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54F623J — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Fairchild Semiconductor

54F623J

Bus Transceiver · 20-CDIP · Logic
Part Status: Obsolete
Data last refreshed Jul 23, 2026
Manufacturer
Fairchild Semiconductor
Mfr Part #
54F623J
Series
54F623
Category
Bus Transceiver
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Logic Family54F (FAST TTL)
Temperature Range-55°C to 125°C
Physical & Thermal
Package / Case20-CDIP
Mounting TypeThrough Hole
Series54F623
Operating Temperature-55°C ~ 125°C
Classification & Lifecycle
CategoryBus Transceiver
TypeLogic
Part StatusObsolete

Octal bus transceiver, 3-state outputs, military temperature range

Part Activity

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54F623J viewed on the web · Web User
54F623J viewed on the web · Web User
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Recent search and sourcing activity for 54F623J.

Engineering FAQ

54F623J 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 54F623J?
Logic Family: 54F (FAST TTL); Temperature Range: -55°C to 125°C.
What package is 54F623J supplied in?
54F623J is supplied in the 20-CDIP package, through hole, rated -55°C ~ 125°C.
Can ZDI source 54F623J 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

54F623J 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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