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SN74ALS540DW — SOIC-W (18–28) package (representative)
SOIC-W (18–28)
Representative of package type
Texas Instruments

SN74ALS540DW

Buffer/Driver · SOIC-20 · Logic
Data last refreshed Jul 28, 2026
Manufacturer
Texas Instruments
Mfr Part #
SN74ALS540DW
Series
74ALS
Category
Buffer/Driver
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Logic FamilyALS
Voltage Range4.5 V ~ 5.5 V
Output Current24 mA
Physical & Thermal
Package / CaseSOIC-20
Mounting TypeSurface Mount
Series74ALS
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryBuffer/Driver
TypeLogic

Octal inverting buffer/driver with 3-state outputs, 4.5-5.5 V

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Part Activity

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Engineering FAQ

What are the key specifications of SN74ALS540DW?
Logic Family: ALS; Voltage Range: 4.5 V ~ 5.5 V; Output Current: 24 mA.
What package is SN74ALS540DW supplied in?
SN74ALS540DW is supplied in the SOIC-20 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source SN74ALS540DW 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

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