component
SN74LS688DWR
Public Made by Adomby adom
Texas Instruments Digital Comparators, SOIC-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "sn74ls688dwr",
"title": "SN74LS688DWR",
"brief": "Texas Instruments Digital Comparators, SOIC-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"logic",
"sn74ls688dwr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "SN74LS688DWR",
"manufacturer": "Texas Instruments",
"package": "SOIC-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Digital Comparators",
"datasheet": "https://www.ti.com/cn/lit/gpn/sn54ls682",
"parts": {
"symbol": "sn74ls688dwr.kicad_sym",
"footprint": "sn74ls688dwr.kicad_mod",
"model_3d": "sn74ls688dwr-hero.glb",
"model_3d_plain": "sn74ls688dwr.glb",
"model_3d_step": "sn74ls688dwr-etched.step",
"model_3d_step_plain": "sn74ls688dwr.step",
"lbr": "sn74ls688dwr.lbr"
},
"distributor_links": {
"lcsc": "C2878437",
"digikey": "296-28515-2-ND",
"mouser": "595-SN74LS688DWR"
},
"distributor_check": {
"checked_at": "2026-10-07T02:44:24Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-28515-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74LS688DWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "G̅",
"type": "input",
"description": "Active-low enable input that, when low, allows the P=Q output to go low on equality (function table enable G)."
},
{
"number": "2",
"name": "P0",
"type": "input",
"description": "P word data input bit 0, compared with Q0."
},
{
"number": "3",
"name": "Q0",
"type": "input",
"description": "Q word data input bit 0, compared with P0."
},
{
"number": "4",
"name": "P1",
"type": "input",
"description": "P word data input bit 1, compared with Q1."
},
{
"number": "5",
"name": "Q1",
"type": "input",
"description": "Q word data input bit 1, compared with P1."
},
{
"number": "6",
"name": "P2",
"type": "input",
"description": "P word data input bit 2, compared with Q2."
},
{
"number": "7",
"name": "Q2",
"type": "input",
"description": "Q word data input bit 2, compared with P2."
},
{
"number": "8",
"name": "P3",
"type": "input",
"description": "P word data input bit 3, compared with Q3."
},
{
"number": "9",
"name": "Q3",
"type": "input",
"description": "Q word data input bit 3, compared with P3."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "11",
"name": "P4",
"type": "input",
"description": "P word data input bit 4, compared with Q4."
},
{
"number": "12",
"name": "Q4",
"type": "input",
"description": "Q word data input bit 4, compared with P4."
},
{
"number": "13",
"name": "P5",
"type": "input",
"description": "P word data input bit 5, compared with Q5."
},
{
"number": "14",
"name": "Q5",
"type": "input",
"description": "Q word data input bit 5, compared with P5."
},
{
"number": "15",
"name": "P6",
"type": "input",
"description": "P word data input bit 6, compared with Q6."
},
{
"number": "16",
"name": "Q6",
"type": "input",
"description": "Q word data input bit 6, compared with P6."
},
{
"number": "17",
"name": "P7",
"type": "input",
"description": "P word data input bit 7, compared with Q7."
},
{
"number": "18",
"name": "Q7",
"type": "input",
"description": "Q word data input bit 7, compared with P7."
},
{
"number": "19",
"name": "P=Q",
"type": "output",
"description": "Active-low totem-pole identity output, low when P equals Q and G is low."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Positive supply voltage."
}
],
"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": "vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Only pages 1-3 were read; electrical pages (4-12) were not checked, so pin descriptions contain no n; Datasheet shows the SN74LS688 in a combined 'DW or N package' pinout; DW (SOIC-20) is assumed for th",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 12,
"cost_usd": 0.2672,
"at": "2026-10-07T02:43:59"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/sn54ls682",
"pages": 26,
"sha256": "a0bd34df5b6e904f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "sn74ls688dwr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.3,
12.8,
2.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74ls688dwr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.3,
12.8,
2.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "142bb9613b7d64c9c8d64452cd3912f529610b6252754f1006f27e54712ffcf5",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOIC-20",
"Category": "Logic",
"Pins": "20"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"sn74ls688dwr"
],
"discovery_pitch": "SN74LS688DWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
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"docs/hero.png",
"docs/sn74ls688dwr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
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"visibility": {
"public": true
}
}