component
SN74LVC8T245DBQR
Public Made by Adomby adom
Texas Instruments Translators, Level Shifters, SSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+61@@ -0,0 +1,61 @@+# SN74LVC8T245DBQR++**Texas Instruments** · Translators, Level Shifters · SSOP-24++SN74LVC8T245DBQR from Texas Instruments, in a SSOP-24. 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 | VCCA | power_in | Power supply for port A with operating voltage range 1.65V to 5.5V |+| 2 | DIR | input | Direction control input; high enables A-to-B data transfer, low enables B-to-A data transfer |+| 3 | A1 | bidirectional | Bidirectional data I/O port A1 referenced to VCCA voltage |+| 4 | A2 | bidirectional | Bidirectional data I/O port A2 referenced to VCCA voltage |+| 5 | A3 | bidirectional | Bidirectional data I/O port A3 referenced to VCCA voltage |+| 6 | A4 | bidirectional | Bidirectional data I/O port A4 referenced to VCCA voltage |+| 7 | A5 | bidirectional | Bidirectional data I/O port A5 referenced to VCCA voltage |+| 8 | A6 | bidirectional | Bidirectional data I/O port A6 referenced to VCCA voltage |+| 9 | A7 | bidirectional | Bidirectional data I/O port A7 referenced to VCCA voltage |+| 10 | A8 | bidirectional | Bidirectional data I/O port A8 referenced to VCCA voltage |+| 11 | GND | power_in | Ground connection |+| 12 | GND | power_in | Ground connection |+| 13 | GND | power_in | Ground connection |+| 14 | B8 | bidirectional | Bidirectional data I/O port B8 referenced to VCCB voltage |+| 15 | B7 | bidirectional | Bidirectional data I/O port B7 referenced to VCCB voltage |+| 16 | B6 | bidirectional | Bidirectional data I/O port B6 referenced to VCCB voltage |+| 17 | B5 | bidirectional | Bidirectional data I/O port B5 referenced to VCCB voltage |+| 18 | B4 | bidirectional | Bidirectional data I/O port B4 referenced to VCCB voltage |+| 19 | B3 | bidirectional | Bidirectional data I/O port B3 referenced to VCCB voltage |+| 20 | B2 | bidirectional | Bidirectional data I/O port B2 referenced to VCCB voltage |+| 21 | B1 | bidirectional | Bidirectional data I/O port B1 referenced to VCCB voltage |+| 22 | OE | input | Output enable input (active low); outputs in high-impedance state when high, referenced to VCCA voltage |+| 23 | VCCB | power_in | Power supply for port B with operating voltage range 1.65V to 5.5V |+| 24 | VCCB | power_in | Power supply for port B with operating voltage range 1.65V to 5.5V |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-24 |+| Category | Logic |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `SN74LVC8T245DBQR`+- Footprint: `Package_SO:SSOP-24_5.3x8.2mm_P0.65mm`+- 3D model: SSOP-24 (KiCad packages3D, STEP)+- 3D model files: `sn74lvc8t245dbqr-etched.step` / `sn74lvc8t245dbqr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc8t245dbqr.step` / `sn74lvc8t245dbqr.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/sn74lvc8t245) (39 pp, sha256 `b295dd770303d32c`, retrieved 2026-10-07, 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 0.3`, primary `claude-haiku-4-5-20251001` (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/sn74lvc8t245dbqr-datasheet.pdf)
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high enables A-to-B data transfer, low enables B-to-A data transfer"+ },+ {+ "number": "3",+ "name": "A1",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A1 referenced to VCCA voltage"+ },+ {+ "number": "4",+ "name": "A2",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A2 referenced to VCCA voltage"+ },+ {+ "number": "5",+ "name": "A3",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A3 referenced to VCCA voltage"+ },+ {+ "number": "6",+ "name": "A4",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A4 referenced to VCCA voltage"+ },+ {+ "number": "7",+ "name": "A5",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A5 referenced to VCCA voltage"+ },+ {+ "number": "8",+ "name": "A6",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A6 referenced to VCCA voltage"+ },+ {+ "number": "9",+ "name": "A7",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A7 referenced to VCCA voltage"+ },+ {+ "number": "10",+ "name": "A8",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port A8 referenced to VCCA voltage"+ },+ {+ "number": "11",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "13",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection"+ },+ {+ "number": "14",+ "name": "B8",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B8 referenced to VCCB voltage"+ },+ {+ "number": "15",+ "name": "B7",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B7 referenced to VCCB voltage"+ },+ {+ "number": "16",+ "name": "B6",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B6 referenced to VCCB voltage"+ },+ {+ "number": "17",+ "name": "B5",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B5 referenced to VCCB voltage"+ },+ {+ "number": "18",+ "name": "B4",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B4 referenced to VCCB voltage"+ },+ {+ "number": "19",+ "name": "B3",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B3 referenced to VCCB voltage"+ },+ {+ "number": "20",+ "name": "B2",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B2 referenced to VCCB voltage"+ },+ {+ "number": "21",+ "name": "B1",+ "type": "bidirectional",+ "description": "Bidirectional data I/O port B1 referenced to VCCB voltage"+ },+ {+ "number": "22",+ "name": "OE",+ "type": "input",+ "description": "Output enable input (active low); outputs in high-impedance state when high, referenced to VCCA voltage"+ },+ {+ "number": "23",+ "name": "VCCB",+ "type": "power_in",+ "description": "Power supply for port B with operating voltage range 1.65V to 5.5V"+ },+ {+ "number": "24",+ "name": "VCCB",+ "type": "power_in",+ "description": "Power supply for port B with operating voltage range 1.65V to 5.5V"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 20,+ "cost_usd": 0.1828,+ "at": "2026-10-07T12:48:32"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74lvc8t245",+ "pages": 39,+ "sha256": "b295dd770303d32c",+ "source_tier": "lcsc"+ },+ "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"+ },+ "models_3d": [+ {+ "file": "sn74lvc8t245dbqr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 8.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "77dd0a1fc7e70e9eda1bfde9dde937dc6e391803cff9978790523c850c85a21d",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74lvc8t245dbqr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 8.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e7486203b4a5ec1cc300546b042e4afc2a6ae49b32f92d590fac798be1a5149b",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}