component
CH455G
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WCH Jiangsu Qin Heng LED Display Drivers, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+164−8@@ -1,13 +1,174 @@ {+ "schema_version": 1,+ "type": "component", "slug": "ch455g",+ "title": "CH455G",+ "brief": "WCH Jiangsu Qin Heng LED Display Drivers, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "WCH Jiangsu Qin Heng LED Display Drivers, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "led-drv", "ch455g" ],+ "component": {+ "mpn": "CH455G",+ "manufacturer": "WCH Jiangsu Qin Heng",+ "package": "SOP-16",+ "pin_count": 16,+ "category": "LED-drv",+ "subcategory": "LED Display Drivers",+ "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cbf0b772e0f1ac7190a3d9b0b1958436.pdf",+ "parts": {+ "symbol": "ch455g.kicad_sym",+ "footprint": "ch455g.kicad_mod",+ "model_3d": "ch455g.glb",+ "model_3d_step": "ch455g.step",+ "lbr": "ch455g.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "SEG4",+ "type": "bidirectional",+ "description": "Segment 4 driver output (active-high, drives segment E of a common-cathode 7-seg digit) and row-4 key-scan input (active-high, with internal pull-down). Continuous drive current up to 40 mA per SEG pin."+ },+ {+ "number": "2",+ "name": "SEG5",+ "type": "bidirectional",+ "description": "Segment 5 driver output (active-high, drives segment F) and row-5 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ },+ {+ "number": "3",+ "name": "SEG6",+ "type": "bidirectional",+ "description": "Segment 6 driver output (active-high, drives segment G) and row-6 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ },+ {+ "number": "4",+ "name": "SEG7/INT#",+ "type": "output",+ "description": "In 8-segment mode: decimal-point segment driver (active-high). In 7-segment mode (typical for CH455G, which lacks a dedicated INT# pin): active-low keyboard interrupt output equivalent to INT#. Mode is chosen by the 7SEG bit of the Set System Parameter command."+ },+ {+ "number": "5",+ "name": "DIG0",+ "type": "output",+ "description": "Digit 0 drive (active-low, sinks common-cathode digit current up to 200 mA) during display scan; column-scan output (active-high) during keypad scan."+ },+ {+ "number": "6",+ "name": "SCL",+ "type": "input",+ "description": "2-wire serial clock input, I2C-compatible, up to 4 MHz. Internal pull-up (typ 200 uA); default high. Data is latched on rising edge."+ },+ {+ "number": "7",+ "name": "SDA",+ "type": "bidirectional",+ "description": "2-wire serial data, I2C-compatible open-drain with internal pull-up (typ 300 uA); default high. MSB-first; sampled on SCL rising edge, driven on SCL falling edge."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Common ground return; must sustain continuous current of at least 150 mA to sink the aggregated segment/digit drive current."+ },+ {+ "number": "9",+ "name": "DIG1",+ "type": "output",+ "description": "Digit 1 drive (active-low, up to 200 mA cathode sink) during display scan; column-scan output (active-high) during keypad scan."+ },+ {+ "number": "10",+ "name": "DIG2",+ "type": "output",+ "description": "Digit 2 drive (active-low, up to 200 mA cathode sink) during display scan; column-scan output (active-high) during keypad scan."+ },+ {+ "number": "11",+ "name": "DIG3",+ "type": "output",+ "description": "Digit 3 drive (active-low, up to 200 mA cathode sink) during display scan; column-scan output (active-high) during keypad scan."+ },+ {+ "number": "12",+ "name": "SEG0",+ "type": "bidirectional",+ "description": "Segment 0 driver output (active-high, drives segment A) and row-0 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ },+ {+ "number": "13",+ "name": "SEG1",+ "type": "bidirectional",+ "description": "Segment 1 driver output (active-high, drives segment B) and row-1 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ },+ {+ "number": "14",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply, 2.5 V to 5.3 V (recommended 2.7-5 V). Must sustain continuous current of at least 150 mA; decouple with 0.1 uF ceramic and >=100 uF bulk capacitor close to the pin."+ },+ {+ "number": "15",+ "name": "SEG2",+ "type": "bidirectional",+ "description": "Segment 2 driver output (active-high, drives segment C) and row-2 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ },+ {+ "number": "16",+ "name": "SEG3",+ "type": "bidirectional",+ "description": "Segment 3 driver output (active-high, drives segment D) and row-3 key-scan input (active-high, with internal pull-down). Max 40 mA per SEG."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://datasheet.lcsc.com/datasheet/pdf/cbf0b772e0f1ac7190a3d9b0b1958436.pdf",+ "pages": 9,+ "sha256": "3a6969e2dfa69978",+ "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"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "WCH Jiangsu Qin Heng",+ "Package": "SOP-16",+ "Category": "LED-drv",+ "Pins": "16"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "ch455g"+ ],+ "discovery_pitch": "CH455G (WCH Jiangsu Qin Heng) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +186,5 @@ "docs/ch455g-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }