component
SN74LV244APWT
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# SN74LV244APWT++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · TSSOP-20++SN74LV244APWT from Texas Instruments, in a TSSOP-20. 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 group 1; transfers data when LOW, places outputs in high impedance when HIGH |+| 2 | 1A1 | input | Input to first buffer of group 1 |+| 3 | 2Y4 | output | Output from fourth buffer of group 2 |+| 4 | 1A2 | input | Input to second buffer of group 1 |+| 5 | 2Y3 | output | Output from third buffer of group 2 |+| 6 | 1A3 | input | Input to third buffer of group 1 |+| 7 | 2Y2 | output | Output from second buffer of group 2 |+| 8 | 1A4 | input | Input to fourth buffer of group 1 |+| 9 | 2Y1 | output | Output from first buffer of group 2 |+| 10 | GND | power_in | Ground connection |+| 11 | 2A1 | input | Input to first buffer of group 2 |+| 12 | 1Y4 | output | Output from fourth buffer of group 1 |+| 13 | 2A2 | input | Input to second buffer of group 2 |+| 14 | 1Y3 | output | Output from third buffer of group 1 |+| 15 | 2A3 | input | Input to third buffer of group 2 |+| 16 | 1Y2 | output | Output from second buffer of group 1 |+| 17 | 2A4 | input | Input to fourth buffer of group 2 |+| 18 | 1Y1 | output | Output from first buffer of group 1 |+| 19 | 2OE | input | Output enable input for group 2; transfers data when LOW, places outputs in high impedance when HIGH |+| 20 | VCC | power_in | Positive power supply voltage |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74LV244APWT`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `sn74lv244apwt-etched.step` / `sn74lv244apwt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv244apwt.step` / `sn74lv244apwt.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/sn74lv244a) (39 pp, sha256 `d415bed908dc6f14`, retrieved 2026-10-07, 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/sn74lv244apwt-datasheet.pdf)
page.jsonadded+271@@ -0,0 +1,271 @@+{+ "slug": "sn74lv244apwt",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74lv244apwt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74lv244apwt.kicad_sym",+ "sn74lv244apwt.kicad_mod",+ "sn74lv244apwt.glb",+ "sn74lv244apwt.step",+ "sn74lv244apwt.lbr",+ "docs/hero.png",+ "docs/sn74lv244apwt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74lv244apwt-hero.glb",+ "sn74lv244apwt-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74LV244APWT",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lv244a",+ "parts": {+ "symbol": "sn74lv244apwt.kicad_sym",+ "footprint": "sn74lv244apwt.kicad_mod",+ "model_3d": "sn74lv244apwt-hero.glb",+ "model_3d_plain": "sn74lv244apwt.glb",+ "model_3d_step": "sn74lv244apwt-etched.step",+ "model_3d_step_plain": "sn74lv244apwt.step",+ "lbr": "sn74lv244apwt.lbr"+ },+ "distributor_links": {+ "lcsc": "C1848222",+ "digikey": "296-SN74LV244APWTTR-ND",+ "mouser": "595-SN74LV244APWT"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T02:58:15Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-SN74LV244APWTTR-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "595-SN74LV244APWT",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "1OE",+ "type": "input",+ "description": "Output enable input for group 1; transfers data when LOW, places outputs in high impedance when HIGH"+ },+ {+ "number": "2",+ "name": "1A1",+ "type": "input",+ "description": "Input to first buffer of group 1"+ },+ {+ "number": "3",+ "name": "2Y4",+ "type": "output",+ "description": "Output from fourth buffer of group 2"+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "input",+ "description": "Input to second buffer of group 1"+ },+ {+ "number": "5",+ "name": "2Y3",+ "type": "output",+ "description": "Output from third buffer of group 2"+ },+ {+ "number": "6",+ "name": "1A3",+ "type": "input",+ "description": "Input to third buffer of group 1"+ },+ {+ "number": "7",+ "name": "2Y2",+ "type": "output",+ "description": "Output from second buffer of group 2"+ },+ {+ "number": "8",+ "name": "1A4",+ "type": "input",+ "description": "Input to fourth buffer of group 1"+ },+ {+ "number": "9",+ "name": "2Y1",+ "type": "output",+ "description": "Output from first buffer of group 2"+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "11",+ "name": "2A1",+ "type": "input",+ "description": "Input to first buffer of group 2"+ },+ {+ "number": "12",+ "name": "1Y4",+ "type": "output",+ "description": "Output from fourth buffer of group 1"+ },+ {+ "number": "13",+ "name": "2A2",+ "type": "input",+ "description": "Input to second buffer of group 2"+ },+ {+ "number": "14",+ "name": "1Y3",+ "type": "output",+ "description": "Output from third buffer of group 1"+ },+ {+ "number": "15",+ "name": "2A3",+ "type": "input",+ "description": "Input to third buffer of group 2"+ },+ {+ "number": "16",+ "name": "1Y2",+ "type": "output",+ "description": "Output from second buffer of group 1"+ },+ {+ "number": "17",+ "name": "2A4",+ "type": "input",+ "description": "Input to fourth buffer of group 2"+ },+ {+ "number": "18",+ "name": "1Y1",+ "type": "output",+ "description": "Output from first buffer of group 1"+ },+ {+ "number": "19",+ "name": "2OE",+ "type": "input",+ "description": "Output enable input for group 2; transfers data when LOW, places outputs in high impedance when HIGH"+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply voltage"+ }+ ],+ "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": [],+ "pages_sent": 15,+ "cost_usd": 0.1774,+ "at": "2026-10-07T02:57:58"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74lv244a",+ "pages": 39,+ "sha256": "d415bed908dc6f14",+ "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": "sn74lv244apwt.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,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74lv244apwt-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,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "b86b7cf5b9547426e4ff03bd786875931b445b7abc5e5d5c9b352f38224d6315",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}