SN74F258DG4 Equivalent & Substitute Parts

Part Overview

The SN74F258DG4 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as discontinued at DiGi Electronics, making identification of equivalent and substitute parts essential for ongoing design support and procurement planning. The part operates with a single supply voltage between 4.5V and 5.5V and is suitable for applications requiring multiplexing functionality in the 74F logic family.

Substiute Parts

SN74F258DG4

Texas InstrumentsIn Stock: 755SN74F258DG4 Datasheet

Current PartRFQ

SN74F258D

Texas InstrumentsIn Stock: 1088SN74F258D Datasheet

MFR RecommendedRFQ

SN74F257D

Texas InstrumentsIn Stock: 2044SN74F257D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74F258DG4 is determined by strict equivalence across the following parameters:

• Circuit configuration: 4 x 2:1 multiplexer topology
• Package type: 16-SOIC surface mount
• Voltage supply range: 4.5V ~ 5.5V
• Output current specifications: 3mA high, 24mA low
• Operating temperature range: 0°C ~ 70°C
• RoHS and REACH compliance status

Parts meeting all these criteria are classified as direct substitutes. Variations in product status (active, last time buy, or discontinued) do not affect functional equivalence but impact procurement availability and lead time considerations.

Parameter Comparison

Engineering Selection Recommendations

The SN74F258D is the primary substitute for the SN74F258DG4, offering identical electrical and mechanical specifications with active product status. This part is recommended for new procurement due to its availability and ongoing manufacturer support.

The SN74F257D is a parametric equivalent substitute with identical functional parameters and package specifications. However, this part carries a Last Time Buy status, indicating limited future availability. Selection of this part should be based on specific inventory requirements or existing supply chain commitments.

Both substitute parts maintain full compliance with RoHS3 and REACH requirements, ensuring regulatory alignment with the original part specification.

Frequently Asked Questions (FAQ)

Q: Can SN74F258D be used as a direct replacement for SN74F258DG4?

A: Yes. The SN74F258D meets all electrical and mechanical specifications of the SN74F258DG4, including circuit configuration, package type, voltage supply range, output current ratings, and operating temperature range. The primary difference is product status; SN74F258D is active while SN74F258DG4 is discontinued.

Q: What is the difference between SN74F258D and SN74F257D?

A: Both parts are 4 x 2:1 multiplexers in 16-SOIC packages with identical electrical specifications. The base product numbers differ (74F258 versus 74F257), but they share the same circuit configuration, voltage supply, current ratings, and operating temperature range. SN74F257D is designated Last Time Buy, while SN74F258D is active.

Q: Are there packaging differences between these substitutes?

A: All three parts use the 16-SOIC (0.154", 3.90mm Width) surface mount package. No packaging variation exists among the main part and its substitutes.

Q: Do these parts require different PCB layouts or design modifications?

A: No. Identical package specifications ensure pin-for-pin compatibility and identical PCB footprints. No design modifications are required when substituting between these parts.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance across the entire substitute group.