component
SN74HC374PW
Public Made by Adomby adom
lingxingic Flip Flops, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "sn74hc374pw",
"version": "0.1.0",
"type": "component",
"description": "lingxingic Flip Flops, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic",
"sn74hc374pw",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"sn74hc374pw.kicad_sym",
"sn74hc374pw.kicad_mod",
"sn74hc374pw.glb",
"sn74hc374pw.step",
"sn74hc374pw.lbr",
"docs/hero.png",
"docs/sn74hc374pw-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sn74hc374pw-hero.glb",
"sn74hc374pw-hero.overlay.json",
"sn74hc374pw-etched.glb"
],
"component": {
"mpn": "SN74HC374PW",
"manufacturer": "lingxingic",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Logic",
"subcategory": "Flip Flops",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923055323693056",
"parts": {
"symbol": "sn74hc374pw.kicad_sym",
"footprint": "sn74hc374pw.kicad_mod",
"model_3d": "sn74hc374pw-hero.glb",
"model_3d_plain": "sn74hc374pw-etched.glb",
"model_3d_step": "sn74hc374pw-etched.step",
"model_3d_step_plain": "sn74hc374pw.step",
"lbr": "sn74hc374pw.lbr"
},
"distributor_links": {
"lcsc": "C22374062"
},
"distributor_check": {
"checked_at": "2026-10-19T04:46:10Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "OE",
"type": "input",
"description": "Active-low output enable; when high, outputs Q0 to Q7 go to high impedance (Z) without changing the stored register state."
},
{
"number": "2",
"name": "Q0",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 0; high impedance while OE is high."
},
{
"number": "3",
"name": "D0",
"type": "input",
"description": "Data input to flip-flop 0, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "4",
"name": "D1",
"type": "input",
"description": "Data input to flip-flop 1, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "5",
"name": "Q1",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 1; high impedance while OE is high."
},
{
"number": "6",
"name": "Q2",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 2; high impedance while OE is high."
},
{
"number": "7",
"name": "D2",
"type": "input",
"description": "Data input to flip-flop 2, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "8",
"name": "D3",
"type": "input",
"description": "Data input to flip-flop 3, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "9",
"name": "Q3",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 3; high impedance while OE is high."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground reference, 0 V."
},
{
"number": "11",
"name": "CP",
"type": "input",
"description": "Clock input; the flip-flops capture D on the low-to-high (rising) clock edge."
},
{
"number": "12",
"name": "Q4",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 4; high impedance while OE is high."
},
{
"number": "13",
"name": "D4",
"type": "input",
"description": "Data input to flip-flop 4, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "14",
"name": "D5",
"type": "input",
"description": "Data input to flip-flop 5, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "15",
"name": "Q5",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 5; high impedance while OE is high."
},
{
"number": "16",
"name": "Q6",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 6; high impedance while OE is high."
},
{
"number": "17",
"name": "D6",
"type": "input",
"description": "Data input to flip-flop 6, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "18",
"name": "D7",
"type": "input",
"description": "Data input to flip-flop 7, which must meet the setup and hold times relative to the rising edge of CP."
},
{
"number": "19",
"name": "Q7",
"type": "tri_state",
"description": "Three-state, non-inverting data output of flip-flop 7; high impedance while OE is high."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; absolute maximum 7.0 V and recommended range 2.0 V to 6.0 V for the SN74HC374."
}
],
"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-number-to-function table (pages 5-6) is generic for the SN74HC/HCT374 and is not split by pa; The ordering table on page 3 lists SN74HC374PW under TSSOP20 (4000 pcs reel), but the extracted text; The datasheet does not label the Q outputs as tri-state in the pin table. They are typed tri_state b"
],
"pages_sent": 21,
"cost_usd": 0.0841,
"at": "2026-10-19T04:43:52"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923055323693056",
"pages": 21,
"sha256": "e6d21ba7a671b3e3",
"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": "sn74hc374pw.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn74hc374pw-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "f58bca12010c5554a1f29fcb1610bae1536a8f7d1e5e0c01f38d4d3a5925ddaf",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}