component
SN74AC373N
Public Made by Adomby adom
Texas Instruments Latches, PDIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268
{
"slug": "sn74ac373n",
"version": "0.1.0",
"type": "component",
"description": "Texas Instruments Latches, PDIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"sn74ac373n",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"sn74ac373n.kicad_sym",
"sn74ac373n.kicad_mod",
"sn74ac373n.glb",
"sn74ac373n.step",
"sn74ac373n.lbr",
"docs/hero.png",
"docs/sn74ac373n-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sn74ac373n-hero.glb",
"sn74ac373n-hero.overlay.json",
"sn74ac373n-etched.glb"
],
"component": {
"mpn": "SN74AC373N",
"manufacturer": "Texas Instruments",
"package": "PDIP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Latches",
"datasheet": "https://www.ti.com/cn/lit/gpn/sn74ac373",
"parts": {
"symbol": "sn74ac373n.kicad_sym",
"footprint": "sn74ac373n.kicad_mod",
"model_3d": "sn74ac373n-hero.glb",
"model_3d_plain": "sn74ac373n-etched.glb",
"model_3d_step": "sn74ac373n-etched.step",
"model_3d_step_plain": "sn74ac373n.step",
"lbr": "sn74ac373n.lbr"
},
"distributor_links": {
"lcsc": "C1523288",
"digikey": "296-26376-5-ND",
"mouser": "595-SN74AC373N"
},
"distributor_check": {
"checked_at": "2026-10-16T00:49:03Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-26376-5-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-SN74AC373N",
"status": "found",
"lifecycle": "End of Life"
}
},
"pins": [
{
"number": "1",
"name": "OE",
"type": "input",
"description": "Output enable: when OE is high the eight Q outputs go to the high-impedance state, and OE must be tied to VCC through a pullup resistor for the specified high-impedance state during power up or power down."
},
{
"number": "2",
"name": "1Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 1, which follows 1D while LE is high and holds its latched level when LE goes low."
},
{
"number": "3",
"name": "1D",
"type": "input",
"description": "Data input to latch 1, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "4",
"name": "2D",
"type": "input",
"description": "Data input to latch 2, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "5",
"name": "2Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 2, which follows 2D while LE is high and holds its latched level when LE goes low."
},
{
"number": "6",
"name": "3Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 3, which follows 3D while LE is high and holds its latched level when LE goes low."
},
{
"number": "7",
"name": "3D",
"type": "input",
"description": "Data input to latch 3, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "8",
"name": "4D",
"type": "input",
"description": "Data input to latch 4, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "9",
"name": "4Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 4, which follows 4D while LE is high and holds its latched level when LE goes low."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "11",
"name": "LE",
"type": "input",
"description": "Latch enable: when LE is high the Q outputs follow the D inputs, and when LE is taken low the Q outputs latch the logic levels present at the D inputs."
},
{
"number": "12",
"name": "5Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 5, which follows 5D while LE is high and holds its latched level when LE goes low."
},
{
"number": "13",
"name": "5D",
"type": "input",
"description": "Data input to latch 5, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "14",
"name": "6D",
"type": "input",
"description": "Data input to latch 6, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "15",
"name": "6Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 6, which follows 6D while LE is high and holds its latched level when LE goes low."
},
{
"number": "16",
"name": "7Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 7, which follows 7D while LE is high and holds its latched level when LE goes low."
},
{
"number": "17",
"name": "7D",
"type": "input",
"description": "Data input to latch 7, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "18",
"name": "8D",
"type": "input",
"description": "Data input to latch 8, which is sampled while LE is high and must meet the setup and hold times referenced to the falling edge of LE."
},
{
"number": "19",
"name": "8Q",
"type": "tri_state",
"description": "Three-state noninverting latch output 8, which follows 8D while LE is high and holds its latched level when LE goes low."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Power supply pin; the recommended supply range is 2 V to 6 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 table (Table 3-1) column header lists SSOP, TVSOP, SOIC, SO, TSSOP and VQFN, not PDIP by nam; The datasheet's thermal pad row (VQFN column) was excluded because the PDIP-20 package has no therma; Q outputs are typed as tri_state because the datasheet describes them as three-state outputs; the pi"
],
"pages_sent": 32,
"cost_usd": 0.0913,
"at": "2026-10-16T00:48:46"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/sn74ac373",
"pages": 32,
"sha256": "bcc4551bd99a97ba",
"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": "sn74ac373n.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": "2026-10-16",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74ac373n-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": "629d273bd2d46bb836864657fe0129ebf87d1072d860d19c7f99ef84e7fe4d4e",
"checked": "2026-10-16",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}