All Alternatives

Alternatives to Texas Instruments SN74CBT3345CPWR

Texas Instruments SN74CBT3345CPWR 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 SN74CBT3345CPWR

SN74CBT3345CPWR compared against its qualified second sources
SN74CBT3345CPWRTexas InstrumentsSN74CBT3345CPWTexas InstrumentsSN74CBT3345CDBQRTexas Instruments+1more
FFF CompatibilityUses the exact same 20-TSSOP (PW) package footprint and pinout assignments.Shares the identical mechanical specifications and outline dimensions.Provides identical electrical specifications, including a 4V to 5.5V supply range and -2V undershoot protection.Housed in a smaller 20-QSOP (DBQ) package with a tighter 0.635mm pin pitch, preventing direct mounting on the TSSOP land pattern.Significantly narrower package body width (0.154" vs 0.173") and smaller overall layout footprint.Utilizes the exact same silicon die, delivering identical absolute maximum ratings and electrical performance.
AI Summary

SN74CBT3345CPWR by Texas Instruments: Bus Switch 8 x 1:1 20-TSSOP.

This is the exact same bus switch IC housed in the identical TSSOP-20 package, with the only difference being the delivery carrier format (Tube instead of Tape & Reel). It serves as a seamless, 100% drop-in physical and electrical replacement.

  • Identical silicon die providing identical electrical characteristics
  • Same TSSOP-20 (PW) package footprint with exact pin compatibility
  • Maintains specialized -2V undershoot protection on ports A and B
  • Shipped in tubes rather than tape-and-reel, which may impact high-speed automated assembly lines

This candidate is an identical electrical sibling containing the same silicon die, but packaged in a smaller 20-pin QSOP (DBQ) format. While it offers identical performance and protection, it requires a PCB layout redesign due to the different physical footprint and tighter pin pitch.

  • Identical electrical characteristics and -2V undershoot protection
  • More compact QSOP-20 (DBQ) footprint saves physical board space
  • Requires a PCB layout redesign to accommodate the smaller physical footprint and tighter 0.635mm pin pitch
Lifecycle StatusActiveActiveActive
Market AvailabilityIn stockIn stockIn stock
REACHREACHREACHREACH
RoHSRoHSRoHSRoHS
——— ————————— ——— ———————— ———————— ————— ———
—————— ————————— ————————— ——— ———————— ——————
———— ————— ————— —————————— ————————— ——— ————
—— ————————— ———————— ————— —————————— ————
——— ————————— ——— ———————— ———————— ————— ———
—————— ————————— ————————— ——— ———————— ——————
———— ————— ————— —————————— ————————— ——— ————
—— ————————— ———————— ————— —————————— ————

Unlock all 3 alternatives

Sign in with your work email to read every gated row on this table — description, lead time, origin, export control and the full technical data.

Sign in to unlock

Signing in creates a free Parter account. We use your name and email to contact you about Parter — see our Privacy Policy.

  • Find & compare verified second sources
  • Spot risk early with real-time part monitoring
  • Stay compliant and production-ready

Related parts

PartMarket availabilityLifecycleAlternatives available
SN74CBT3345PWRTexas InstrumentsDiscontinuedObsolete5Alternatives availableSee Alternatives
SN74CBTLV3257PWTexas InstrumentsIn stockObsolete5Alternatives availableSee Alternatives
SN74HCT138PWTexas InstrumentsIn stockObsolete4Alternatives availableSee Alternatives
SN74HCT541PWTexas InstrumentsIn stockObsolete5Alternatives availableSee Alternatives
SN74HC245DWRTexas InstrumentsIn stockActive5Alternatives availableSee Alternatives
SN74AHCT541PWTexas InstrumentsIn stockObsolete4Alternatives availableSee Alternatives

You searched one part. Parter watches your whole BOM.

  1. All your BOM, at once

    Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.

  2. Hear about problems before they hit production

    Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.

  3. Qualified replacements in minutes, not days

    Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.

Schedule a demo

See Parter in action

Discover how Parter can help your hardware team:

  • Streamline your hardware operations with AI
  • Detect and prevent lifecycle disruptions
  • Accelerate product development
  • Stay compliant and production-ready