CD74ACT258M Equivalent & Substitute Parts

Part Overview

The CD74ACT258M 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 Last Time Buy, indicating limited availability and the necessity to identify equivalent alternatives for ongoing design requirements and production planning. The CD74ACT258M operates with a single supply voltage between 4.5V and 5.5V and supports output currents of 75mA for both high and low states, making it suitable for standard logic-level switching applications.

Substiute Parts

CD74ACT258M

Texas InstrumentsIn Stock: 6275CD74ACT258M Datasheet

Current PartRFQ

CD74ACT258M96

Texas InstrumentsIn Stock: 3338CD74ACT258M96 Datasheet

MFR RecommendedRFQ

CD74ACT257M

Harris CorporationIn Stock: 2314CD74ACT257M Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD74ACT258M is determined by strict equivalence across the following electrical and mechanical parameters:

• Circuit configuration: 4 x 2:1 multiplexer topology
• Package type: 16-SOIC surface mount form factor with 0.154" (3.90mm) width
• Voltage supply range: 4.5V ~ 5.5V single supply operation
• Output current capability: 75mA high and low states
• Operating temperature range: -55°C ~ 125°C
• Independent circuits: 1

Substitute parts must maintain identical electrical performance and physical compatibility to ensure direct replacement without circuit redesign or PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

CD74ACT258M96 is the primary substitute for the CD74ACT258M. Both parts are manufactured by Texas Instruments, maintain identical electrical specifications and package geometry, and carry ROHS3 compliance certification. The CD74ACT258M96 is currently in Active product status with available inventory, making it the preferred choice for new designs and production continuity. The difference in packaging format (Cut Tape & Digi-Reel versus Tube) does not affect electrical or mechanical compatibility.

CD74ACT257M is a parametric equivalent that meets all electrical and mechanical substitution criteria. However, this part is manufactured by Harris Corporation and carries Obsolete product status with RoHS non-compliance. Selection of CD74ACT257M should be limited to applications where existing inventory exists and regulatory compliance requirements do not mandate RoHS certification.

Frequently Asked Questions (FAQ)

Q: Can CD74ACT258M96 be used as a direct replacement for CD74ACT258M?

A: Yes. Both parts share identical electrical specifications, package dimensions, and pin configuration. The only difference is packaging format and product status. CD74ACT258M96 is Active and recommended for new applications.

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

A: Tube packaging supplies components in plastic tubes for manual handling and small-quantity assembly. Cut Tape & Digi-Reel packaging provides components on continuous tape for automated pick-and-place equipment. Both formats contain identical components with no electrical differences.

Q: Is CD74ACT257M compatible with CD74ACT258M?

A: CD74ACT257M meets all electrical and mechanical parameters for substitution. However, it is Obsolete and RoHS non-compliant. Use only if existing inventory is available and compliance requirements permit.

Q: Why is the CD74ACT258M marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing production. Customers must transition to alternative parts or secure remaining inventory. CD74ACT258M96 is the recommended active alternative.

Q: Are there any thermal or environmental differences between these parts?

A: All three parts operate across the identical temperature range of -55°C to 125°C. CD74ACT258M and CD74ACT258M96 both carry MSL 2 (1 Year) moisture sensitivity ratings. CD74ACT257M moisture sensitivity is not specified.