SN74HC258PWR Equivalent & Substitute Parts

Part Overview

The SN74HC258PWR is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as an active product and is currently in stock with 2,637 units available. The SN74HC258PWR operates across a supply voltage range of 2V to 6V and maintains consistent output current specifications of 7.8mA for both high and low states. Finding equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design flexibility demands component options from the same functional family.

Substiute Parts

SN74HC258PWR

Texas InstrumentsIn Stock: 2709SN74HC258PWR Datasheet

Current PartRFQ

SN74HC157APWR

Texas InstrumentsIn Stock: 2143SN74HC157APWR Datasheet

Parametric EquivalentRFQ

SN74HC157PWR

Texas InstrumentsIn Stock: 2066SN74HC157PWR Datasheet

Parametric EquivalentRFQ

SN74HC157PWT

Texas InstrumentsIn Stock: 2043SN74HC157PWT Datasheet

Parametric EquivalentRFQ

SN74HC158PWR

Texas InstrumentsIn Stock: 4065SN74HC158PWR Datasheet

Parametric EquivalentRFQ

SN74HC158PWT

Texas InstrumentsIn Stock: 947SN74HC158PWT Datasheet

Parametric EquivalentRFQ

SN74HC257PWR

Texas InstrumentsIn Stock: 1951SN74HC257PWR Datasheet

Parametric EquivalentRFQ

SN74HC258PWT

Texas InstrumentsIn Stock: 934SN74HC258PWT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74HC258PWR is determined by strict adherence to the following electrical and mechanical parameters:

Circuit configuration must remain 4 x 2:1 multiplexer topology with 1 independent circuit. Output current specifications must match at 7.8mA for both high and low states. Supply voltage range must be 2V to 6V with single supply operation. Operating temperature range must span -40°C to 85°C. Package type must be 16-TSSOP with 0.173" width and 4.40mm dimensions. All substitute parts must maintain Surface Mount mounting type and belong to the 74HC logic series. Compliance certifications including ROHS3, MSL Level 1, and REACH Unaffected status must be preserved.

Substitute parts are grouped into two categories: parametric equivalents with identical electrical and mechanical specifications but different base product numbers within the 74HC family (SN74HC157APWR, SN74HC157PWR, SN74HC157PWT, SN74HC158PWR, SN74HC158PWT, SN74HC257PWR, SN74HC258PWT), and packaging variants that maintain all electrical parameters while offering alternative distribution formats.

Parameter Comparison

Engineering Selection Recommendations

For active production designs, prioritize parts with Active product status: SN74HC258PWR, SN74HC157APWR, SN74HC157PWR, SN74HC158PWR, and SN74HC257PWR. All listed substitutes maintain ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, ensuring regulatory alignment across the entire substitute family.

When packaging format flexibility is required, SN74HC157PWR and SN74HC257PWR offer Cut Tape and Digi-Reel distribution options as alternatives to standard Tape & Reel formats. Parts marked as Discontinued at DiGi Electronics (SN74HC157PWT, SN74HC158PWT, SN74HC258PWT) remain available in inventory but should be evaluated for long-term supply chain stability in new designs.

SN74HC158PWR demonstrates the highest current inventory level at 4,028 units, providing supply assurance for high-volume applications. All substitute parts share identical electrical performance within the 74HC logic series and maintain the same 16-TSSOP package footprint, enabling direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can SN74HC157PWR replace SN74HC258PWR in my circuit?

A: Yes. Both parts are 4 x 2:1 multiplexers with identical output current (7.8mA high/low), supply voltage range (2V to 6V), operating temperature (-40°C to 85°C), and 16-TSSOP package dimensions. The primary difference is the base product number within the 74HC family. Electrical substitution is valid; verify your schematic documentation for any design-specific requirements.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Both packaging formats contain the same 16-TSSOP component. Tape & Reel (TR) provides continuous reel format for automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel offers the same component in cut tape format or alternative reel configuration. Selection depends on your assembly equipment and procurement workflow; electrical performance is identical.

Q: Are discontinued parts suitable for new designs?

A: Parts marked Discontinued at DiGi Electronics (SN74HC157PWT, SN74HC158PWT, SN74HC258PWT) remain available in current inventory but lack active product status. For new designs requiring long-term component availability, select from Active status parts: SN74HC258PWR, SN74HC157APWR, SN74HC157PWR, SN74HC158PWR, or SN74HC257PWR.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All listed substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), and REACH Unaffected status. Regulatory and environmental certifications are consistent across the entire substitute family.

Q: Can I use SN74HC158PWR as a substitute for SN74HC258PWR?

A: Yes. Both parts share identical electrical specifications: 4 x 2:1 multiplexer configuration, 7.8mA output current, 2V to 6V supply voltage, -40°C to 85°C operating range, and 16-TSSOP package. The base product number differs (74HC158 versus 74HC258), but functional and mechanical compatibility is maintained.

Q: Which substitute part has the best inventory availability?

A: SN74HC158PWR offers the highest inventory level at 4,028 units. For applications requiring immediate availability and long-term supply assurance, this part provides the strongest stock position among all listed substitutes.