component

74HC85D

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by Ray

Nexperia Comparators, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmp74hc85d
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74HC85D

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

  • 74HC85DD
  • 74HC85DPW

CAD (KiCad official)

  • Symbol: 74HC85D
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)

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).

Datasheet PDF