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docs sn74lvc1g66dbvr: 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
package.json Publish 0.2.0 · 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 sn74lvc1g66dbvr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sn74lvc1g66dbvr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sn74lvc1g66dbvr-etched.fit.json sn74lvc1g66dbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g66dbvr-etched.glb sn74lvc1g66dbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g66dbvr-etched.step sn74lvc1g66dbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g66dbvr.glb Publish 0.1.0 · Ray
sn74lvc1g66dbvr.kicad_mod Publish 0.1.0 · Ray
sn74lvc1g66dbvr.kicad_sym Publish 0.1.0 · Ray
sn74lvc1g66dbvr.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
sn74lvc1g66dbvr.step Publish 0.1.0 · Ray

SN74LVC1G66DBVR

UMW · Analog Switches / Multiplexers · SOT-23-5

SN74LVC1G66DBVR from UMW, in a SOT-23-5. 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 A bidirectional Bidirectional analog/digital switch terminal A. Connected to terminal B when control C is high. Signal amplitude up to 5.5 V(peak), VIO range 0 to VCC.
2 B bidirectional Bidirectional analog/digital switch terminal B. Connected to terminal A when control C is high. Signal amplitude up to 5.5 V(peak), VIO range 0 to VCC.
3 GND power_in Ground reference for the device. All voltages are referenced to this pin.
4 C input Digital control input for the switch. L = switch OFF (A disconnected from B); H = switch ON. VIH threshold ~0.65×VCC to 0.7×VCC depending on VCC; input voltage range 0 to 5.5 V (accepts inputs above VCC).
5 VCC power_in Supply voltage input. Recommended operating range 1.65 V to 5.5 V; absolute maximum 6.5 V. Bypass with a local 0.1 µF ceramic capacitor to GND.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23-5
Category Comm/UART
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SN74LVC1G66DBVR
  • SN74LVC1G66DBVRDCKR
  • SN74LVC1G66DBVRDRLR
  • SN74LVC1G66DBVRDRYR
  • SN74LVC1G66DBVRDSFR
  • SN74LVC1G66DBVRYZPR

CAD (KiCad official)

  • Symbol: SN74LVC1G66DBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sn74lvc1g66dbvr-etched.step / sn74lvc1g66dbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc1g66dbvr.step / sn74lvc1g66dbvr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sn74lvc1g66dbvr.step 85 KB You want the bare part, or you mark your own boards.
sn74lvc1g66dbvr-etched.step 2.3 MB You want the part with SN74LVC1G66DBVR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 586 faces against 102 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: UMW datasheet (24 pp, sha256 673f1c8c93aa0132, retrieved 2026-08-17, tier: lcsc)
  • 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