component
74HC85D
Public Made by Adomby adom
Nexperia Comparators, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown74HC85D
Nexperia · Comparators · SOIC-16
74HC85D from Nexperia, in a SOIC-16. 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 | B3 | input | Word B input, bit 3 (most significant bit of B). CMOS logic input compared against A3. |
| 2 | IA<B | input | A<B expansion (cascading) input. Tie to logic LOW when this device is the least-significant stage of a cascade. |
| 3 | IA=B | input | A=B expansion (cascading) input. Tie to logic HIGH when this device is the least-significant stage of a cascade. |
| 4 | IA>B | input | A>B expansion (cascading) input. Tie to logic LOW when this device is the least-significant stage of a cascade. |
| 5 | QA>B | output | A>B comparison output. HIGH when word A is numerically greater than word B (considering the cascading inputs). |
| 6 | QA=B | output | A=B comparison output. HIGH when word A equals word B and the I A=B cascading input is HIGH. |
| 7 | QA<B | output | A<B comparison output. HIGH when word A is numerically less than word B (considering the cascading inputs). |
| 8 | GND | power_in | Ground reference (0 V). |
| 9 | B0 | input | Word B input, bit 0 (least significant bit of B). |
| 10 | A0 | input | Word A input, bit 0 (least significant bit of A). |
| 11 | B1 | input | Word B input, bit 1. |
| 12 | A1 | input | Word A input, bit 1. |
| 13 | A2 | input | Word A input, bit 2. |
| 14 | B2 | input | Word B input, bit 2. |
| 15 | A3 | input | Word A input, bit 3 (most significant bit of A). |
| 16 | VCC | power_in | Positive supply voltage. 2.0 V to 6.0 V for 74HC85 (4.5 V to 5.5 V for 74HCT85). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOIC-16 |
| Category | Op-amp/Cmp |
| Pins | 16 |
Ordering variants
74HC85DD74HC85DPW
CAD (KiCad official)
- Symbol:
74HC85D - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
74hc85d-etched.step/74hc85d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74hc85d.step/74hc85d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (17 pp, sha256
2c59811dc09891a1, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).