74ACT253SC Equivalent & Substitute Parts

Part Overview

The 74ACT253SC is a 2 x 4:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-SOIC surface mount package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. The 74ACT253 series provides dual 4-to-1 multiplexing functionality suitable for digital signal routing applications requiring single supply operation within the 4.5V to 5.5V range.

Substiute Parts

74ACT253SC

onsemiIn Stock: 372974ACT253SC Datasheet

Current PartRFQ

MC74ACT253DR2G

onsemiIn Stock: 5144MC74ACT253DR2G Datasheet

DirectRFQ

CD74ACT253M

Harris CorporationIn Stock: 3070CD74ACT253M Datasheet

SimilarRFQ

CD74ACT253M96

Texas InstrumentsIn Stock: 5650CD74ACT253M96 Datasheet

SimilarRFQ

MC74ACT153DG

onsemiIn Stock: 831MC74ACT153DG Datasheet

Parametric EquivalentRFQ

MC74ACT253DG

onsemiIn Stock: 811MC74ACT253DG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT253SC is determined by the following criteria:

Direct Substitutes maintain identical electrical specifications: 24mA output current, -40°C to 85°C operating temperature range, and 4.5V to 5.5V supply voltage. These parts are functionally interchangeable at the circuit level.

Similar Substitutes provide equivalent multiplexing functionality within the same 16-SOIC package but with enhanced electrical performance: 75mA output current and extended operating temperature range (-55°C to 125°C). These parts are electrically compatible but offer higher current capability and wider temperature operation.

Parametric Equivalents maintain the core 2 x 4:1 multiplexing function and identical electrical specifications but may differ in base product designation or packaging format. These parts satisfy functional requirements while accommodating procurement or inventory constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74ACT253DR2G

This part is the direct electrical equivalent of the 74ACT253SC with identical output current (24mA) and operating temperature range (-40°C to 85°C). The MC74ACT253DR2G carries active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The Tape & Reel packaging format supports automated assembly processes.

Secondary Recommendation: CD74ACT253M96

This Texas Instruments part provides enhanced electrical performance with 75mA output current and extended operating temperature range (-55°C to 125°C). The CD74ACT253M96 is active and ROHS3 compliant. Selection of this part is appropriate when circuit design permits higher current capability or when extended temperature operation is required.

Alternative Recommendation: MC74ACT153DG

This onsemi part maintains identical electrical specifications to the 74ACT253SC and carries active product status with ROHS3 compliance. The MC74ACT153DG differs in base product designation (74ACT153 versus 74ACT253) but provides equivalent 2 x 4:1 multiplexing functionality within the same 16-SOIC package.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT253DR2G directly replace 74ACT253SC in existing designs?

A: Yes. The MC74ACT253DR2G provides identical electrical specifications: 24mA output current, -40°C to 85°C operating temperature, and 4.5V to 5.5V supply voltage. The 16-SOIC package dimensions are identical. The primary difference is packaging format (Tape & Reel versus Tube) and active product status.

Q: What is the difference between CD74ACT253M96 and MC74ACT253DR2G?

A: Both parts provide 2 x 4:1 multiplexing in 16-SOIC packages. The CD74ACT253M96 offers higher output current (75mA versus 24mA) and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C). Selection depends on circuit requirements for current capability and temperature operation.

Q: Is MC74ACT153DG functionally equivalent to 74ACT253SC?

A: Yes. The MC74ACT153DG provides identical electrical performance and 2 x 4:1 multiplexing functionality within the same 16-SOIC package. The base product designation differs (74ACT153 versus 74ACT253), but functional compatibility is maintained.

Q: Why is product status important for substitution?

A: Active products ensure continued manufacturing and long-term availability. Obsolete parts may face supply constraints or discontinuation. When substituting an obsolete part, selection of an active equivalent reduces procurement risk and supports design longevity.

Q: Does packaging format affect electrical compatibility?

A: No. Tape & Reel and Tube packaging formats contain identical die and electrical specifications. Packaging selection is determined by assembly process requirements and inventory management practices, not circuit functionality.

Q: Are all substitute parts ROHS3 compliant?

A: The active substitute parts (MC74ACT253DR2G, CD74ACT253M96, MC74ACT153DG) are ROHS3 compliant. The obsolete CD74ACT253M is RoHS non-compliant. Regulatory requirements may necessitate selection of compliant alternatives.