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SN74AHC541DBR
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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+57@@ -0,0 +1,57 @@+# SN74AHC541DBR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SSOP-20-208mil++SN74AHC541DBR 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 | OE1 | input | Output Enable 1 control input for tri-state buffers; input voltage 0 to 5.5V |+| 2 | A1 | input | A1 data input for buffering and driving to corresponding output Y1; input voltage 0 to 5.5V |+| 3 | A2 | input | A2 data input for buffering and driving to corresponding output Y2; input voltage 0 to 5.5V |+| 4 | A3 | input | A3 data input for buffering and driving to corresponding output Y3; input voltage 0 to 5.5V |+| 5 | A4 | input | A4 data input for buffering and driving to corresponding output Y4; input voltage 0 to 5.5V |+| 6 | A5 | input | A5 data input for buffering and driving to corresponding output Y5; input voltage 0 to 5.5V |+| 7 | A6 | input | A6 data input for buffering and driving to corresponding output Y6; input voltage 0 to 5.5V |+| 8 | A7 | input | A7 data input for buffering and driving to corresponding output Y7; input voltage 0 to 5.5V |+| 9 | A8 | input | A8 data input for buffering and driving to corresponding output Y8; input voltage 0 to 5.5V |+| 10 | GND | power_in | Ground reference pin and return path for internal circuits, 0V reference |+| 11 | Y8 | tri_state | Y8 tri-state buffered output driven from A8 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 12 | Y7 | tri_state | Y7 tri-state buffered output driven from A7 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 13 | Y6 | tri_state | Y6 tri-state buffered output driven from A6 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 14 | Y5 | tri_state | Y5 tri-state buffered output driven from A5 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 15 | Y4 | tri_state | Y4 tri-state buffered output driven from A4 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 16 | Y3 | tri_state | Y3 tri-state buffered output driven from A3 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 17 | Y2 | tri_state | Y2 tri-state buffered output driven from A2 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 18 | Y1 | tri_state | Y1 tri-state buffered output driven from A1 input when enabled; output voltage 0 to VCC, ±25mA continuous |+| 19 | OE2 | input | Output Enable 2 control input for tri-state buffers; input voltage 0 to 5.5V |+| 20 | VCC | power_in | Positive power supply voltage input, operating range 2V to 5.5V |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-20-208mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74AHC541DBR`+- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`+- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)+- 3D model files: `sn74ahc541dbr-etched.step` / `sn74ahc541dbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ahc541dbr.step` / `sn74ahc541dbr.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/sn74ahc541) (42 pp, sha256 `2bf701d65dda347a`, 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 0.3`, 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/sn74ahc541dbr-datasheet.pdf)
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input voltage 0 to 5.5V"+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "A1 data input for buffering and driving to corresponding output Y1; input voltage 0 to 5.5V"+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "A2 data input for buffering and driving to corresponding output Y2; input voltage 0 to 5.5V"+ },+ {+ "number": "4",+ "name": "A3",+ "type": "input",+ "description": "A3 data input for buffering and driving to corresponding output Y3; input voltage 0 to 5.5V"+ },+ {+ "number": "5",+ "name": "A4",+ "type": "input",+ "description": "A4 data input for buffering and driving to corresponding output Y4; input voltage 0 to 5.5V"+ },+ {+ "number": "6",+ "name": "A5",+ "type": "input",+ "description": "A5 data input for buffering and driving to corresponding output Y5; input voltage 0 to 5.5V"+ },+ {+ "number": "7",+ "name": "A6",+ "type": "input",+ "description": "A6 data input for buffering and driving to corresponding output Y6; input voltage 0 to 5.5V"+ },+ {+ "number": "8",+ "name": "A7",+ "type": "input",+ "description": "A7 data input for buffering and driving to corresponding output Y7; input voltage 0 to 5.5V"+ },+ {+ "number": "9",+ "name": "A8",+ "type": "input",+ "description": "A8 data input for buffering and driving to corresponding output Y8; input voltage 0 to 5.5V"+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin and return path for internal circuits, 0V reference"+ },+ {+ "number": "11",+ "name": "Y8",+ "type": "tri_state",+ "description": "Y8 tri-state buffered output driven from A8 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "12",+ "name": "Y7",+ "type": "tri_state",+ "description": "Y7 tri-state buffered output driven from A7 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "13",+ "name": "Y6",+ "type": "tri_state",+ "description": "Y6 tri-state buffered output driven from A6 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "14",+ "name": "Y5",+ "type": "tri_state",+ "description": "Y5 tri-state buffered output driven from A5 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "15",+ "name": "Y4",+ "type": "tri_state",+ "description": "Y4 tri-state buffered output driven from A4 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "16",+ "name": "Y3",+ "type": "tri_state",+ "description": "Y3 tri-state buffered output driven from A3 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "17",+ "name": "Y2",+ "type": "tri_state",+ "description": "Y2 tri-state buffered output driven from A2 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "18",+ "name": "Y1",+ "type": "tri_state",+ "description": "Y1 tri-state buffered output driven from A1 input when enabled; output voltage 0 to VCC, ±25mA continuous"+ },+ {+ "number": "19",+ "name": "OE2",+ "type": "input",+ "description": "Output Enable 2 control input for tri-state buffers; input voltage 0 to 5.5V"+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply voltage input, operating range 2V 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": 10,+ "cost_usd": 0.1179,+ "at": "2026-10-01T05:49:35"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74ahc541",+ "pages": 42,+ "sha256": "2bf701d65dda347a",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}