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SN74LVC1T45DBVT

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Texas Instruments Buffer/Driver/Transceiver, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SN74LVC1T45DBVT

Texas Instruments · Buffer/Driver/Transceiver · SOT-23-6

SN74LVC1T45DBVT 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 SYSTEM-1 supply voltage for the A port (1.65V to 5.5V). Sets the A-port output level and the DIR input threshold. Absolute max 6.5V.
2 GND power_in Device ground reference (0V).
3 A bidirectional A-port data I/O. Output level referenced to VCCA; input threshold also on VCCA side. Drives up to ±24mA at 3.3V. High-impedance when the port is disabled (opposite direction selected) or during VCC-isolation.
4 B bidirectional B-port data I/O. Output level referenced to VCCB; input threshold also on VCCB side. Drives up to ±24mA at 3.3V. High-impedance when the port is disabled or during VCC-isolation.
5 DIR input Direction-control input, referenced to VCCA. DIR=low (GND) enables B→A transmission (A is output); DIR=high (VCCA) enables A→B transmission (B is output). Must be driven high or low; must not float.
6 VCCB power_in SYSTEM-2 supply voltage for the B port (1.65V to 5.5V). Sets the B-port output level and B-port input threshold. Absolute max 6.5V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SN74LVC1T45DBVTDBVR
  • SN74LVC1T45DBVT
  • SN74LVC1T45DBVTDCKR
  • SN74LVC1T45DBVTDCKT
  • SN74LVC1T45DBVTDRLR
  • SN74LVC1T45DBVTDPKR
  • SN74LVC1T45DBVTYZPR

CAD (KiCad official)

  • Symbol: SN74LVC1T45DBVT
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sn74lvc1t45dbvt-etched.step / sn74lvc1t45dbvt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc1t45dbvt.step / sn74lvc1t45dbvt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 e6fbd84001613995, 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