component
SN74HCT574DWR
Public Made by Adomby adom
Texas Instruments Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+57@@ -0,0 +1,57 @@+# SN74HCT574DWR++**Texas Instruments** · Flip Flops · SOIC-20-300mil++SN74HCT574DWR from Texas Instruments, in a SOIC-20-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | 1OE | input | Output Enable input for the first group of flip-flops, active low |+| 2 | 1A1 | input | Data input 1A1 for the first flip-flop of the first group |+| 3 | 2Y4 | tri_state | Tri-state output 2Y4 of the fourth flip-flop in the second group |+| 4 | 1A2 | input | Data input 1A2 for the second flip-flop of the first group |+| 5 | 2Y3 | tri_state | Tri-state output 2Y3 of the third flip-flop in the second group |+| 6 | 1A3 | input | Data input 1A3 for the third flip-flop of the first group |+| 7 | 2Y2 | tri_state | Tri-state output 2Y2 of the second flip-flop in the second group |+| 8 | 1A4 | input | Data input 1A4 for the fourth flip-flop of the first group |+| 9 | 2Y1 | tri_state | Tri-state output 2Y1 of the first flip-flop in the second group |+| 10 | GND | power_in | Ground connection |+| 11 | 2A1 | input | Data input 2A1 for the first flip-flop of the second group |+| 12 | 1Y4 | tri_state | Tri-state output 1Y4 of the fourth flip-flop in the first group |+| 13 | 2A2 | input | Data input 2A2 for the second flip-flop of the second group |+| 14 | 1Y3 | tri_state | Tri-state output 1Y3 of the third flip-flop in the first group |+| 15 | 2A3 | input | Data input 2A3 for the third flip-flop of the second group |+| 16 | 1Y2 | tri_state | Tri-state output 1Y2 of the second flip-flop in the first group |+| 17 | 2A4 | input | Data input 2A4 for the fourth flip-flop of the second group |+| 18 | 1Y1 | tri_state | Tri-state output 1Y1 of the first flip-flop in the first group |+| 19 | 2OE | input | Output Enable input for the second group of flip-flops, active low |+| 20 | VCC | power_in | Positive power supply voltage, 4.5V to 5.5V |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-20-300mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74HCT574DWR`+- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`+- 3D model: SOIC-20-300mil (KiCad packages3D, STEP)+- 3D model files: `sn74hct574dwr-etched.step` / `sn74hct574dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hct574dwr.step` / `sn74hct574dwr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn74hct574) (30 pp, sha256 `3288661ec63c48f4`, retrieved 2026-10-05, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/sn74hct574dwr-datasheet.pdf)
page.jsonadded+232@@ -0,0 +1,232 @@+{+ "slug": "sn74hct574dwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Flip Flops, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74hct574dwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74hct574dwr.kicad_sym",+ "sn74hct574dwr.kicad_mod",+ "sn74hct574dwr.glb",+ "sn74hct574dwr.step",+ "sn74hct574dwr.lbr",+ "docs/hero.png",+ "docs/sn74hct574dwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74hct574dwr-hero.glb",+ "sn74hct574dwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74HCT574DWR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-20-300mil",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Flip Flops",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74hct574",+ "parts": {+ "symbol": "sn74hct574dwr.kicad_sym",+ "footprint": "sn74hct574dwr.kicad_mod",+ "model_3d": "sn74hct574dwr-hero.glb",+ "model_3d_plain": "sn74hct574dwr.glb",+ "model_3d_step": "sn74hct574dwr-etched.step",+ "model_3d_step_plain": "sn74hct574dwr.step",+ "lbr": "sn74hct574dwr.lbr"+ },+ "distributor_links": {+ "lcsc": 6788,+ "digikey": "296-14871-2-ND",+ "mouser": "595-SN74HCT574DWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T22:49:37Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-14871-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74HCT574DWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "1OE",+ "type": "input",+ "description": "Output Enable input for the first group of flip-flops, active low"+ },+ {+ "number": "2",+ "name": "1A1",+ "type": "input",+ "description": "Data input 1A1 for the first flip-flop of the first group"+ },+ {+ "number": "3",+ "name": "2Y4",+ "type": "tri_state",+ "description": "Tri-state output 2Y4 of the fourth flip-flop in the second group"+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "input",+ "description": "Data input 1A2 for the second flip-flop of the first group"+ },+ {+ "number": "5",+ "name": "2Y3",+ "type": "tri_state",+ "description": "Tri-state output 2Y3 of the third flip-flop in the second group"+ },+ {+ "number": "6",+ "name": "1A3",+ "type": "input",+ "description": "Data input 1A3 for the third flip-flop of the first group"+ },+ {+ "number": "7",+ "name": "2Y2",+ "type": "tri_state",+ "description": "Tri-state output 2Y2 of the second flip-flop in the second group"+ },+ {+ "number": "8",+ "name": "1A4",+ "type": "input",+ "description": "Data input 1A4 for the fourth flip-flop of the first group"+ },+ {+ "number": "9",+ "name": "2Y1",+ "type": "tri_state",+ "description": "Tri-state output 2Y1 of the first flip-flop in the second group"+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "11",+ "name": "2A1",+ "type": "input",+ "description": "Data input 2A1 for the first flip-flop of the second group"+ },+ {+ "number": "12",+ "name": "1Y4",+ "type": "tri_state",+ "description": "Tri-state output 1Y4 of the fourth flip-flop in the first group"+ },+ {+ "number": "13",+ "name": "2A2",+ "type": "input",+ "description": "Data input 2A2 for the second flip-flop of the second group"+ },+ {+ "number": "14",+ "name": "1Y3",+ "type": "tri_state",+ "description": "Tri-state output 1Y3 of the third flip-flop in the first group"+ },+ {+ "number": "15",+ "name": "2A3",+ "type": "input",+ "description": "Data input 2A3 for the third flip-flop of the second group"+ },+ {+ "number": "16",+ "name": "1Y2",+ "type": "tri_state",+ "description": "Tri-state output 1Y2 of the second flip-flop in the first group"+ },+ {+ "number": "17",+ "name": "2A4",+ "type": "input",+ "description": "Data input 2A4 for the fourth flip-flop of the second group"+ },+ {+ "number": "18",+ "name": "1Y1",+ "type": "tri_state",+ "description": "Tri-state output 1Y1 of the first flip-flop in the first group"+ },+ {+ "number": "19",+ "name": "2OE",+ "type": "input",+ "description": "Output Enable input for the second group of flip-flops, active low"+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply voltage, 4.5V to 5.5V"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet timing specifications (Pages 5-6) and functional description (Page 8) reference a CLK "+ ],+ "pages_sent": 30,+ "cost_usd": 0.1867,+ "at": "2026-10-05T22:49:21"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74hct574",+ "pages": 30,+ "sha256": "3288661ec63c48f4",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}