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SN74AXCH4T245RSVR
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Texas Instruments Buffers, Drivers, Receivers, Transceivers, UQFN-16(1.8x2.6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# SN74AXCH4T245RSVR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · UQFN-16(1.8x2.6)++SN74AXCH4T245RSVR from Texas Instruments, in a UQFN-16(1.8x2.6). 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 | 1OE | input | Tri-state output-mode enable for transceiver pair 1, referenced to VCCA; pull high to place outputs in high-impedance state. |+| 2 | VCCB | power_in | B-port power supply voltage; operating range 0.65 V to 3.6 V. |+| 3 | VCCA | power_in | A-port power supply voltage; operating range 0.65 V to 3.6 V. |+| 4 | 1DIR | input | Direction-control input for transceiver pair 1, referenced to VCCA; low enables B-to-A transfer, high enables A-to-B transfer. |+| 5 | 2DIR | input | Direction-control input for transceiver pair 2, referenced to VCCA; low enables B-to-A transfer, high enables A-to-B transfer. |+| 6 | 1A1 | bidirectional | Input/output 1A1, referenced to VCCA; part of transceiver pair 1 on A side. |+| 7 | 1A2 | bidirectional | Input/output 1A2, referenced to VCCA; part of transceiver pair 1 on A side. |+| 8 | 2A1 | bidirectional | Input/output 2A1, referenced to VCCA; part of transceiver pair 2 on A side. |+| 9 | 2A2 | bidirectional | Input/output 2A2, referenced to VCCA; part of transceiver pair 2 on A side. |+| 10 | GND | power_in | Ground reference. |+| 11 | GND | power_in | Ground reference. |+| 12 | 2B2 | bidirectional | Input/output 2B2, referenced to VCCB; part of transceiver pair 2 on B side. |+| 13 | 2B1 | bidirectional | Input/output 2B1, referenced to VCCB; part of transceiver pair 2 on B side. |+| 14 | 1B2 | bidirectional | Input/output 1B2, referenced to VCCB; part of transceiver pair 1 on B side. |+| 15 | 1B1 | bidirectional | Input/output 1B1, referenced to VCCB; part of transceiver pair 1 on B side. |+| 16 | 2OE | input | Tri-state output-mode enable for transceiver pair 2, referenced to VCCA; pull high to place outputs in high-impedance state. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | UQFN-16(1.8x2.6) |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `SN74AXCH4T245RSVR`+- Footprint: `Package_DFN_QFN:UQFN-16_1.8x2.6mm_P0.4mm`+- 3D model: UQFN-16(1.8x2.6), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.55 mm nominal UFQFPN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `sn74axch4t245rsvr-etched.step` / `sn74axch4t245rsvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74axch4t245rsvr.step` / `sn74axch4t245rsvr.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/cn/lit/gpn/sn74axch4t245) (39 pp, sha256 `6123a41d641d5594`, retrieved 2026-10-01, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/sn74axch4t245rsvr-datasheet.pdf)
page.jsonadded+204@@ -0,0 +1,204 @@+{+ "slug": "sn74axch4t245rsvr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, UQFN-16(1.8x2.6). 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pull high to place outputs in high-impedance state."+ },+ {+ "number": "2",+ "name": "VCCB",+ "type": "power_in",+ "description": "B-port power supply voltage; operating range 0.65 V to 3.6 V."+ },+ {+ "number": "3",+ "name": "VCCA",+ "type": "power_in",+ "description": "A-port power supply voltage; operating range 0.65 V to 3.6 V."+ },+ {+ "number": "4",+ "name": "1DIR",+ "type": "input",+ "description": "Direction-control input for transceiver pair 1, referenced to VCCA; low enables B-to-A transfer, high enables A-to-B transfer."+ },+ {+ "number": "5",+ "name": "2DIR",+ "type": "input",+ "description": "Direction-control input for transceiver pair 2, referenced to VCCA; low enables B-to-A transfer, high enables A-to-B transfer."+ },+ {+ "number": "6",+ "name": "1A1",+ "type": "bidirectional",+ "description": "Input/output 1A1, referenced to VCCA; part of transceiver pair 1 on A side."+ },+ {+ "number": "7",+ "name": "1A2",+ "type": "bidirectional",+ "description": "Input/output 1A2, referenced to VCCA; part of transceiver pair 1 on A side."+ },+ {+ "number": "8",+ "name": "2A1",+ "type": "bidirectional",+ "description": "Input/output 2A1, referenced to VCCA; part of transceiver pair 2 on A side."+ },+ {+ "number": "9",+ "name": "2A2",+ "type": "bidirectional",+ "description": "Input/output 2A2, referenced to VCCA; part of transceiver pair 2 on A side."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference."+ },+ {+ "number": "11",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference."+ },+ {+ "number": "12",+ "name": "2B2",+ "type": "bidirectional",+ "description": "Input/output 2B2, referenced to VCCB; part of transceiver pair 2 on B side."+ },+ {+ "number": "13",+ "name": "2B1",+ "type": "bidirectional",+ "description": "Input/output 2B1, referenced to VCCB; part of transceiver pair 2 on B side."+ },+ {+ "number": "14",+ "name": "1B2",+ "type": "bidirectional",+ "description": "Input/output 1B2, referenced to VCCB; part of transceiver pair 1 on B side."+ },+ {+ "number": "15",+ "name": "1B1",+ "type": "bidirectional",+ "description": "Input/output 1B1, referenced to VCCB; part of transceiver pair 1 on B side."+ },+ {+ "number": "16",+ "name": "2OE",+ "type": "input",+ "description": "Tri-state output-mode enable for transceiver pair 2, referenced to VCCA; pull high to place outputs in high-impedance state."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 39,+ "cost_usd": 0.2955,+ "at": "2026-10-01T17:41:50"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74axch4t245",+ "pages": 39,+ "sha256": "6123a41d641d5594",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}