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SN74LVC1G3157DCKR

Public Made by Adom

by adom

Texas Instruments Analog Switches, Multiplexers, SC-70-6(SOT-363). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs sn74lvc1g3157dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 10d ago
README.md sn74lvc1g3157dckr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 14d ago
sn74lvc1g3157dckr-etched.fit.json sn74lvc1g3157dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74lvc1g3157dckr-etched.glb sn74lvc1g3157dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74lvc1g3157dckr-etched.step sn74lvc1g3157dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74lvc1g3157dckr.glb Publish 0.1.0 · Ray 1mo ago
sn74lvc1g3157dckr.kicad_mod Publish 0.1.0 · Ray 1mo ago
sn74lvc1g3157dckr.kicad_sym Publish 0.1.0 · Ray 1mo ago
sn74lvc1g3157dckr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 6 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
sn74lvc1g3157dckr.step Publish 0.1.0 · Ray 1mo ago

SN74LVC1G3157DCKR

Texas Instruments · Analog Switches, Multiplexers · SC-70-6(SOT-363)

SN74LVC1G3157DCKR from Texas Instruments, in a SC-70-6(SOT-363). 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 B2 bidirectional Switch I/O terminal 2. Connected to common A when S is driven high. Bidirectional analog/digital signal path, 0 V to VCC signal range.
2 GND power_in Ground reference (0 V).
3 B1 bidirectional Switch I/O terminal 1. Connected to common A when S is driven low. Bidirectional analog/digital signal path, 0 V to VCC signal range.
4 A bidirectional Common terminal of the SPDT switch. Routes to B1 when S=0 and to B2 when S=1. Bidirectional analog/digital signal path.
5 VCC power_in Supply voltage input. DCK (SC70) package: 1.65 V to 5.5 V recommended (absolute max 6 V). Decouple locally to GND.
6 S input Select control input. S=low connects A to B1; S=high connects A to B2. CMOS input referenced to VCC (VIH ≈ 0.7·VCC to 0.75·VCC). Must not be left floating.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-6(SOT-363)
Category Interface
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SN74LVC1G3157DCKR
  • SN74LVC1G3157DCKRDCKT
  • SN74LVC1G3157DCKRDBVR
  • SN74LVC1G3157DCKRDBVT
  • SN74LVC1G3157DCKRDRLR
  • SN74LVC1G3157DCKRDRYR
  • SN74LVC1G3157DCKRDSFR
  • SN74LVC1G3157DCKRDTBR
  • SN74LVC1G3157DCKRYZPR

CAD (KiCad official)

  • Symbol: SN74LVC1G3157DCKR
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6(SOT-363) (KiCad packages3D, STEP)
  • 3D model files: sn74lvc1g3157dckr-etched.step / sn74lvc1g3157dckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc1g3157dckr.step / sn74lvc1g3157dckr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sn74lvc1g3157dckr.step 99 KB You want the bare part, or you mark your own boards.
sn74lvc1g3157dckr-etched.step 2.7 MB You want the part with SN74LVC1G3157DCKR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 677 faces against 117 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: Texas Instruments datasheet (56 pp, sha256 2a39b0f597c54e20, 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