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SN74AHC541DWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# SN74AHC541DWR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil++SN74AHC541DWR from Texas Instruments, in a SOIC-20-300mil. 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 | OE1 | input | Output Enable 1 (active low); when high, all corresponding Y outputs are in high-impedance state. |+| 2 | A1 | input | A1 Input; non-inverted data input to octal buffer/driver. |+| 3 | A2 | input | A2 Input; non-inverted data input to octal buffer/driver. |+| 4 | A3 | input | A3 Input; non-inverted data input to octal buffer/driver. |+| 5 | A4 | input | A4 Input; non-inverted data input to octal buffer/driver. |+| 6 | A5 | input | A5 Input; non-inverted data input to octal buffer/driver. |+| 7 | A6 | input | A6 Input; non-inverted data input to octal buffer/driver. |+| 8 | A7 | input | A7 Input; non-inverted data input to octal buffer/driver. |+| 9 | A8 | input | A8 Input; non-inverted data input to octal buffer/driver. |+| 10 | GND | power_in | Ground; return path for supply current. |+| 11 | Y8 | tri_state | Y8 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 12 | Y7 | tri_state | Y7 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 13 | Y6 | tri_state | Y6 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 14 | Y5 | tri_state | Y5 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 15 | Y4 | tri_state | Y4 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 16 | Y3 | tri_state | Y3 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 17 | Y2 | tri_state | Y2 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 18 | Y1 | tri_state | Y1 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high. |+| 19 | OE2 | input | Output Enable 2 (active low); when high, all corresponding Y outputs are in high-impedance state. |+| 20 | VCC | power_in | Power Supply; positive supply voltage, operating range 2 V to 5.5 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-20-300mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74AHC541DWR`+- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`+- 3D model: SOIC-20-300mil (KiCad packages3D, STEP)+- 3D model files: `sn74ahc541dwr-etched.step` / `sn74ahc541dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ahc541dwr.step` / `sn74ahc541dwr.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 2026-09-26, 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/sn74ahc541dwr-datasheet.pdf)
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when high, all corresponding Y outputs are in high-impedance state."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "A1 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "A2 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "4",+ "name": "A3",+ "type": "input",+ "description": "A3 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "5",+ "name": "A4",+ "type": "input",+ "description": "A4 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "6",+ "name": "A5",+ "type": "input",+ "description": "A5 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "7",+ "name": "A6",+ "type": "input",+ "description": "A6 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "8",+ "name": "A7",+ "type": "input",+ "description": "A7 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "9",+ "name": "A8",+ "type": "input",+ "description": "A8 Input; non-inverted data input to octal buffer/driver."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; return path for supply current."+ },+ {+ "number": "11",+ "name": "Y8",+ "type": "tri_state",+ "description": "Y8 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "12",+ "name": "Y7",+ "type": "tri_state",+ "description": "Y7 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "13",+ "name": "Y6",+ "type": "tri_state",+ "description": "Y6 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "14",+ "name": "Y5",+ "type": "tri_state",+ "description": "Y5 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "15",+ "name": "Y4",+ "type": "tri_state",+ "description": "Y4 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "16",+ "name": "Y3",+ "type": "tri_state",+ "description": "Y3 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "17",+ "name": "Y2",+ "type": "tri_state",+ "description": "Y2 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "18",+ "name": "Y1",+ "type": "tri_state",+ "description": "Y1 Output (tri-state); non-inverted data output when OE is low, high-impedance when OE is high."+ },+ {+ "number": "19",+ "name": "OE2",+ "type": "input",+ "description": "Output Enable 2 (active low); when high, all corresponding Y outputs are in high-impedance state."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Power Supply; positive supply voltage, operating range 2 V to 5.5 V."+ }+ ],+ "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": 42,+ "cost_usd": 0.256,+ "at": "2026-09-26T14:57:13"+ },+ "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]"+ }+}