74ACTQ153SCX Equivalent & Substitute Parts

Part Overview

The 74ACTQ153SCX is a 2 x 4:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates with a single 4.5V to 5.5V supply and delivers 24mA output current capability in both high and low states, suitable for standard TTL-compatible logic applications requiring multiplexing functionality.

Substiute Parts

74ACTQ153SCX

onsemiIn Stock: 355574ACTQ153SCX Datasheet

Current PartRFQ

MC74ACT153DR2G

onsemiIn Stock: 1004MC74ACT153DR2G Datasheet

Parametric EquivalentRFQ

MC74ACT253DR2G

onsemiIn Stock: 5144MC74ACT253DR2G Datasheet

Parametric EquivalentRFQ

CD74ACT153M

Harris CorporationIn Stock: 7805CD74ACT153M Datasheet

SimilarRFQ

CD74ACT153M96

Texas InstrumentsIn Stock: 6127CD74ACT153M96 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACTQ153SCX is determined by strict equivalence across the following parameters: multiplexer type (2 x 4:1 configuration), output current capability (24mA high and low), single supply voltage range (4.5V ~ 5.5V), 16-SOIC package geometry, and surface mount mounting type. Parts are grouped into two categories based on product status and compliance certifications.

Parametric Equivalents maintain identical electrical specifications and package form factor with active product status and modern compliance certifications (ROHS3). These parts are direct functional replacements.

Similar Parts share the same core multiplexer function and package but may have extended operating temperature ranges or obsolete status. These parts are functionally compatible but require verification of specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents):

MC74ACT153DR2G and MC74ACT253DR2G are the preferred substitutes. Both are manufactured by onsemi with active product status and ROHS3 compliance. These parts maintain identical electrical specifications and operating temperature range (-40°C ~ 85°C) as the 74ACTQ153SCX. MC74ACT153DR2G is available in Tape & Reel packaging with 975 units in stock, while MC74ACT253DR2G offers higher inventory (5100 units) in the same packaging format.

Secondary Substitutes (Similar Parts):

CD74ACT153M96 (Texas Instruments) is an active product with ROHS3 compliance and extended operating temperature range (-55°C ~ 125°C). This part is suitable for applications requiring wider temperature operation. CD74ACT153M (Harris Corporation) shares identical electrical specifications but is obsolete and RoHS non-compliant, making it suitable only for legacy system maintenance where compliance is not a requirement.

Selection should prioritize active products with current compliance certifications for new designs. Extended temperature range variants are appropriate only when application requirements exceed the standard -40°C ~ 85°C range.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT153DR2G directly replace 74ACTQ153SCX in existing designs?

A: Yes. MC74ACT153DR2G is a parametric equivalent with identical multiplexer configuration (2 x 4:1), output current (24mA), supply voltage (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 16-SOIC package. No circuit modifications are required.

Q: What is the difference between MC74ACT153DR2G and MC74ACT253DR2G?

A: Both are 2 x 4:1 multiplexers with identical electrical specifications and package form factor. The primary difference is base product number designation (74ACT153 vs 74ACT253). Both are functionally equivalent for this application. MC74ACT253DR2G has higher inventory availability (5100 units vs 975 units).

Q: Why do CD74ACT153M and CD74ACT153M96 have different operating temperature ranges?

A: CD74ACT153M (Harris Corporation) operates -55°C ~ 125°C, while CD74ACT153M96 (Texas Instruments) also operates -55°C ~ 125°C. Both offer extended temperature capability compared to the original 74ACTQ153SCX (-40°C ~ 85°C). These parts are suitable for applications requiring operation beyond standard industrial temperature limits.

Q: Is packaging format important when selecting a substitute?

A: Yes. The 74ACTQ153SCX uses standard 16-SOIC surface mount packaging. All listed substitutes maintain this package geometry (0.154", 3.90mm width). However, packaging format differs: MC74ACT153DR2G and MC74ACT253DR2G are supplied in Tape & Reel format, CD74ACT153M in Tube format, and CD74ACT153M96 in Cut Tape & Digi-Reel format. Verify compatibility with your procurement and assembly processes.

Q: Are there compliance differences between substitute options?

A: Yes. MC74ACT153DR2G and MC74ACT253DR2G are ROHS3 compliant. CD74ACT153M96 is ROHS3 compliant. CD74ACT153M is RoHS non-compliant. For applications requiring environmental compliance certifications, select ROHS3 compliant alternatives.

Q: Which substitute should I choose for a new design?

A: MC74ACT153DR2G or MC74ACT253DR2G are recommended. Both are active products with ROHS3 compliance and current manufacturing support. MC74ACT253DR2G offers higher inventory availability. If extended temperature operation is required (-55°C ~ 125°C), select CD74ACT153M96 (Texas Instruments, active, ROHS3 compliant).