TCA9548A

@@ -3,8 +3,9 @@   "type": "component",   "slug": "tca9548a",   "title": "TCA9548A",-  "brief": "8-channel I2C multiplexer, TSSOP-24",+  "brief": "TI 8-channel bidirectional I2C switch, TSSOP-24. Fans one bus to 8, 3 address pins, reset. Datasheet-verified.",   "version": "0.1.0",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "interface",@@ -13,36 +14,222 @@     "tssop-24",     "texas-instruments"   ],-  "license": "MIT",   "component": {     "mpn": "TCA9548A",     "manufacturer": "Texas Instruments",     "package": "TSSOP-24",-    "pin_count": null,-    "category": "library",-    "subcategory": "",-    "body_size": null,-    "parts": {},-    "distributor_links": {}+    "pin_count": 24,+    "category": "Interface IC",+    "subcategory": "8-channel I2C switch / multiplexer",+    "datasheet": "https://www.ti.com/lit/ds/symlink/tca9548a.pdf",+    "parts": {+      "symbol": "tca9548a.kicad_sym",+      "footprint": "tca9548a.kicad_mod",+      "model_3d": "tca9548a.glb"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "A0",+        "type": "input",+        "description": "I2C target address input bit 0. Hard-wire directly to VCC (logic 1) or GND (logic 0) to set the lower address bit of the TCA9548A's 7-bit I2C address, allowing up to eight devices on the same bus."+      },+      {+        "number": "2",+        "name": "A1",+        "type": "input",+        "description": "I2C target address input bit 1. Hard-wire directly to VCC or GND to set the second address bit of the TCA9548A's 7-bit I2C address."+      },+      {+        "number": "3",+        "name": "RESET",+        "type": "input",+        "description": "Active-low reset input. Asserting low resets the I2C/SMBus state machine, deselects all channels, and initializes the device without cycling power (VIL \u2264 0.3\u00d7VCC, VIH \u2265 0.7\u00d7VCC; min pulse width 6 ns). Tie to VCC or VDPUM through a pull-up resistor if unused."+      },+      {+        "number": "4",+        "name": "SD0",+        "type": "bidirectional",+        "description": "Downstream channel 0 serial data line. Connect to VDPU0 (channel-0 pull-up reference voltage) through an external pull-up resistor. When channel 0 is selected in the control register, SD0 is bidirectionally coupled to SDA via a low-RON pass gate (RON \u2248 4\u03a9 at 5V)."+      },+      {+        "number": "5",+        "name": "SC0",+        "type": "bidirectional",+        "description": "Downstream channel 0 serial clock line. Connect to VDPU0 through an external pull-up. Coupled to SCL through a pass gate when channel 0 is enabled."+      },+      {+        "number": "6",+        "name": "SD1",+        "type": "bidirectional",+        "description": "Downstream channel 1 serial data line. Connect to VDPU1 through a pull-up resistor; coupled to SDA when channel 1 is selected."+      },+      {+        "number": "7",+        "name": "SC1",+        "type": "bidirectional",+        "description": "Downstream channel 1 serial clock line. Connect to VDPU1 through a pull-up resistor; coupled to SCL when channel 1 is selected."+      },+      {+        "number": "8",+        "name": "SD2",+        "type": "bidirectional",+        "description": "Downstream channel 2 serial data line. Connect to VDPU2 through a pull-up resistor; coupled to SDA when channel 2 is selected."+      },+      {+        "number": "9",+        "name": "SC2",+        "type": "bidirectional",+        "description": "Downstream channel 2 serial clock line. Connect to VDPU2 through a pull-up resistor; coupled to SCL when channel 2 is selected."+      },+      {+        "number": "10",+        "name": "SD3",+        "type": "bidirectional",+        "description": "Downstream channel 3 serial data line. Connect to VDPU3 through a pull-up resistor; coupled to SDA when channel 3 is selected."+      },+      {+        "number": "11",+        "name": "SC3",+        "type": "bidirectional",+        "description": "Downstream channel 3 serial clock line. Connect to VDPU3 through a pull-up resistor; coupled to SCL when channel 3 is selected."+      },+      {+        "number": "12",+        "name": "GND",+        "type": "power_in",+        "description": "Ground return for the supply and all I/O reference levels."+      },+      {+        "number": "13",+        "name": "SD4",+        "type": "bidirectional",+        "description": "Downstream channel 4 serial data line. Connect to VDPU4 through a pull-up resistor; coupled to SDA when channel 4 is selected."+      },+      {+        "number": "14",+        "name": "SC4",+        "type": "bidirectional",+        "description": "Downstream channel 4 serial clock line. Connect to VDPU4 through a pull-up resistor; coupled to SCL when channel 4 is selected."