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Alternatives to Texas Instruments CD74HCT123M

Texas Instruments CD74HCT123M and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

CD74HCT123M compared against its qualified second sources
CD74HCT123MTexas InstrumentsCD74HCT123M96Texas Instruments74HCT123D,653Nexperia+2more
FFF CompatibilityIdentical 16-pin SOIC footprint and pinout assignment.Identical 16-SOIC package dimensions (0.154 in / 3.90 mm width).Identical electrical characteristics, supply voltage, and logic performance.Identical 16-pin SOIC footprint and pinout assignment verified via pinout extraction.Identical standard 16-SOIC package dimensions (3.90 mm width).The lower operating temperature limit is -40°C compared to the original part's -55°C.
AI Summary

CD74HCT123M by Texas Instruments: Monostable Multivibrator 25 ns 16-SOIC.

This is the exact same IC from the same manufacturer, differing only in the packaging carrier (Tape & Reel vs. Tube). It offers full compatibility and ensures seamless replacement.

  • Perfect direct drop-in replacement
  • Exact manufacturer silicon match
  • Identical -55°C to 125°C temperature range
  • Shipped in Tape & Reel packaging rather than original Tube packaging.

An active, industry-standard second-source logic part. It matches all electrical and physical parameters, except for a slightly narrower lower temperature limit.

  • High-reliability pin-compatible alternative from Nexperia
  • Active production status with high distributor availability
  • TTL-compatible inputs match the original HCT logic threshold levels
  • Narrower operating temperature range (-40°C to 125°C vs. -55°C to 125°C for original).
Lifecycle StatusObsoleteActiveActive
Market AvailabilityIn stockIn stockIn stock
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DescriptionMonostable Multivibrator 25 ns 16-SOICMonostable Multivibrator 25 ns 16-SOICMonostable Multivibrator 77 ns 16-SO
ManufacturerTexas InstrumentsTexas InstrumentsNexperia
TypeLogicLogicLogic
DatasheetOpenOpenOpen
Lead Time6 weeks9 weeks54 weeks
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542.39.0090--
Moisture Sensitivity Level1 (Unlimited)--
Logic TypeMonostable--
Mounting TypeSurface Mount--
Package / Case16-SOIC (0.154", 3.90mm Width)--
Voltage - Supply4.5 V ~ 5.5 V--
Propagation Delay25 ns--
Independent Circuits2--
Operating Temperature-55°C ~ 125°C--
Schmitt Trigger InputNo--

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CD74AC86MTexas InstrumentsIn stockObsolete5Alternatives availableSee Alternatives

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Frequently asked questions

Yes. The Texas Instruments CD74HCT123M is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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