component
SN74HC237
Public Made by Adomby adom
TI 3-to-8 line decoder/demux with address latch, SOIC-16. Active-high outputs, latch-enable. HC 2-6 V. Datasheet-verified.
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page.json+170−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "sn74hc237",+ "title": "SN74HC237",+ "brief": "TI 3-to-8 line decoder/demux with address latch, SOIC-16. Active-high outputs, latch-enable. HC 2-6 V. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI 3-to-8 line decoder/demux with address latch, SOIC-16. Active-high outputs, latch-enable. HC 2-6 V. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "logic",@@ -13,6 +16,170 @@ "soic-16", "texas-instruments" ],+ "component": {+ "mpn": "SN74HC237",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic IC",+ "subcategory": "3-to-8 decoder with address latch",+ "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc237.pdf",+ "parts": {+ "symbol": "sn74hc237.kicad_sym",+ "footprint": "sn74hc237.kicad_mod",+ "model_3d": "sn74hc237.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "A0",+ "type": "input",+ "description": "Address select input bit 0 (LSB). Combined with A1 and A2 selects which of eight Y outputs is driven high. Latched by LE; transparent when LE is low, held on the LE low-to-high transition."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address select input bit 1. Combined with A0 and A2 selects which of eight Y outputs is driven high. Latched by LE."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address select input bit 2 (MSB). Combined with A0 and A1 selects which of eight Y outputs is driven high. Latched by LE."+ },+ {+ "number": "4",+ "name": "LE",+ "type": "input",+ "description": "Latch Enable, active low. When LE is low the address inputs A0-A2 pass transparently to the decoder; on the low-to-high transition of LE the current address is latched and further changes on A0-A2 are ignored."+ },+ {+ "number": "5",+ "name": "~{OE1}",+ "type": "input",+ "description": "Output Enable 1, active low. Must be low together with OE0 high to enable the selected Y output. When high, all outputs are forced to their inactive state (LOW for 'HC237/'HCT237)."+ },+ {+ "number": "6",+ "name": "OE0",+ "type": "input",+ "description": "Output Enable 0, active high. Must be high together with /OE1 low to enable the selected Y output. When low, all outputs are forced to their inactive state (LOW for 'HC237/'HCT237)."+ },+ {+ "number": "7",+ "name": "Y7",+ "type": "output",+ "description": "Decoded output 7 (address 111). Driven HIGH when selected and both enables active; otherwise LOW. Fanout 10 LSTTL loads (standard) / 15 LSTTL loads (bus driver)."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V) for logic and outputs."+ },+ {+ "number": "9",+ "name": "Y6",+ "type": "output",+ "description": "Decoded output 6 (address 110). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "10",+ "name": "Y5",+ "type": "output",+ "description": "Decoded output 5 (address 101). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "11",+ "name": "Y4",+ "type": "output",+ "description": "Decoded output 4 (address 100). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "12",+ "name": "Y3",+ "type": "output",+ "description": "Decoded output 3 (address 011). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "13",+ "name": "Y2",+ "type": "output",+ "description": "Decoded output 2 (address 010). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "14",+ "name": "Y1",+ "type": "output",+ "description": "Decoded output 1 (address 001). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "15",+ "name": "Y0",+ "type": "output",+ "description": "Decoded output 0 (address 000). Driven HIGH when selected and both enables active; otherwise LOW."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply. HC variant: 2 V to 6 V. HCT variant: 4.5 V to 5.5 V. Decouple with a local 0.1 uF ceramic to GND close to the pin."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/cd74hc237.pdf",+ "pages": 27,+ "sha256": "564c040df4c1b784",+ "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": "3-to-8 decoder/demux, latched",+ "Address": "3-bit (A0-A2), latchable",+ "Outputs": "8 active-high (Y0-Y7)",+ "Latch": "LE holds the address",+ "Enables": "OE0 + /OE1",+ "Logic family": "HC (high-speed CMOS)",+ "Supply voltage": "2-6 V",+ "Package": "SOIC-16"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "sn74hc237",+ "74hc237",+ "latched decoder",+ "3 to 8 decoder latch",+ "address decoder"+ ],+ "discovery_pitch": "SN74HC237 3-to-8 decoder with address latch (SOIC-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -28,10 +195,5 @@ "docs/sn74hc237-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }