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Name Last commit message Last updated
docs sn74lvc2g34dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d 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 sn74lvc2g34dckr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 21h ago
README.md sn74lvc2g34dckr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago
sn74lvc2g34dckr-etched.fit.json sn74lvc2g34dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn74lvc2g34dckr-etched.glb sn74lvc2g34dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn74lvc2g34dckr-etched.step sn74lvc2g34dckr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn74lvc2g34dckr.glb Publish 0.1.0 · Ray 1mo ago
sn74lvc2g34dckr.kicad_mod Publish 0.1.0 · Ray 1mo ago
sn74lvc2g34dckr.kicad_sym Publish 0.1.0 · Ray 1mo ago
sn74lvc2g34dckr.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
sn74lvc2g34dckr.step Publish 0.1.0 · Ray 1mo ago

SN74LVC2G34DCKR

Texas Instruments · Buffer/Driver/Transceiver · SC-70-6

SN74LVC2G34DCKR from Texas Instruments, in a SC-70-6. 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 1A input Buffer 1 input. CMOS logic input accepting 0 V to 5.5 V regardless of VCC (supports down-translation and live insertion). VIH/VIL scale with VCC (e.g. 0.65×VCC / 0.35×VCC at VCC=1.65-1.95 V).
2 GND power_in Ground reference (0 V) for the device. Continuous current through VCC or GND is limited to ±100 mA absolute maximum.
3 2A input Buffer 2 input. CMOS logic input accepting 0 V to 5.5 V regardless of VCC. Unused inputs must be tied to VCC or GND to avoid floating CMOS input current.
4 2Y output Buffer 2 output (Y = A). Push-pull CMOS output rated ±24 mA at VCC = 3 V (up to ±32 mA at VCC = 4.5 V). Placed in high-impedance / Ioff mode when VCC = 0 V.
5 VCC power_in Positive supply pin. Recommended operating range 1.65 V to 5.5 V (data-retention minimum 1.5 V); absolute maximum 6.5 V. Bypass locally with a 0.1 µF ceramic capacitor to GND.
6 1Y output Buffer 1 output (Y = A). Push-pull CMOS output rated ±24 mA at VCC = 3 V. Ioff circuitry disables the output when the device is powered down.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-6
Category Logic
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SN74LVC2G34DCKR
  • SN74LVC2G34DCKRDCKT
  • SN74LVC2G34DCKRDBVR
  • SN74LVC2G34DCKRDBVT
  • SN74LVC2G34DCKRDRLR
  • SN74LVC2G34DCKRYZPR

CAD (KiCad official)

  • Symbol: SN74LVC2G34DCKR
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6 (KiCad packages3D, STEP)
  • 3D model files: sn74lvc2g34dckr-etched.step / sn74lvc2g34dckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc2g34dckr.step / sn74lvc2g34dckr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sn74lvc2g34dckr.step 99 KB You want the bare part, or you mark your own boards.
sn74lvc2g34dckr-etched.step 2.6 MB You want the part with SN74LVC2G34DCKR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 640 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 (30 pp, sha256 faa5171ab00e49fc, 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