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Request evaluation samplesonsemiIntegrated Circuits (ICs)Logic - Signal Switches, Multiplexers, Decodersonsemi Logic - Signal Switches, Multiplexers, Decoders
MC74LCX257DTR2G Logic - Signal Switches, Multiplexers, Decoders by onsemi
MC74LCX257DTR2G is a Logic - Signal Switches, Multiplexers, Decoders model from onsemi, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / Logic - Signal Switches, Multiplexers, Decoders product path. Known package information currently points to TSSOP-16 under the onsemi brand listing. MC74LCX257DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16. TrustCompo combines the available model, brand, hierarchy, and specification details around MC74LCX257DTR2G so buyers can move faster from review to quotation.
MC74LCX257DTR2G is currently obsolete from onsemi. Teams should confirm any remaining market availability, notice details, and alternate-part strategy before relying on this device.
Obsolete
RoHS
Datasheet
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Documentation support
Pre-shipment inspection review
Key specifications
Series
MC74LCX257
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
Logic - Signal Switches, Multiplexers, DecodersDescription
MC74LCX257DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16.
key Attributes
-
Datasheet
View MC74LCX257DTR2G DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for MC74LCX257DTR2G from onsemi in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Lifecycle buying advice
MC74LCX257DTR2G by onsemi should be treated as a risk-controlled procurement item. Confirm traceability, inspection scope, and alternate-part strategy before relying on supply.
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
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How to order this product
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1
Confirm part and quantity
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2
Send RFQ or sample request
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3
Align delivery, payment, and documentation
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Review quality controlsStructured product content
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Product overview
Overview
MC74LCX257DTR2G is part of the onsemi MC74LCX257 low-voltage CMOS quad 2:1 multiplexer family. onsemi PCN PD27554X lists this orderable logic product in a 2026 Product Discontinuance notice, so buyers should treat it as an EOL sustainment item and qualify replacement paths such as TI SN74LVC257APWR, Nexperia 74LVC257APW,118, or same-family 74LCX257MTCX where lifecycle scope permits.
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Popular Specs Surfaced First
Lifecycle / Sourcing
Publication Context
onsemi PD27554X replacement research wave
Lifecycle / Sourcing
Validation Required
Confirm datasheet pinout, package land pattern, logic thresholds, timing, and lifecycle status before production substitution.
Product Parameter
Function
Quad 2:1 multiplexer/data selector
Product Parameter
Part Number
MC74LCX257DTR2G
Product Attribute
Mounting Type
Surface Mount
Product Attribute
Manufacturer
onsemi
Publication Context
onsemi PD27554X replacement research wave
Validation Required
Confirm datasheet pinout, package land pattern, logic thresholds, timing, and lifecycle status before production substitution.
Function
Quad 2:1 multiplexer/data selector
Part Number
MC74LCX257DTR2G
Mounting Type
Surface Mount
Manufacturer
onsemi
Package / Case
TSSOP-16
Series
MC74LCX257
Output Type
3-state, non-inverting
Supply Voltage
2.3 V to 3.6 V class
Lifecycle Status
Product Discontinuance notice PD27554X
Notice documents
Product Notice Documents
PCNPrimary noticePD27554X
onsemi PD27554X Product Discontinuance of Logic Products
onsemi
Published: Jul 21, 2026Effective: Jul 21, 2026
onsemi PD27554X Product Discontinuance of Logic Products, public PCN index entry issued 2026-07-21.
Replacement path
MC74LCX257DTR2G replacement path and cross-reference options
MC74LCX257DTR2G from onsemi is now obsolete. Use the recommended products and related category path below to review alternate parts, compare ongoing availability, and move quickly into a controlled sourcing or replacement discussion.
Pin-to-pin optionTexas InstrumentsTSSOP-16
SN74LVC257APWR
SN74LVC257APWR is a P2P-review candidate for MC74LCX257DTR2G; confirm pinout, package, logic thresholds, timing, and lifecycle scope before production approval.
Replacement Type
Pin-to-pin option
Lifecycle status
Active
key Attributes
-
Available Quantity
12,000
Sourcing Signal
Review mapped alternatives for MC74LCX257DTR2G from Texas Instruments. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.
Pin-to-pin optionNexperiaTSSOP-16
74LVC257APW,118
74LVC257APW,118 is a P2P-review candidate for MC74LCX257DTR2G; confirm pinout, package, logic thresholds, timing, and lifecycle scope before production approval.
Replacement Type
Pin-to-pin option
Lifecycle status
Active
key Attributes
-
Available Quantity
12,000
Sourcing Signal
Review mapped alternatives for MC74LCX257DTR2G from Nexperia. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.
Pin-to-pin optiononsemiTSSOP-16
74LCX257MTCX
74LCX257MTCX is a P2P-review candidate for MC74LCX257DTR2G; confirm pinout, package, logic thresholds, timing, and lifecycle scope before production approval.
Replacement Type
Pin-to-pin option
Lifecycle status
Active
key Attributes
-
Available Quantity
12,000
Sourcing Signal
Review mapped alternatives for MC74LCX257DTR2G from onsemi. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.
FunctionalTexas InstrumentsSSOP-16
SN74LVC257ADBR
SN74LVC257ADBR is a functional replacement path for MC74LCX257DTR2G; package, rail, qualification, or threshold differences require engineering review.
Replacement Type
Functional
Lifecycle status
Active
key Attributes
-
Available Quantity
12,000
Sourcing Signal
Review mapped alternatives for MC74LCX257DTR2G from Texas Instruments. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.
Common questions
Product FAQ
Quick answers for buyers reviewing MC74LCX257DTR2G, stock, documentation, and sourcing steps.
What is MC74LCX257DTR2G?
MC74LCX257DTR2G is a Logic - Signal Switches, Multiplexers, Decoders component from onsemi. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for MC74LCX257DTR2G?
MC74LCX257DTR2G is listed with package reference TSSOP-16. The current product description is MC74LCX257DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16., and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is MC74LCX257DTR2G available in stock?
This page currently shows 20000 units in stock and 12000 units available for MC74LCX257DTR2G. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for MC74LCX257DTR2G?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for MC74LCX257DTR2G by onsemi. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for MC74LCX257DTR2G?
Yes. This page links to the datasheet for MC74LCX257DTR2G by onsemi, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify MC74LCX257DTR2G before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for MC74LCX257DTR2G before approving the order.
What does the Obsolete lifecycle status mean for MC74LCX257DTR2G?
MC74LCX257DTR2G is marked obsolete by onsemi, which usually means buyers should not plan around normal ongoing supply. Review the notice documents, remaining market options, and alternate-part strategy before relying on this device. This page currently lists 1 related notice documents when available.
Logic - Signal Switches, Multiplexers, Decoders
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