74AC153SCX Equivalent & Substitute Parts

Part Overview

The 74AC153SCX is a dual 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 production continuity. The 74AC153SCX performs high-speed data selection across multiple input channels, commonly used in digital signal routing and logic control applications.

Substiute Parts

74AC153SCX

onsemiIn Stock: 400074AC153SCX Datasheet

Current PartRFQ

MC74AC253DR2G

onsemiIn Stock: 3300MC74AC253DR2G Datasheet

Parametric EquivalentRFQ

CD74AC153M96

Texas InstrumentsIn Stock: 1210CD74AC153M96 Datasheet

DirectRFQ

CD74AC153M

Harris CorporationIn Stock: 1820CD74AC153M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74AC153SCX is determined by the following critical parameters:

• Circuit configuration: 2 x 4:1 multiplexer topology
• Package type: 16-SOIC form factor with identical pin pitch and dimensions
• Output current capability: 24mA minimum for both high and low states
• Supply voltage compatibility: Overlapping operational voltage ranges
• Mounting type: Surface mount technology

Substitute parts must maintain functional equivalence across these parameters to ensure direct replacement without circuit redesign. Parts are grouped by substitution type based on parameter alignment and product status.

Parameter Comparison

Engineering Selection Recommendations

MC74AC253DR2G is the primary parametric equivalent substitute. This onsemi part maintains identical electrical specifications within the 2V to 6V supply range and -40°C to 85°C operating window. The part carries active product status and ROHS3 compliance, supporting long-term design continuity. Tape & Reel packaging accommodates high-volume production requirements.

CD74AC153M96 from Texas Instruments functions as a direct manufacturer alternative. This part extends the supply voltage range to 1.5V and operating temperature to -55°C to 125°C, providing broader environmental tolerance. ROHS3 compliance and active status ensure regulatory alignment and availability. Cut Tape & Digi-Reel® packaging supports both prototype and production workflows.

CD74AC153M from Harris Corporation provides functional equivalence but carries obsolete product status and RoHS non-compliance. This part is suitable only for legacy system maintenance where regulatory requirements do not apply.

Frequently Asked Questions (FAQ)

Q: Can MC74AC253DR2G directly replace 74AC153SCX without circuit modification?

A: Yes. Both parts share identical circuit configuration (2 x 4:1 multiplexer), output current ratings (24mA), supply voltage range (2V ~ 6V), operating temperature range (-40°C ~ 85°C), and 16-SOIC package dimensions. Pin-for-pin compatibility is maintained.

Q: What is the difference between CD74AC153M96 and the main part?

A: CD74AC153M96 extends the supply voltage range to 1.5V minimum and operating temperature to -55°C to 125°C. These broader specifications do not prevent substitution; the part operates within the original design envelope while offering enhanced environmental tolerance.

Q: Why is MC74AC253DR2G preferred over CD74AC153M?

A: MC74AC253DR2G maintains identical electrical specifications to the original part and carries active product status with ROHS3 compliance. CD74AC153M is obsolete and RoHS non-compliant, limiting its use to legacy applications only.

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format (Tube, Tape & Reel, Cut Tape) affects handling, storage, and production workflow but does not alter electrical performance or pin compatibility. Selection depends on manufacturing process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: MC74AC253DR2G and CD74AC153M96 are ROHS3 compliant. CD74AC153M is RoHS non-compliant. Compliance requirements should guide selection for regulated applications.