component
SN74HC42 BCD-to-Decimal Decoder
Public Made by Adomby adom
BCD-to-decimal (1-of-10) decoder with active-low outputs, 74HC CMOS.
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page.json+168−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "sn74hc42",+ "title": "SN74HC42 BCD-to-Decimal Decoder",+ "brief": "BCD-to-decimal (1-of-10) decoder with active-low outputs, 74HC CMOS.", "version": "0.1.0",- "type": "component",- "description": "BCD-to-decimal (1-of-10) decoder with active-low outputs, 74HC CMOS.",+ "license": "CC-BY-SA-4.0", "tags": [ "logic", "decoder",@@ -11,6 +14,168 @@ "ti", "soic-16" ],+ "component": {+ "mpn": "SN74HC42",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Decoder / Demultiplexer",+ "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc42.pdf",+ "parts": {+ "symbol": "sn74hc42.kicad_sym",+ "footprint": "sn74hc42.kicad_mod",+ "model_3d": "sn74hc42.glb",+ "model_3d_step": "sn74hc42.step"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "Y0",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0000. LOW when A3:A0 = 0; otherwise HIGH. LSTTL fan-out: 10 loads."+ },+ {+ "number": "2",+ "name": "Y1",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0001."+ },+ {+ "number": "3",+ "name": "Y2",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0010."+ },+ {+ "number": "4",+ "name": "Y3",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0011."+ },+ {+ "number": "5",+ "name": "Y4",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0100."+ },+ {+ "number": "6",+ "name": "Y5",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0101."+ },+ {+ "number": "7",+ "name": "Y6",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0110."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V)."+ },+ {+ "number": "9",+ "name": "Y7",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 0111."+ },+ {+ "number": "10",+ "name": "Y8",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 1000."+ },+ {+ "number": "11",+ "name": "Y9",+ "type": "output",+ "description": "Active-LOW decoded output for BCD input 1001."+ },+ {+ "number": "12",+ "name": "A3",+ "type": "input",+ "description": "BCD address input, bit 3 (MSB). HC: VIH \u2265 3.15 V @ VCC=4.5 V; VIL \u2264 1.35 V. HCT: VIH \u2265 2 V, VIL \u2264 0.8 V @ VCC=4.5-5.5 V. Input leakage \u2264 1 \u00b5A."+ },+ {+ "number": "13",+ "name": "A2",+ "type": "input",+ "description": "BCD address input, bit 2."+ },+ {+ "number": "14",+ "name": "A1",+ "type": "input",+ "description": "BCD address input, bit 1."+ },+ {+ "number": "15",+ "name": "A0",+ "type": "input",+ "description": "BCD address input, bit 0 (LSB)."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply. HC: 2-6 V. HCT: 4.5-5.5 V. Absolute max \u22120.5 V to 7 V. Quiescent ICC \u2264 8 \u00b5A typ (80 \u00b5A max over temp)."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/cd74hc42.pdf",+ "pages": 12,+ "sha256": "adc98c4caa771189",+ "source_tier": "mfr"+ },+ "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"+ }+ },+ "metadata": {+ "specs": {+ "Type": "BCD-to-decimal (1-of-10) decoder",+ "Logic family": "74HC (CMOS)",+ "Outputs": "10, active-low",+ "Supply voltage": "2 V to 6 V",+ "Propagation delay": "20 ns typ at 5 V",+ "Operating temperature": "-40 C to 85 C"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "BCD to decimal",+ "1-of-10 decoder",+ "BCD decoder",+ "active-low decoder"+ ],+ "discovery_pitch": "Decode a 4-bit BCD input to one of ten active-low outputs in the fast 74HC family.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -27,10 +192,5 @@ "docs/sn74hc42-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }