component
CD74HC541PWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+56@@ -0,0 +1,56 @@+# CD74HC541PWR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · TSSOP-20++CD74HC541PWR from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OE1 | input | Active-low Output Enable 1; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs. |+| 2 | A0 | input | Buffered noninverting data input 0 that is passed to output Y0 when both output enables are LOW. |+| 3 | A1 | input | Buffered noninverting data input 1 that is passed to output Y1 when both output enables are LOW. |+| 4 | A2 | input | Buffered noninverting data input 2 that is passed to output Y2 when both output enables are LOW. |+| 5 | A3 | input | Buffered noninverting data input 3 that is passed to output Y3 when both output enables are LOW. |+| 6 | A4 | input | Buffered noninverting data input 4 that is passed to output Y4 when both output enables are LOW. |+| 7 | A5 | input | Buffered noninverting data input 5 that is passed to output Y5 when both output enables are LOW. |+| 8 | A6 | input | Buffered noninverting data input 6 that is passed to output Y6 when both output enables are LOW. |+| 9 | A7 | input | Buffered noninverting data input 7 that is passed to output Y7 when both output enables are LOW. |+| 10 | GND | power_in | Ground reference (0 V) supply pin for the device. |+| 11 | Y7 | tri_state | Three-state noninverting buffered output for A7, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 12 | Y6 | tri_state | Three-state noninverting buffered output for A6, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 13 | Y5 | tri_state | Three-state noninverting buffered output for A5, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 14 | Y4 | tri_state | Three-state noninverting buffered output for A4, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 15 | Y3 | tri_state | Three-state noninverting buffered output for A3, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 16 | Y2 | tri_state | Three-state noninverting buffered output for A2, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 17 | Y1 | tri_state | Three-state noninverting buffered output for A1, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 18 | Y0 | tri_state | Three-state noninverting buffered output for A0, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |+| 19 | OE2 | input | Active-low Output Enable 2; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs. |+| 20 | VCC | power_in | Positive supply voltage pin; recommended operating range is 2 V to 6 V for HC types (4.5 V to 5.5 V for HCT types). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `CD74HC541PWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `cd74hc541pwr-etched.step` / `cd74hc541pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc541pwr.step` / `cd74hc541pwr.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/lit/ds/symlink/cd74hc541.pdf) (26 pp, sha256 `51030bc4f84d8bfd`, retrieved 2026-09-23, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-5` (text+vision), consensus `claude-opus-4-8` (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/cd74hc541pwr-datasheet.pdf)
page.jsonadded+215@@ -0,0 +1,215 @@+{+ "slug": "cd74hc541pwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "cd74hc541pwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "cd74hc541pwr.kicad_sym",+ "cd74hc541pwr.kicad_mod",+ "cd74hc541pwr.glb",+ "cd74hc541pwr.step",+ "cd74hc541pwr.lbr",+ "docs/hero.png",+ "docs/cd74hc541pwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "CD74HC541PWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc541.pdf",+ "parts": {+ "symbol": "cd74hc541pwr.kicad_sym",+ "footprint": "cd74hc541pwr.kicad_mod",+ "model_3d": "cd74hc541pwr-etched.glb",+ "model_3d_plain": "cd74hc541pwr.glb",+ "model_3d_step": "cd74hc541pwr-etched.step",+ "model_3d_step_plain": "cd74hc541pwr.step",+ "lbr": "cd74hc541pwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2675785"+ },+ "pins": [+ {+ "number": "1",+ "name": "OE1",+ "type": "input",+ "description": "Active-low Output Enable 1; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs."+ },+ {+ "number": "2",+ "name": "A0",+ "type": "input",+ "description": "Buffered noninverting data input 0 that is passed to output Y0 when both output enables are LOW."+ },+ {+ "number": "3",+ "name": "A1",+ "type": "input",+ "description": "Buffered noninverting data input 1 that is passed to output Y1 when both output enables are LOW."+ },+ {+ "number": "4",+ "name": "A2",+ "type": "input",+ "description": "Buffered noninverting data input 2 that is passed to output Y2 when both output enables are LOW."+ },+ {+ "number": "5",+ "name": "A3",+ "type": "input",+ "description": "Buffered noninverting data input 3 that is passed to output Y3 when both output enables are LOW."+ },+ {+ "number": "6",+ "name": "A4",+ "type": "input",+ "description": "Buffered noninverting data input 4 that is passed to output Y4 when both output enables are LOW."+ },+ {+ "number": "7",+ "name": "A5",+ "type": "input",+ "description": "Buffered noninverting data input 5 that is passed to output Y5 when both output enables are LOW."+ },+ {+ "number": "8",+ "name": "A6",+ "type": "input",+ "description": "Buffered noninverting data input 6 that is passed to output Y6 when both output enables are LOW."+ },+ {+ "number": "9",+ "name": "A7",+ "type": "input",+ "description": "Buffered noninverting data input 7 that is passed to output Y7 when both output enables are LOW."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V) supply pin for the device."+ },+ {+ "number": "11",+ "name": "Y7",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A7, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "12",+ "name": "Y6",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A6, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "13",+ "name": "Y5",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A5, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "14",+ "name": "Y4",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A4, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "15",+ "name": "Y3",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A3, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "16",+ "name": "Y2",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A2, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "17",+ "name": "Y1",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A1, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "18",+ "name": "Y0",+ "type": "tri_state",+ "description": "Three-state noninverting buffered output for A0, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH."+ },+ {+ "number": "19",+ "name": "OE2",+ "type": "input",+ "description": "Active-low Output Enable 2; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply voltage pin; recommended operating range is 2 V to 6 V for HC types (4.5 V to 5.5 V for HCT types)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-sonnet-5",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-4-8",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 26,+ "cost_usd": 0.8372,+ "at": "2026-09-23T08:31:11"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/cd74hc541.pdf",+ "pages": 26,+ "sha256": "51030bc4f84d8bfd",+ "source_tier": "mfr"+ },+ "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]"+ }+}