component
MM74HCT273WM
Public Made by Adomby adom
onsemi Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "mm74hct273wm",
"version": "0.1.0",
"type": "component",
"description": "onsemi Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"logic ics",
"mm74hct273wm",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mm74hct273wm.kicad_sym",
"mm74hct273wm.kicad_mod",
"mm74hct273wm.glb",
"mm74hct273wm.step",
"mm74hct273wm.lbr",
"docs/hero.png",
"docs/mm74hct273wm-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mm74hct273wm-hero.glb",
"mm74hct273wm-hero.overlay.json",
"mm74hct273wm-etched.glb"
],
"component": {
"mpn": "MM74HCT273WM",
"manufacturer": "onsemi",
"package": "SOIC-20-300mil",
"pin_count": 20,
"category": "Logic ICs",
"subcategory": "Flip Flops",
"datasheet": "https://www.onsemi.com/pdf/datasheet/mm74hct273wm-d.pdf",
"parts": {
"symbol": "mm74hct273wm.kicad_sym",
"footprint": "mm74hct273wm.kicad_mod",
"model_3d": "mm74hct273wm-hero.glb",
"model_3d_plain": "mm74hct273wm-etched.glb",
"model_3d_step": "mm74hct273wm-etched.step",
"model_3d_step_plain": "mm74hct273wm.step",
"lbr": "mm74hct273wm.lbr"
},
"distributor_links": {
"lcsc": "C906745",
"digikey": "2156-MM74HCT273WM-ND",
"mouser": "512-MM74HCT273WM"
},
"distributor_check": {
"checked_at": "2026-10-28T20:57:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "2156-MM74HCT273WM-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "512-MM74HCT273WM",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "CLEAR",
"type": "input",
"description": "Common asynchronous clear input that forces all Q outputs LOW when it is LOW."
},
{
"number": "2",
"name": "Q1",
"type": "output",
"description": "Flip-flop 1 output, takes the level of D1 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "3",
"name": "D1",
"type": "input",
"description": "Flip-flop 1 data input, transferred to Q1 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "4",
"name": "D2",
"type": "input",
"description": "Flip-flop 2 data input, transferred to Q2 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "5",
"name": "Q2",
"type": "output",
"description": "Flip-flop 2 output, takes the level of D2 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "6",
"name": "Q3",
"type": "output",
"description": "Flip-flop 3 output, takes the level of D3 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "7",
"name": "D3",
"type": "input",
"description": "Flip-flop 3 data input, transferred to Q3 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "8",
"name": "D4",
"type": "input",
"description": "Flip-flop 4 data input, transferred to Q4 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "9",
"name": "Q4",
"type": "output",
"description": "Flip-flop 4 output, takes the level of D4 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground, 0 V reference for all voltages."
},
{
"number": "11",
"name": "CLOCK",
"type": "input",
"description": "Common positive-edge clock input for all eight flip-flops; input rise/fall time max 500 ns."
},
{
"number": "12",
"name": "Q5",
"type": "output",
"description": "Flip-flop 5 output, takes the level of D5 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "13",
"name": "D5",
"type": "input",
"description": "Flip-flop 5 data input, transferred to Q5 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "14",
"name": "D6",
"type": "input",
"description": "Flip-flop 6 data input, transferred to Q6 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "15",
"name": "Q6",
"type": "output",
"description": "Flip-flop 6 output, takes the level of D6 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "16",
"name": "Q7",
"type": "output",
"description": "Flip-flop 7 output, takes the level of D7 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "17",
"name": "D7",
"type": "input",
"description": "Flip-flop 7 data input, transferred to Q7 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "18",
"name": "D8",
"type": "input",
"description": "Flip-flop 8 data input, transferred to Q8 on the rising clock edge given the specified set-up and hold time."
},
{
"number": "19",
"name": "Q8",
"type": "output",
"description": "Flip-flop 8 output, takes the level of D8 on the positive-going clock transition; drives 4.0 mA at VCC 4.5V."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Positive supply voltage, 4.5 V to 5.5 V recommended (absolute max 7.0 V)."
}
],
"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": "text+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin 15 is printed as 'R6' in the connection diagram, apparently a typo or rendering artifact for Q6.; The datasheet has one connection diagram for DIP, SOIC, SOP and TSSOP. The WM part is the M20B 0.300",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 10,
"cost_usd": 0.2634,
"at": "2026-10-28T20:57:13"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/mm74hct273wm-d.pdf",
"pages": 10,
"sha256": "e3d30a4b914e9c01",
"source_tier": "mfr"
},
"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": "mm74hct273wm.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": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mm74hct273wm-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": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3d5bcdad93ec7767b484a39a3b711aeb6f77e383a7723464f720a194983524c5",
"checked": "2026-10-28",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}