component
SN74LS21DR
Public Made by Adomby adom
Texas Instruments Gates, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+152−8@@ -1,13 +1,162 @@ {+ "schema_version": 1,+ "type": "component", "slug": "sn74ls21dr",+ "title": "SN74LS21DR",+ "brief": "Texas Instruments Gates, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "Texas Instruments Gates, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "logic", "sn74ls21dr" ],+ "component": {+ "mpn": "SN74LS21DR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-14",+ "pin_count": 14,+ "category": "Logic",+ "subcategory": "Gates",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ls21.pdf",+ "parts": {+ "symbol": "sn74ls21dr.kicad_sym",+ "footprint": "sn74ls21dr.kicad_mod",+ "model_3d": "sn74ls21dr.glb",+ "model_3d_step": "sn74ls21dr.step",+ "lbr": "sn74ls21dr.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "1A",+ "type": "input",+ "description": "Gate 1 input A. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V. Input current IIH = 20 uA max at 2.7 V; IIL = -0.4 mA max at 0.4 V."+ },+ {+ "number": "2",+ "name": "1B",+ "type": "input",+ "description": "Gate 1 input B. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection. Leave floating or tie to a convenient net."+ },+ {+ "number": "4",+ "name": "1C",+ "type": "input",+ "description": "Gate 1 input C. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "5",+ "name": "1D",+ "type": "input",+ "description": "Gate 1 input D. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "6",+ "name": "1Y",+ "type": "output",+ "description": "Gate 1 output. Y = 1A AND 1B AND 1C AND 1D (positive logic). LSTTL totem-pole output; VOH >= 2.7 V at IOH = -0.4 mA; VOL <= 0.5 V at IOL = 8 mA."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference (0 V)."+ },+ {+ "number": "8",+ "name": "2Y",+ "type": "output",+ "description": "Gate 2 output. Y = 2A AND 2B AND 2C AND 2D (positive logic). LSTTL totem-pole output; VOH >= 2.7 V at IOH = -0.4 mA; VOL <= 0.5 V at IOL = 8 mA."+ },+ {+ "number": "9",+ "name": "2A",+ "type": "input",+ "description": "Gate 2 input A. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "10",+ "name": "2B",+ "type": "input",+ "description": "Gate 2 input B. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "11",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection. Leave floating or tie to a convenient net."+ },+ {+ "number": "12",+ "name": "2C",+ "type": "input",+ "description": "Gate 2 input C. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "13",+ "name": "2D",+ "type": "input",+ "description": "Gate 2 input D. LSTTL logic input; VIH >= 2 V, VIL <= 0.8 V."+ },+ {+ "number": "14",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply. Recommended 4.75-5.25 V (SN74LS21), absolute maximum 7 V. Typical ICCH = 1.2 mA, ICCL = 2.2 mA."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74ls21.pdf",+ "pages": 20,+ "sha256": "de3373b5914eb45e",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 14,+ "described": 14,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "Texas Instruments",+ "Package": "SOIC-14",+ "Category": "Logic",+ "Pins": "14"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "sn74ls21dr"+ ],+ "discovery_pitch": "SN74LS21DR (Texas Instruments) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +174,5 @@ "docs/sn74ls21dr-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }