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S74F540N — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Philips / Signetics

S74F540N

Logic Buffer / Line Driver · DIP-20 · Logic IC
In stock at ZDI Part Status: Obsolete
Data last refreshed Aug 12, 2026
Manufacturer
Philips / Signetics
Mfr Part #
S74F540N
Series
74F540
Category
Logic Buffer / Line Driver
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Stock296 pcs
Date Codes9414, 86+
PackagingTubed
Est. market range$0.4 – $2.50
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Logic Family74F (Fast TTL)
Functioninverting buffer, 8-bit
Output Type3-state
Physical & Thermal
Package / CaseDIP-20
Mounting TypeThrough Hole
Series74F540
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryLogic Buffer / Line Driver
TypeLogic IC
Part StatusObsolete

Octal inverting buffer/line driver, 3-state outputs, TTL family

Environmental & Export Classifications

RoHS Status
Non-Compliant

Availability & Sourcing

1 source row · masked
SourceMfrQtyDate CodeConditionStatus
ZDI Stock Philips / Signetics 296 9414, 86+ New In Stock RFQ

ZDI Stock — held in our warehouse · Market — recent offers, sourced on request · Live — fresh from the broker network. Supplier identity and cost are never shown.

Price History & Market Reference

Market Price Range

High$2.50
Low$0.4
Last$1.45
Price as of2026-08-12

ZDI Transaction

ZDI priceQuote on request

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
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Live search & sourcing activity for S74F540N — real inquiries only.

Engineering FAQ

answers from this part's real data
S74F540N 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 quantity and packaging is S74F540N in ZDI stock?
ZDI holds 296 pcs, packaged as Tubed, date code(s) 9414, 86+. Request a quote for confirmed quantity, lead time, and pricing.
What are the key specifications of S74F540N?
Logic Family: 74F (Fast TTL); Function: inverting buffer, 8-bit; Output Type: 3-state.
What package is S74F540N supplied in?
S74F540N is supplied in the DIP-20 package, through hole, rated 0°C ~ 70°C.
Can ZDI source S74F540N 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

S74F540N 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.

Need S74F540N?

ZD Integrated Circuits sources hard-to-find, obsolete, and excess components worldwide — pricing and availability, fast.

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