
MC74LCX258DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16.
MC74LCX258DTG is a Logic - Signal Switches, Multiplexers, Decoders from onsemi in TSSOP-16 packaging. It is commonly reviewed for MC74LCX258DTG is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16. This page lists current TrustCompo stock, tier pricing, package data, datasheet access, compliance attributes, Hong Kong warehouse shipping options, payment confirmation, and RFQ options for buyers verifying this exact ordering code.

MC74LCX258DTG
TCE000101431
TSSOP-16
MC74LCX258
1
MC74LCX258DTG is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16.
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RFQ checklist
Confirm the core buying details for MC74LCX258DTG before RFQ, PO release, and shipment planning.
Use the exact part number, manufacturer, package, and approval constraints in the RFQ.
Verify live availability, MOQ, lead time, final unit price, and tax terms before PO release.
Confirm datasheet, CoC, traceability, lifecycle notes, and inspection scope when required.
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Before PO release
Product overview
Review the sourcing context for MC74LCX258DTG from onsemi, including product identity, application fit, package notes, and purchasing considerations.
MC74LCX258DTG is part of the onsemi MC74LCX258 low-voltage CMOS quad 2:1 inverting multiplexer family. onsemi PCN PD27554X lists this orderable product in a 2026 Product Discontinuance notice. Replacement review should prioritize SN74LVC258APWR for inverting-output TSSOP designs, while non-inverting 257-family devices require logic polarity review.
Technical parameters
Compare grouped MC74LCX258DTG parameters from onsemi, including package, series, key attributes, and technical values used for engineering and sourcing review.
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 Attribute
Mounting Type
Surface Mount
Product Attribute
Manufacturer
onsemi
Product Attribute
Package / Case
TSSOP-16
Product Attribute
Supply Voltage
2.3 V to 3.6 V class
| Parameter | Value |
|---|---|
Publication Context Indicates the environment or document type where the component's specifications are presented, such as datasheet, catalog, or press release. Helps engineers verify the source and relevance of the data. Always cross-check with the official datasheet for critical parameters. | onsemi PD27554X replacement research wave |
Validation Required Indicates whether the product listing must undergo additional verification before it can be ordered. Buyers should check this flag to ensure the component data is confirmed by the supplier or manufacturer. If set, review the datasheet and confirm specifications with the seller before purchasing. | Confirm datasheet pinout, package land pattern, logic thresholds, timing, and lifecycle status before production substitution. |
| Parameter | Value |
|---|---|
Mounting Type Specifies how the component is attached to the PCB, such as through-hole or surface mount. This affects assembly processes, thermal performance, and mechanical strength. Buyers should verify compatibility with their manufacturing capabilities and design requirements. | Surface Mount |
Manufacturer Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts. | onsemi |
Package / Case Physical package or case type of the component, defining its dimensions, mounting style, and thermal characteristics. Common types include SMD, through-hole, BGA, and QFN. Choose the package that fits your PCB layout and assembly process. Verify the exact package code in the datasheet for footprint compatibility. | TSSOP-16 |
Supply Voltage Specifies the nominal operating voltage that must be applied to the component for proper function. Verify this value against your system's power rail and the datasheet's absolute maximum ratings to ensure reliable operation and avoid damage. | 2.3 V to 3.6 V class |
Lifecycle Status Current stage in the product's lifecycle, such as Active, Obsolete, or End of Life. This indicates availability and long-term supply risk. Check this before designing in a part to ensure it will be available for your product's production lifetime. | Product Discontinuance notice PD27554X |
Series Indicates the product series or family, grouping components with similar design and specifications. Helps identify compatible parts and compare within a product line. Verify the series against the datasheet to ensure correct application. | MC74LCX258 |
Output Type Specifies the electrical form of the output signal, such as digital, analog, or open collector. This determines how the component interfaces with your circuit. Verify the output type against your system requirements and the datasheet to ensure proper signal compatibility and avoid logic level mismatches. | 3-state, inverting |
| Parameter | Value |
|---|---|
Function Specifies the logical or operational function of the component, such as switching, amplification, or regulation. This attribute helps identify the device's role in a circuit. Verify the function against the datasheet to ensure it matches your application requirements. | Quad 2:1 multiplexer/data selector |
Part Number Manufacturer-assigned identifier for the component. Use it to locate datasheets, verify specifications, and ensure compatibility with your design. Always cross-check the part number against the manufacturer's official documentation to avoid counterfeit or obsolete parts. | MC74LCX258DTG |
Datasheet preview
Preview the MC74LCX258DTG datasheet from onsemi to check package, electrical characteristics, application notes, and document evidence before RFQ.
Notice documents
Replacement path
MC74LCX258DTG 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.
Related sourcing options
Explore related Logic - Signal Switches, Multiplexers, Decoders products to compare fit, stock status, datasheets, and sourcing options.

MC74LCX258DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16.

MC74VHCT257ADTR2G is an onsemi VHCT quad 2:1 multiplexer with non-inverting 3-state outputs in TSSOP-16.

MC74LCX257DTR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16.

MC74LCX257DR2G is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in SOIC-16.

onsemi 74LCX257MTCX is a same-family quad 2:1 multiplexer candidate in TSSOP-16.

MC74LCX257DTG is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16.
Common questions
Targeted answers for buyers verifying the exact MC74LCX258DTG ordering code, packaging, stock, datasheet, and replacement path.
MC74LCX258DTG is the exact ordering code listed for a Logic - Signal Switches, Multiplexers, Decoders component from onsemi. The current package reference is TSSOP-16, with listed context including MC74LCX258DTG is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16.. Buyers should use the full code when requesting stock, price, datasheet, or compliance confirmation.
Treat MC74LCX258DTG as the full ordering code during RFQ and engineering review. Confirm the listed TSSOP-16 package, manufacturer documentation from onsemi, datasheet ordering table, reel or packing details, and any customer approval constraints before substitution or PO release.
MC74LCX258DTG is currently listed with package reference TSSOP-16 from onsemi. Buyers should confirm the manufacturer package drawing, footprint, pinout, tape-and-reel details, and receiving requirements before approval.
MC74LCX258DTG is currently marked with stock availability on this page. Before ordering, confirm the package (TSSOP-16), listed stock (20000), available quantity (12000), required quantity, lead time, final price, compliance needs, and exact ordering code match through RFQ.
Use the MC74LCX258DTG cross-reference page to compare mapped alternatives, replacement type, package, lifecycle, stock, and pin-to-pin replacement notes before RFQ or engineering approval.
MC74LCX258DTG 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.