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SN74AXCH1T45DBVR

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by Ray

Texas Instruments Translators / Level Shifters, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SN74AXCH1T45DBVR

Texas Instruments · Translators / Level Shifters · SOT-23-6

SN74AXCH1T45DBVR from Texas Instruments, in a SOT-23-6. 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 VCCA power_in A-port supply voltage. Operating range 0.65 V ≤ VCCA ≤ 3.6 V. Also serves as the reference rail for the DIR control input.
2 GND power_in Device ground reference.
3 A bidirectional Input/output A. Referenced to VCCA. Bidirectional data pin with active bus-hold circuitry that holds unused/undriven inputs at a valid logic level.
4 B bidirectional Input/output B. Referenced to VCCB. Bidirectional data pin with active bus-hold circuitry that holds unused/undriven inputs at a valid logic level.
5 DIR input Direction control input, referenced to VCCA. DIR=HIGH selects A-to-B translation; DIR=LOW selects B-to-A translation. If either VCCA or VCCB is below 100 mV, outputs are disabled (high-impedance) regardless of DIR state.
6 VCCB power_in B-port supply voltage. Operating range 0.65 V ≤ VCCB ≤ 3.6 V. Independently configurable from VCCA to enable voltage translation.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-6
Category Logic
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SN74AXCH1T45DBVR
  • SN74AXCH1T45DBVRDBVT
  • SN74AXCH1T45DBVRDCKR
  • SN74AXCH1T45DBVRDCKT
  • SN74AXCH1T45DBVRDTQR
  • SN74AXCH1T45DBVRDRYR

CAD (KiCad official)

  • Symbol: SN74AXCH1T45DBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (43 pp, sha256 7d46cab66f1aea55, 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