
{
"number": "25",
"name": "A8",
"type": "input",
"description": "Address input; part of the A6 to A12 page address that must remain constant during a page write."
},
{
"number": "26",
"name": "NC",
"type": "unconnected",
"description": "No connect pin on the 28-lead PDIP; it has no internal connection."
},
{
"number": "27",
"name": "WE",
"type": "input",
"description": "Write enable; a low pulse on WE with CE low and OE high starts a write cycle, and pulses shorter than 15 ns (typical) are filtered out."
},
{
"number": "28",
"name": "VCC",
"type": "power_in",
"description": "Power supply, 5 V ±10% per the DC and AC operating range."
}
],
"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 gives the PDIP pinout only as a text-extracted top-view diagram with no explicit pin-n; The datasheet's pin-description table lists DC (Don't Connect) only for the PLCC and TSOP variants; ",
"1/28 pins cited to the wrong page (name found elsewhere): ['28:VCC@p5']"
],
"pages_sent": 18,
"cost_usd": 0.0723,
"at": "2026-10-30T00:14:25"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/946fc4f4db954ad390ffa69b5455c261.pdf",
"pages": 18,
"sha256": "fa7183edcd4cbf3c",
"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": [
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"file": "at28c64b-15pu.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "body on z = 0, through-hole leads below",
"extents_mm": [
7.874,
35.56,
6.98
],
"zmin_mm": -3.3,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "7bf4503e368ad9b7a3eddfa94bc8dee656da5d6921b677e17307b3d7f29177ab",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "at28c64b-15pu-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "body on z = 0, through-hole leads below",
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],
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"footprint_binding": "identity",
"sha256": "e98ae752d0448312529282b612e205f0c1d44adad80dc70c9d0e7f30ec1b0490",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}