component
TCA4311ADR
Public Made by Adomby adom
Texas Instruments Signal Buffers, Repeaters, Splitters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# TCA4311ADR++**Texas Instruments** · Signal Buffers, Repeaters, Splitters · SOIC-8++TCA4311ADR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | EN | input | Active-high chip enable: when EN is low the device enters a low-current mode (<1 µA) and isolates the two sides, and EN should be held high at VCC for normal operation, with VIH of 2 V minimum and VIL of 0.8 V maximum. |+| 2 | SCLOUT | bidirectional | Serial clock output that connects to the SCL bus on the card side and is buffered from SCLIN, with open-drain I/O and a pull-up resistor required on this side. |+| 3 | SCLIN | bidirectional | Serial clock input that connects to the SCL bus on the backplane side and is buffered to SCLOUT, with open-drain I/O and a pull-up resistor required on this side. |+| 4 | GND | power_in | Supply ground for the device. |+| 5 | READY | output | Open-drain connection flag and rise-time accelerator control that is low while EN is low or start-up is incomplete, goes high when the backplane and card sides are connected, and needs a 10-kΩ pull-up resistor to VCC. |+| 6 | SDAIN | bidirectional | Serial data input that connects to the SDA bus on the backplane side and is buffered to SDAOUT, with open-drain I/O and a pull-up resistor required on this side. |+| 7 | SDAOUT | bidirectional | Serial data output that connects to the SDA bus on the card side and is buffered from SDAIN, with open-drain I/O and a pull-up resistor required on this side. |+| 8 | VCC | power_in | Supply voltage from the backplane, specified from 2.7 V to 5.5 V, with a bypass capacitor of at least 0.01 µF placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `TCA4311ADR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `tca4311adr-etched.step` / `tca4311adr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tca4311adr.step` / `tca4311adr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tca4311a.pdf) (30 pp, sha256 `d01087e7243208db`, retrieved 2026-10-08, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tca4311adr-datasheet.pdf)
page.jsonadded+200@@ -0,0 +1,200 @@+{+ "slug": "tca4311adr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Signal Buffers, Repeaters, Splitters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "tca4311adr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tca4311adr.kicad_sym",+ "tca4311adr.kicad_mod",+ "tca4311adr.glb",+ "tca4311adr.step",+ "tca4311adr.lbr",+ "docs/hero.png",+ "docs/tca4311adr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tca4311adr-hero.glb",+ "tca4311adr-hero.overlay.json"+ ],+ "component": {+ "mpn": "TCA4311ADR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Interface",+ "subcategory": "Signal Buffers, Repeaters, Splitters",+ "datasheet": "https://www.ti.com/lit/ds/symlink/tca4311a.pdf",+ "parts": {+ "symbol": "tca4311adr.kicad_sym",+ "footprint": "tca4311adr.kicad_mod",+ "model_3d": "tca4311adr-hero.glb",+ "model_3d_plain": "tca4311adr.glb",+ "model_3d_step": "tca4311adr-etched.step",+ "model_3d_step_plain": "tca4311adr.step",+ "lbr": "tca4311adr.lbr"+ },+ "distributor_links": {+ "lcsc": "C469843",+ "digikey": "296-30189-2-ND",+ "mouser": "595-TCA4311ADR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T18:59:44Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-30189-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TCA4311ADR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "EN",+ "type": "input",+ "description": "Active-high chip enable: when EN is low the device enters a low-current mode (<1 µA) and isolates the two sides, and EN should be held high at VCC for normal operation, with VIH of 2 V minimum and VIL of 0.8 V maximum."+ },+ {+ "number": "2",+ "name": "SCLOUT",+ "type": "bidirectional",+ "description": "Serial clock output that connects to the SCL bus on the card side and is buffered from SCLIN, with open-drain I/O and a pull-up resistor required on this side."+ },+ {+ "number": "3",+ "name": "SCLIN",+ "type": "bidirectional",+ "description": "Serial clock input that connects to the SCL bus on the backplane side and is buffered to SCLOUT, with open-drain I/O and a pull-up resistor required on this side."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Supply ground for the device."+ },+ {+ "number": "5",+ "name": "READY",+ "type": "output",+ "description": "Open-drain connection flag and rise-time accelerator control that is low while EN is low or start-up is incomplete, goes high when the backplane and card sides are connected, and needs a 10-kΩ pull-up resistor to VCC."+ },+ {+ "number": "6",+ "name": "SDAIN",+ "type": "bidirectional",+ "description": "Serial data input that connects to the SDA bus on the backplane side and is buffered to SDAOUT, with open-drain I/O and a pull-up resistor required on this side."+ },+ {+ "number": "7",+ "name": "SDAOUT",+ "type": "bidirectional",+ "description": "Serial data output that connects to the SDA bus on the card side and is buffered from SDAIN, with open-drain I/O and a pull-up resistor required on this side."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage from the backplane, specified from 2.7 V to 5.5 V, with a bypass capacitor of at least 0.01 µF placed close to the pin."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet labels these I2C pins as input or output (for example 'Serial clock output' and 'Seria; The datasheet text does not state an absolute maximum or recommended voltage range for the EN pin be"+ ],+ "pages_sent": 7,+ "cost_usd": 0.0465,+ "at": "2026-10-08T18:59:18"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/tca4311a.pdf",+ "pages": 30,+ "sha256": "d01087e7243208db",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tca4311adr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tca4311adr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "f028fd97fe8473de503a4933ca8a3577ec9419017b112b7c5a0da7b8aba51ef1",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}