+      },+      {+        "number": "15",+        "name": "SD5",+        "type": "bidirectional",+        "description": "Downstream channel 5 serial data line. Connect to VDPU5 through a pull-up resistor; coupled to SDA when channel 5 is selected."+      },+      {+        "number": "16",+        "name": "SC5",+        "type": "bidirectional",+        "description": "Downstream channel 5 serial clock line. Connect to VDPU5 through a pull-up resistor; coupled to SCL when channel 5 is selected."+      },+      {+        "number": "17",+        "name": "SD6",+        "type": "bidirectional",+        "description": "Downstream channel 6 serial data line. Connect to VDPU6 through a pull-up resistor; coupled to SDA when channel 6 is selected."+      },+      {+        "number": "18",+        "name": "SC6",+        "type": "bidirectional",+        "description": "Downstream channel 6 serial clock line. Connect to VDPU6 through a pull-up resistor; coupled to SCL when channel 6 is selected."+      },+      {+        "number": "19",+        "name": "SD7",+        "type": "bidirectional",+        "description": "Downstream channel 7 serial data line. Connect to VDPU7 through a pull-up resistor; coupled to SDA when channel 7 is selected."+      },+      {+        "number": "20",+        "name": "SC7",+        "type": "bidirectional",+        "description": "Downstream channel 7 serial clock line. Connect to VDPU7 through a pull-up resistor; coupled to SCL when channel 7 is selected."+      },+      {+        "number": "21",+        "name": "A2",+        "type": "input",+        "description": "I2C target address input bit 2. Hard-wire directly to VCC or GND to set the third address bit of the TCA9548A's 7-bit I2C address (base 1110_A2A1A0)."+      },+      {+        "number": "22",+        "name": "SCL",+        "type": "bidirectional",+        "description": "Upstream I2C serial clock bus (controller side). Connect to VDPUM (the controller's I2C reference voltage) through a pull-up resistor. Standard-mode up to 100 kHz, Fast-mode up to 400 kHz."+      },+      {+        "number": "23",+        "name": "SDA",+        "type": "bidirectional",+        "description": "Upstream I2C serial data bus (controller side). Connect to VDPUM through a pull-up resistor. Open-drain output capable of sinking 6 mA at VOL = 0.6 V."+      },+      {+        "number": "24",+        "name": "VCC",+        "type": "power_in",+        "description": "Supply voltage input, 1.65 V to 5.5 V (absolute max 7 V). Also sets the maximum high-level voltage that the internal pass gates will pass between the upstream and downstream I2C buses."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://www.ti.com/lit/ds/symlink/tca9548a.pdf",+        "pages": 42,+        "sha256": "2137822fd7128945",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 24,+        "described": 24,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }   },-  "readme": "# TCA9548A\n\n8-channel I2C multiplexer, TSSOP-24\n\nThe TCA9548A is an 8-channel I2C multiplexer from TI. Allows multiple I2C devices with the same address to coexist on a single bus. Features active-low reset and supports 400kHz Fast-mode.",+  "metadata": {+    "specs": {+      "Type": "8-channel bidirectional I2C switch",+      "Channels": "8 (SC0/SD0 ... SC7/SD7)",+      "Addresses": "3 pins (up to 8 devices / 64 channels)",+      "Reset": "Active-low RESET",+      "Voltage translation": "Channels can bridge different bus voltages",+      "Supply voltage": "1.65-5.5 V",+      "Package": "TSSOP-24",+      "Body (L\u00d7W\u00d7H)": "7.8 \u00d7 4.4 \u00d7 1.2 mm"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "tca9548a",+    "i2c multiplexer",+    "i2c switch 8 channel",+    "i2c bus expander"+  ],+  "discovery_pitch": "TI TCA9548A 8-channel bidirectional I2C switch/multiplexer (TSSOP-24) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",   "author": {-    "name": "Kyle Bergstedt",-    "email": "[email protected]"+    "name": "Ray",+    "email": "[email protected]"   },-  "visibility": "public",+  "dependencies": {},   "hero": {     "type": "image",     "path": "docs/hero.png"   },-  "sample_prompts": [],-  "discovery_triggers": [],-  "discovery_pitch": null,-  "metadata": {},-  "created_at": "2026-05-28T05:34:18.417Z",-  "updated_at": "2026-05-28T05:34:18.417Z",-  "description": "TI 8-channel bidirectional I2C switch, TSSOP-24. Fans one bus to 8, 3 address pins, reset. Datasheet-verified.",-  "dependencies": {},   "files": [     "page.json",     "README.md",