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SN74LS390D
Public Made by Adomby adom
Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# SN74LS390D++**Texas Instruments** · Counters, Dividers · SOIC-16++SN74LS390D from Texas Instruments, in a SOIC-16. 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 | 1CKA | input | Counter 1 clock input A for the divide-by-2 section (falling-edge triggered per logic diagram, input A). |+| 2 | 1CLR | input | Direct clear input for counter 1, which resets all its outputs low. |+| 3 | 1QA | output | Counter 1 output QA, the divide-by-2 output. |+| 4 | 1CKB | input | Counter 1 clock input B for the divide-by-5 section. |+| 5 | 1QB | output | Counter 1 output QB of the divide-by-5 section. |+| 6 | 1QC | output | Counter 1 output QC of the divide-by-5 section. |+| 7 | 1QD | output | Counter 1 output QD of the divide-by-5 section. |+| 8 | GND | power_in | Ground. |+| 9 | 2QD | output | Counter 2 output QD of the divide-by-5 section. |+| 10 | 2QC | output | Counter 2 output QC of the divide-by-5 section. |+| 11 | 2QB | output | Counter 2 output QB of the divide-by-5 section. |+| 12 | 2CKB | input | Counter 2 clock input B for the divide-by-5 section. |+| 13 | 2QA | output | Counter 2 output QA, the divide-by-2 output. |+| 14 | 2CLR | input | Direct clear input for counter 2, which resets all its outputs low. |+| 15 | 2CKA | input | Counter 2 clock input A for the divide-by-2 section. |+| 16 | VCC | power_in | Positive supply voltage. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74LS390D`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `sn74ls390d-etched.step` / `sn74ls390d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ls390d.step` / `sn74ls390d.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/sn74ls393) (37 pp, sha256 `01ffbca0db1f34ba`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sn74ls390d-datasheet.pdf)
page.jsonadded+249@@ -0,0 +1,249 @@+{+ "slug": "sn74ls390d",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74ls390d",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74ls390d.kicad_sym",+ "sn74ls390d.kicad_mod",+ "sn74ls390d.glb",+ "sn74ls390d.step",+ "sn74ls390d.lbr",+ "docs/hero.png",+ "docs/sn74ls390d-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74ls390d-hero.glb",+ "sn74ls390d-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74LS390D",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Counters, Dividers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74ls393",+ "parts": {+ "symbol": "sn74ls390d.kicad_sym",+ "footprint": "sn74ls390d.kicad_mod",+ "model_3d": "sn74ls390d-hero.glb",+ "model_3d_plain": "sn74ls390d.glb",+ "model_3d_step": "sn74ls390d-etched.step",+ "model_3d_step_plain": "sn74ls390d.step",+ "lbr": "sn74ls390d.lbr"+ },+ "distributor_links": {+ "lcsc": "C1548010",+ "digikey": "296-34004-5-ND",+ "mouser": "595-SN74LS390D"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T18:31:12Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-34004-5-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74LS390D",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "1CKA",+ "type": "input",+ "description": "Counter 1 clock input A for the divide-by-2 section (falling-edge triggered per logic diagram, input A)."+ },+ {+ "number": "2",+ "name": "1CLR",+ "type": "input",+ "description": "Direct clear input for counter 1, which resets all its outputs low."+ },+ {+ "number": "3",+ "name": "1QA",+ "type": "output",+ "description": "Counter 1 output QA, the divide-by-2 output."+ },+ {+ "number": "4",+ "name": "1CKB",+ "type": "input",+ "description": "Counter 1 clock input B for the divide-by-5 section."+ },+ {+ "number": "5",+ "name": "1QB",+ "type": "output",+ "description": "Counter 1 output QB of the divide-by-5 section."+ },+ {+ "number": "6",+ "name": "1QC",+ "type": "output",+ "description": "Counter 1 output QC of the divide-by-5 section."+ },+ {+ "number": "7",+ "name": "1QD",+ "type": "output",+ "description": "Counter 1 output QD of the divide-by-5 section."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "9",+ "name": "2QD",+ "type": "output",+ "description": "Counter 2 output QD of the divide-by-5 section."+ },+ {+ "number": "10",+ "name": "2QC",+ "type": "output",+ "description": "Counter 2 output QC of the divide-by-5 section."+ },+ {+ "number": "11",+ "name": "2QB",+ "type": "output",+ "description": "Counter 2 output QB of the divide-by-5 section."+ },+ {+ "number": "12",+ "name": "2CKB",+ "type": "input",+ "description": "Counter 2 clock input B for the divide-by-5 section."+ },+ {+ "number": "13",+ "name": "2QA",+ "type": "output",+ "description": "Counter 2 output QA, the divide-by-2 output."+ },+ {+ "number": "14",+ "name": "2CLR",+ "type": "input",+ "description": "Direct clear input for counter 2, which resets all its outputs low."+ },+ {+ "number": "15",+ "name": "2CKA",+ "type": "input",+ "description": "Counter 2 clock input A for the divide-by-2 section."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply voltage."+ }+ ],+ "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: The supplied datasheet text has no electrical limits, so pin descriptions state functions only. The ; The SOIC-16 (D) pinout comes from the top-view drawing on page 1, which is shared by the J, W, N and",+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 37,+ "cost_usd": 0.546,+ "at": "2026-10-08T18:30:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74ls393",+ "pages": 37,+ "sha256": "01ffbca0db1f34ba",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74ls390d.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74ls390d-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 9.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6cbc325eb0041645857becb81100032d13a7c2760d806130533dcdde7aad2f46",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}