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Alternatives to Texas Instruments SN74CBT3345PWR

Texas Instruments SN74CBT3345PWR and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for Texas Instruments SN74CBT3345PWR

SN74CBT3345PWR compared against its qualified second sources
SN74CBT3345PWRTexas InstrumentsSN74CBT3345CPWTexas InstrumentsSN74CBT3345CPWRTexas Instruments+3more
FFF CompatibilityIdentical 20-pin TSSOP package with 100% matching pin assignments and layout footprint.Identical physical package dimensions and surface-mount style.Identical electrical characteristics (4.5V to 5.5V operating range) with upgraded active undershoot protection.Identical 20-pin TSSOP package with 100% matching pin assignments and layout footprint.Identical physical package dimensions and surface-mount style.Identical electrical characteristics (4.5V to 5.5V operating range) with upgraded active undershoot protection.
AI Summary

SN74CBT3345PWR by Texas Instruments: Bus Switch 8 x 1:1 20-TSSOP.

The SN74CBT3345CPW is the tube-packaged sibling of the SN74CBT3345CPWR. It offers identical electrical parameters, active undershoot protection, and a matching TSSOP-20 footprint. The only difference is the bulk tube carrier form factor, making it ideal for low-volume production run substitutions.

  • True direct drop-in replacement in identical TSSOP-20 package
  • Active status ensuring long-term supply security
  • Features upgraded active undershoot protection circuitry up to -2V
  • Supplied in Tube packaging rather than Tape & Reel, which may impact high-volume automated assembly lines.

The SN74CBT3345CPWR is the modern, active-status direct replacement for the obsolete SN74CBT3345PWR. It preserves the same TSSOP-20 footprint, dual-enable control structure, and 5-ohm typical on-resistance while adding active undershoot protection circuitry. This is the optimal drop-in solution requiring zero layout or firmware adjustments.

  • True direct drop-in replacement in identical TSSOP-20 package
  • Active status ensuring long-term supply security
  • Features upgraded active undershoot protection circuitry up to -2V
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedIn stockIn stock
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