component
SN74ABT2244ADBR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# SN74ABT2244ADBR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SSOP-20-208mil++SN74ABT2244ADBR from Texas Instruments, in a SSOP-20-208mil. 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 | Active-low output enable for buffer group 1 (1Y1-1Y4); high puts outputs in high-impedance state. |+| 2 | 1A1 | input | Data input A1 of group 1, drives 1Y1 (pin 18); unused inputs must be held high or low. |+| 3 | 2Y4 | output | 3-state output Y4 of group 2 with equivalent 25-ohm series resistor, follows 2A4; sinks up to 12 mA. |+| 4 | 1A2 | input | Data input A2 of group 1, drives 1Y2 (pin 16); unused inputs must be held high or low. |+| 5 | 2Y3 | output | 3-state output Y3 of group 2 with equivalent 25-ohm series resistor, follows 2A3; sinks up to 12 mA. |+| 6 | 1A3 | input | Data input A3 of group 1, drives 1Y3 (pin 14); unused inputs must be held high or low. |+| 7 | 2Y2 | output | 3-state output Y2 of group 2 with equivalent 25-ohm series resistor, follows 2A2; sinks up to 12 mA. |+| 8 | 1A4 | input | Data input A4 of group 1, drives 1Y4 (pin 12); unused inputs must be held high or low. |+| 9 | 2Y1 | output | 3-state output Y1 of group 2 with equivalent 25-ohm series resistor, follows 2A1; sinks up to 12 mA. |+| 10 | GND | power_in | Ground. |+| 11 | 2A1 | input | Data input A1 of group 2, drives 2Y1 (pin 9); unused inputs must be held high or low. |+| 12 | 1Y4 | output | 3-state output Y4 of group 1 with equivalent 25-ohm series resistor, follows 1A4; sinks up to 12 mA. |+| 13 | 2A2 | input | Data input A2 of group 2, drives 2Y2 (pin 7); unused inputs must be held high or low. |+| 14 | 1Y3 | output | 3-state output Y3 of group 1 with equivalent 25-ohm series resistor, follows 1A3; sinks up to 12 mA. |+| 15 | 2A3 | input | Data input A3 of group 2, drives 2Y3 (pin 5); unused inputs must be held high or low. |+| 16 | 1Y2 | output | 3-state output Y2 of group 1 with equivalent 25-ohm series resistor, follows 1A2; sinks up to 12 mA. |+| 17 | 2A4 | input | Data input A4 of group 2, drives 2Y4 (pin 3); unused inputs must be held high or low. |+| 18 | 1Y1 | output | 3-state output Y1 of group 1 with equivalent 25-ohm series resistor, follows 1A1; sinks up to 12 mA. |+| 19 | 2OE | input | Active-low output enable for buffer group 2 (2Y1-2Y4); high puts outputs in high-impedance state. |+| 20 | VCC | power_in | Supply voltage, 4.5 V to 5.5 V recommended (absolute maximum -0.5 V to 7 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-20-208mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74ABT2244ADBR`+- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`+- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)+- 3D model files: `sn74abt2244adbr-etched.step` / `sn74abt2244adbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74abt2244adbr.step` / `sn74abt2244adbr.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/sn74abt2244a) (24 pp, sha256 `00fe06ffe637ec7f`, retrieved 2026-10-07, tier: lcsc)+- **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/sn74abt2244adbr-datasheet.pdf)
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high puts outputs in high-impedance state."+ },+ {+ "number": "2",+ "name": "1A1",+ "type": "input",+ "description": "Data input A1 of group 1, drives 1Y1 (pin 18); unused inputs must be held high or low."+ },+ {+ "number": "3",+ "name": "2Y4",+ "type": "output",+ "description": "3-state output Y4 of group 2 with equivalent 25-ohm series resistor, follows 2A4; sinks up to 12 mA."+ },+ {+ "number": "4",+ "name": "1A2",+ "type": "input",+ "description": "Data input A2 of group 1, drives 1Y2 (pin 16); unused inputs must be held high or low."+ },+ {+ "number": "5",+ "name": "2Y3",+ "type": "output",+ "description": "3-state output Y3 of group 2 with equivalent 25-ohm series resistor, follows 2A3; sinks up to 12 mA."+ },+ {+ "number": "6",+ "name": "1A3",+ "type": "input",+ "description": "Data input A3 of group 1, drives 1Y3 (pin 14); unused inputs must be held high or low."+ },+ {+ "number": "7",+ "name": "2Y2",+ "type": "output",+ "description": "3-state output Y2 of group 2 with equivalent 25-ohm series resistor, follows 2A2; sinks up to 12 mA."+ },+ {+ "number": "8",+ "name": "1A4",+ "type": "input",+ "description": "Data input A4 of group 1, drives 1Y4 (pin 12); unused inputs must be held high or low."+ },+ {+ "number": "9",+ "name": "2Y1",+ "type": "output",+ "description": "3-state output Y1 of group 2 with equivalent 25-ohm series resistor, follows 2A1; sinks up to 12 mA."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "11",+ "name": "2A1",+ "type": "input",+ "description": "Data input A1 of group 2, drives 2Y1 (pin 9); unused inputs must be held high or low."+ },+ {+ "number": "12",+ "name": "1Y4",+ "type": "output",+ "description": "3-state output Y4 of group 1 with equivalent 25-ohm series resistor, follows 1A4; sinks up to 12 mA."+ },+ {+ "number": "13",+ "name": "2A2",+ "type": "input",+ "description": "Data input A2 of group 2, drives 2Y2 (pin 7); unused inputs must be held high or low."+ },+ {+ "number": "14",+ "name": "1Y3",+ "type": "output",+ "description": "3-state output Y3 of group 1 with equivalent 25-ohm series resistor, follows 1A3; sinks up to 12 mA."+ },+ {+ "number": "15",+ "name": "2A3",+ "type": "input",+ "description": "Data input A3 of group 2, drives 2Y3 (pin 5); unused inputs must be held high or low."+ },+ {+ "number": "16",+ "name": "1Y2",+ "type": "output",+ "description": "3-state output Y2 of group 1 with equivalent 25-ohm series resistor, follows 1A2; sinks up to 12 mA."+ },+ {+ "number": "17",+ "name": "2A4",+ "type": "input",+ "description": "Data input A4 of group 2, drives 2Y4 (pin 3); unused inputs must be held high or low."+ },+ {+ "number": "18",+ "name": "1Y1",+ "type": "output",+ "description": "3-state output Y1 of group 1 with equivalent 25-ohm series resistor, follows 1A1; sinks up to 12 mA."+ },+ {+ "number": "19",+ "name": "2OE",+ "type": "input",+ "description": "Active-low output enable for buffer group 2 (2Y1-2Y4); high puts outputs in high-impedance state."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4.5 V to 5.5 V recommended (absolute maximum -0.5 V to 7 V)."+ }+ ],+ "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": 24,+ "cost_usd": 0.1901,+ "at": "2026-10-07T02:41:49"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74abt2244a",+ "pages": 24,+ "sha256": "00fe06ffe637ec7f",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "sn74abt2244adbr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c9a01a276d0b4d9561efd58f2fcee56f52c1b6ab464ea7a0380cab4e87a924e6",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn74abt2244adbr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 7.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "f8b48c930218fa6979c16f08ee00de6399e5ed4b648f18b44911ca285c890613",+ "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]"+ }+}