component
CD74HC85PWR
Public Made by Adomby adom
Texas Instruments Digital Comparators, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# CD74HC85PWR++**Texas Instruments** · Digital Comparators · TSSOP-16++CD74HC85PWR from Texas Instruments, in a TSSOP-16. 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 | B3 | input | Most significant bit of 4-bit word B, compared against A3. |+| 2 | (A<B) IN | input | Cascading input for A<B from a previous stage, used for serial or parallel expansion; must not be left floating. |+| 3 | (A=B) IN | input | Cascading input for A=B from a previous stage, used for serial or parallel expansion; must not be left floating. |+| 4 | (A>B) IN | input | Cascading input for A>B from a previous stage, used for serial or parallel expansion; must not be left floating. |+| 5 | (A>B) OUT | output | Buffered output that goes high when word A is greater than word B. |+| 6 | (A=B) OUT | output | Buffered output that goes high when word A equals word B. |+| 7 | (A<B) OUT | output | Buffered output that goes high when word A is less than word B. |+| 8 | GND | power_in | Ground reference. |+| 9 | B0 | input | Least significant bit of 4-bit word B, compared against A0. |+| 10 | A0 | input | Least significant bit of 4-bit word A, compared against B0. |+| 11 | B1 | input | Bit 1 of 4-bit word B, compared against A1. |+| 12 | A1 | input | Bit 1 of 4-bit word A, compared against B1. |+| 13 | A2 | input | Bit 2 of 4-bit word A, compared against B2. |+| 14 | B2 | input | Bit 2 of 4-bit word B, compared against A2. |+| 15 | A3 | input | Most significant bit of 4-bit word A, compared against B3. |+| 16 | VCC | power_in | Supply voltage, 2 V to 6 V for HC types (absolute max 7 V); a 0.1-µF bypass capacitor close to the pin is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `CD74HC85PWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `cd74hc85pwr-etched.step` / `cd74hc85pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc85pwr.step` / `cd74hc85pwr.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/cd74hc85.pdf) (27 pp, sha256 `1a8b9d560ba6e590`, retrieved 2026-10-08, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/cd74hc85pwr-datasheet.pdf)
page.jsonadded+248@@ -0,0 +1,248 @@+{+ "slug": "cd74hc85pwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Digital Comparators, TSSOP-16. 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must not be left floating."+ },+ {+ "number": "3",+ "name": "(A=B) IN",+ "type": "input",+ "description": "Cascading input for A=B from a previous stage, used for serial or parallel expansion; must not be left floating."+ },+ {+ "number": "4",+ "name": "(A>B) IN",+ "type": "input",+ "description": "Cascading input for A>B from a previous stage, used for serial or parallel expansion; must not be left floating."+ },+ {+ "number": "5",+ "name": "(A>B) OUT",+ "type": "output",+ "description": "Buffered output that goes high when word A is greater than word B."+ },+ {+ "number": "6",+ "name": "(A=B) OUT",+ "type": "output",+ "description": "Buffered output that goes high when word A equals word B."+ },+ {+ "number": "7",+ "name": "(A<B) OUT",+ "type": "output",+ "description": "Buffered output that goes high when word A is less than word B."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference."+ },+ {+ "number": "9",+ "name": "B0",+ "type": "input",+ "description": "Least significant bit of 4-bit word B, compared against A0."+ },+ {+ "number": "10",+ "name": "A0",+ "type": "input",+ "description": "Least significant bit of 4-bit word A, compared against B0."+ },+ {+ "number": "11",+ "name": "B1",+ "type": "input",+ "description": "Bit 1 of 4-bit word B, compared against A1."+ },+ {+ "number": "12",+ "name": "A1",+ "type": "input",+ "description": "Bit 1 of 4-bit word A, compared against B1."+ },+ {+ "number": "13",+ "name": "A2",+ "type": "input",+ "description": "Bit 2 of 4-bit word A, compared against B2."+ },+ {+ "number": "14",+ "name": "B2",+ "type": "input",+ "description": "Bit 2 of 4-bit word B, compared against A2."+ },+ {+ "number": "15",+ "name": "A3",+ "type": "input",+ "description": "Most significant bit of 4-bit word A, compared against B3."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 2 V to 6 V for HC types (absolute max 7 V); a 0.1-µF bypass capacitor close to the pin is recommended."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-sonnet-5-5",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 27,+ "cost_usd": 0.4833,+ "at": "2026-10-08T20:04:25"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/cd74hc85.pdf",+ "pages": 27,+ "sha256": "1a8b9d560ba6e590",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "cd74hc85pwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "cd74hc85pwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "320c3c1d5a2f06284e5197d5f983817fa4564d30511ceeeabb93491fa40f38bd",+ "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]"+ }+}