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docs 74hc4066d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
74hc4066d-etched.fit.json 74hc4066d: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
74hc4066d-etched.glb 74hc4066d: one-pass backfill (re-etched) · Ray
74hc4066d-etched.step 74hc4066d: one-pass backfill (re-etched) · Ray
74hc4066d-hero.glb 74hc4066d: hero from the plain model · Ray
74hc4066d-hero.overlay.json 74hc4066d: hero from the plain model · Ray
74hc4066d.glb Publish 0.1.0 · Ray
74hc4066d.kicad_mod Publish 0.1.0 · Ray
74hc4066d.kicad_sym Publish 0.1.0 · Ray
74hc4066d.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
74hc4066d.step Publish 0.1.0 · Ray
package.json Publish 0.2.2 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json Publish 0.2.2 · Ray
README.md 74hc4066d: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

74HC4066D

Nexperia · Analog Switches, Multiplexers · SOIC-14

74HC4066D from Nexperia, in a SOIC-14. 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 1Y bidirectional Analog switch 1 independent input or output terminal. Bidirectional analog I/O connected to 1Z through the analog switch when enable 1E is HIGH. Switch current limit ±25 mA.
2 1Z bidirectional Analog switch 1 independent input or output terminal. Bidirectional analog I/O connected to 1Y through the analog switch when enable 1E is HIGH.
3 2Z bidirectional Analog switch 2 independent input or output terminal. Bidirectional analog I/O connected to 2Y when 2E is HIGH.
4 2Y bidirectional Analog switch 2 independent input or output terminal. Bidirectional analog I/O connected to 2Z when 2E is HIGH.
5 2E input Enable input for switch 2 (active HIGH). H = switch ON, L = switch OFF. VIH ≥ 3.15 V at VCC = 4.5 V (CMOS levels for 74HC).
6 3E input Enable input for switch 3 (active HIGH). H = switch ON, L = switch OFF.
7 GND power_in Ground reference (0 V). Maximum ground current ±50 mA.
8 3Y bidirectional Analog switch 3 independent input or output terminal. Bidirectional analog I/O connected to 3Z when 3E is HIGH.
9 3Z bidirectional Analog switch 3 independent input or output terminal. Bidirectional analog I/O connected to 3Y when 3E is HIGH.
10 4Z bidirectional Analog switch 4 independent input or output terminal. Bidirectional analog I/O connected to 4Y when 4E is HIGH.
11 4Y bidirectional Analog switch 4 independent input or output terminal. Bidirectional analog I/O connected to 4Z when 4E is HIGH.
12 4E input Enable input for switch 4 (active HIGH). H = switch ON, L = switch OFF.
13 1E input Enable input for switch 1 (active HIGH). H = switch ON, L = switch OFF.
14 VCC power_in Positive supply voltage. Operating range 2.0 V to 10.0 V for 74HC4066; absolute max +11.0 V. ICC max 50 mA.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOIC-14
Category Interface
Pins 14

Ordering variants

  • 74HC4066DD
  • 74HC4066DPW
  • 74HC4066DBQ

CAD (KiCad official)

  • Symbol: 74HC4066D
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: 74hc4066d-etched.step / 74hc4066d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74hc4066d.step / 74hc4066d.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
74hc4066d.step 195 KB You want the bare part, or you mark your own boards.
74hc4066d-etched.step 2.2 MB You want the part with 74HC4066D already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 551 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (21 pp, sha256 3fca0cb9e46e306f, 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