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Contents

README

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SN74CBT1G125DCKR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SC-70-5

SN74CBT1G125DCKR from Texas Instruments, in a SC-70-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OE input TTL-compatible control input; low level connects A to B, high level disconnects them.
2 A bidirectional Bus switch port A; bidirectional connection to port B with 5-20 Ω on-state resistance when enabled by low OE.
3 GND power_in Ground reference.
4 B bidirectional Bus switch port B; bidirectional connection to port A with 5-20 Ω on-state resistance when enabled by low OE.
5 VCC power_in Positive supply voltage; 4-5.5 V recommended operating range.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SC-70-5
Category Logic
Pins 5

CAD (KiCad official)

  • Symbol: SN74CBT1G125DCKR
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC-70-5 (KiCad packages3D, STEP)
  • 3D model files: sn74cbt1g125dckr-etched.step / sn74cbt1g125dckr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74cbt1g125dckr.step / sn74cbt1g125dckr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (14 pp, sha256 605a3e57fdd68ba8, retrieved 2026-09-24, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF