component
SN74HC373N
Public Made by Adomby adom
lingxingic Latches, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "sn74hc373n",
"version": "0.1.0",
"type": "component",
"description": "lingxingic Latches, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"sn74hc373n",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"sn74hc373n.kicad_sym",
"sn74hc373n.kicad_mod",
"sn74hc373n.glb",
"sn74hc373n.step",
"sn74hc373n.lbr",
"docs/hero.png",
"docs/sn74hc373n-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sn74hc373n-hero.glb",
"sn74hc373n-hero.overlay.json",
"sn74hc373n-etched.glb"
],
"component": {
"mpn": "SN74HC373N",
"manufacturer": "lingxingic",
"package": "DIP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Latches",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921108961116160",
"parts": {
"symbol": "sn74hc373n.kicad_sym",
"footprint": "sn74hc373n.kicad_mod",
"model_3d": "sn74hc373n-hero.glb",
"model_3d_plain": "sn74hc373n-etched.glb",
"model_3d_step": "sn74hc373n-etched.step",
"model_3d_step_plain": "sn74hc373n.step",
"lbr": "sn74hc373n.lbr"
},
"distributor_links": {
"lcsc": "C22374123",
"digikey": "296-1591-5-ND",
"mouser": "595-SN74HC373N"
},
"distributor_check": {
"checked_at": "2026-10-15T14:06:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-1591-5-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74HC373N",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OE",
"type": "input",
"description": "Active-low common three-state output enable; a high level puts outputs Q0-Q7 in high impedance and does not change the latch contents."
},
{
"number": "2",
"name": "Q0",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 0, high impedance when OE is high."
},
{
"number": "3",
"name": "D0",
"type": "input",
"description": "Data input for bit 0; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "4",
"name": "D1",
"type": "input",
"description": "Data input for bit 1; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "5",
"name": "Q1",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 1, high impedance when OE is high."
},
{
"number": "6",
"name": "Q2",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 2, high impedance when OE is high."
},
{
"number": "7",
"name": "D2",
"type": "input",
"description": "Data input for bit 2; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "8",
"name": "D3",
"type": "input",
"description": "Data input for bit 3; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "9",
"name": "Q3",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 3, high impedance when OE is high."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference (0 V)."
},
{
"number": "11",
"name": "LE",
"type": "input",
"description": "Latch enable input, active high; while high the latch is transparent, and it stores the data present before the falling edge of LE."
},
{
"number": "12",
"name": "Q4",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 4, high impedance when OE is high."
},
{
"number": "13",
"name": "D4",
"type": "input",
"description": "Data input for bit 4; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "14",
"name": "D5",
"type": "input",
"description": "Data input for bit 5; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "15",
"name": "Q5",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 5, high impedance when OE is high."
},
{
"number": "16",
"name": "Q6",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 6, high impedance when OE is high."
},
{
"number": "17",
"name": "D6",
"type": "input",
"description": "Data input for bit 6; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "18",
"name": "D7",
"type": "input",
"description": "Data input for bit 7; with LE high the latch is transparent, and the input has clamp diodes so it can be driven above VCC through a current-limiting resistor."
},
{
"number": "19",
"name": "Q7",
"type": "tri_state",
"description": "Non-inverting three-state latch output for bit 7, high impedance when OE is high."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Power supply: SN74HC373 is specified at 2.0-6.0 V and SN74HCT373 at 4.5-5.5 V, with an absolute maximum of 7.0 V."
}
],
"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 pin-layout figure (page 5) text extraction is garbled, so the pin numbers were taken from the pi; The datasheet does not state a pin-level electrical limit for the individual Q, D, LE or OE pins bey"
],
"pages_sent": 22,
"cost_usd": 0.076,
"at": "2026-10-15T14:06:22"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921108961116160",
"pages": 22,
"sha256": "0f3c8499ba7a7a92",
"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": "sn74hc373n.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,
26.162,
6.98
],
"zmin_mm": -3.3,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "ca359c9b9e0ce94efcb6c96866513f659eef6517d629ace3c4a0a779f6fd57bb",
"checked": "2026-10-15",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74hc373n-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": [
7.874,
26.162,
6.98
],
"zmin_mm": -3.3,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "01da268b2f922fa0be83c9ff456209477e59df4a80bdf57b1ed0804688ea75ef",
"checked": "2026-10-15",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}