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SN54S251J — DIP-14/16 package (representative)
DIP-14/16
Representative of package type
Texas Instruments Inc

SN54S251J

Data Selector/Multiplexer · CDIP-16 · Logic
Part Status: Obsolete
Data last refreshed Jul 28, 2026
Manufacturer
Texas Instruments Inc
Mfr Part #
SN54S251J
Series
SN54S251
Category
Data Selector/Multiplexer
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Family54S
Outputs3-state
Inputs8:1
Physical & Thermal
Package / CaseCDIP-16
Mounting TypeThrough Hole
SeriesSN54S251
Operating Temperature-55°C ~ 125°C
Classification & Lifecycle
CategoryData Selector/Multiplexer
TypeLogic
Part StatusObsolete

3-to-8 line data selector/multiplexer, 3-state outputs, Schottky TTL

Part Activity

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Recent search and sourcing activity for SN54S251J.

Engineering FAQ

SN54S251J is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of SN54S251J?
Family: 54S; Outputs: 3-state; Inputs: 8:1.
What package is SN54S251J supplied in?
SN54S251J is supplied in the CDIP-16 package, through hole, rated -55°C ~ 125°C.
Can ZDI source SN54S251J beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

SN54S251J is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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