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SN74ABT651DWR
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Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-24-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# SN74ABT651DWR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-24-300mil++SN74ABT651DWR from Texas Instruments, in a SOIC-24-300mil. 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 | CLKAB | input | Clock input for the A-to-B storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns. |+| 2 | SAB | input | Select control for the A-to-B path: a low level selects real-time data and a high level selects stored data. |+| 3 | OEAB | input | Output enable for the A-to-B data path; to keep outputs high-impedance during power up or power down, tie OEAB to GND through a pulldown resistor sized by the driver's current-sourcing capability. |+| 4 | A1 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 5 | A2 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 6 | A3 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 7 | A4 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 8 | A5 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 9 | A6 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 10 | A7 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 11 | A8 | bidirectional | Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 12 | GND | power_in | Ground reference; all unused control and I/O pins must be held at VCC or GND for proper device operation. |+| 13 | B8 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 14 | B7 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 15 | B6 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 16 | B5 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 17 | B4 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 18 | B3 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 19 | B2 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 20 | B1 | bidirectional | Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL. |+| 21 | OEBA | input | Output enable for the B-to-A data path; to keep outputs high-impedance during power up or power down, tie OEBA to VCC through a pullup resistor sized by the driver's current-sinking capability. |+| 22 | SBA | input | Select control for the B-to-A path: a low level selects real-time data and a high level selects stored data. |+| 23 | CLKBA | input | Clock input for the B-to-A storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns. |+| 24 | VCC | power_in | Supply voltage, recommended 4.5 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-24-300mil |+| Category | Logic |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `SN74ABT651DWR`+- Footprint: `Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm`+- 3D model: SOIC-24-300mil (KiCad packages3D, STEP)+- 3D model files: `sn74abt651dwr-etched.step` / `sn74abt651dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74abt651dwr.step` / `sn74abt651dwr.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/sn74abt651) (14 pp, sha256 `4f2592736ebf6087`, retrieved 2026-10-08, tier: lcsc)+- **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/sn74abt651dwr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74abt651dwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74abt651dwr.kicad_sym",+ "sn74abt651dwr.kicad_mod",+ "sn74abt651dwr.glb",+ "sn74abt651dwr.step",+ "sn74abt651dwr.lbr",+ "docs/hero.png",+ "docs/sn74abt651dwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74abt651dwr-hero.glb",+ "sn74abt651dwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74ABT651DWR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-24-300mil",+ "pin_count": 24,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74abt651",+ "parts": {+ "symbol": "sn74abt651dwr.kicad_sym",+ "footprint": "sn74abt651dwr.kicad_mod",+ "model_3d": "sn74abt651dwr-hero.glb",+ "model_3d_plain": "sn74abt651dwr.glb",+ "model_3d_step": "sn74abt651dwr-etched.step",+ "model_3d_step_plain": "sn74abt651dwr.step",+ "lbr": "sn74abt651dwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2675995",+ "digikey": "296-29237-2-ND",+ "mouser": "595-SN74ABT651DWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T16:07:38Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-29237-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74ABT651DWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "CLKAB",+ "type": "input",+ "description": "Clock input for the A-to-B storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns."+ },+ {+ "number": "2",+ "name": "SAB",+ "type": "input",+ "description": "Select control for the A-to-B path: a low level selects real-time data and a high level selects stored data."+ },+ {+ "number": "3",+ "name": "OEAB",+ "type": "input",+ "description": "Output enable for the A-to-B data path; to keep outputs high-impedance during power up or power down, tie OEAB to GND through a pulldown resistor sized by the driver's current-sourcing capability."+ },+ {+ "number": "4",+ "name": "A1",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "5",+ "name": "A2",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "6",+ "name": "A3",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "7",+ "name": "A4",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "8",+ "name": "A5",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "9",+ "name": "A6",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "10",+ "name": "A7",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "11",+ "name": "A8",+ "type": "bidirectional",+ "description": "Bus A data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference; all unused control and I/O pins must be held at VCC or GND for proper device operation."+ },+ {+ "number": "13",+ "name": "B8",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "14",+ "name": "B7",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "15",+ "name": "B6",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "16",+ "name": "B5",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "17",+ "name": "B4",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "18",+ "name": "B3",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "19",+ "name": "B2",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "20",+ "name": "B1",+ "type": "bidirectional",+ "description": "Bus B data input/output, 3-state; the high-drive outputs are rated at -32 mA IOH and 64 mA IOL."+ },+ {+ "number": "21",+ "name": "OEBA",+ "type": "input",+ "description": "Output enable for the B-to-A data path; to keep outputs high-impedance during power up or power down, tie OEBA to VCC through a pullup resistor sized by the driver's current-sinking capability."+ },+ {+ "number": "22",+ "name": "SBA",+ "type": "input",+ "description": "Select control for the B-to-A path: a low level selects real-time data and a high level selects stored data."+ },+ {+ "number": "23",+ "name": "CLKBA",+ "type": "input",+ "description": "Clock input for the B-to-A storage flip-flops; data is stored on low-to-high transitions regardless of the select or enable controls, with a minimum CLK pulse duration of 4 ns."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, recommended 4.5 V to 5.5 V."+ }+ ],+ "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 extracted text lists the right-hand column names in a scrambled order. Pin assignments here were; Control-pin descriptions were written from the Description and Function Table text on page 1 and pag"+ ],+ "pages_sent": 14,+ "cost_usd": 0.0822,+ "at": "2026-10-08T16:07:18"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74abt651",+ "pages": 14,+ "sha256": "4f2592736ebf6087",+ "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": "sn74abt651dwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 10.3,+ 15.4,+ 2.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "4b0d20f82f5b0124fecfe11c941274a3c865a30f7baee8b8fadd7df55972d4cd",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74abt651dwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 10.3,+ 15.4,+ 2.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "5c3d5dda173d0ab1daf0ff554259dabdd58eb5d2088c46088409a44081ec8c43",+ "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]"+ }+}