74AC153SC Equivalent & Substitute Parts

Part Overview

The 74AC153SC 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 74AC153SC provides dual 4-to-1 multiplexing functionality with single supply voltage operation, suitable for digital signal routing and selection applications in logic circuits.

Substiute Parts

74AC153SC

onsemiIn Stock: 73774AC153SC Datasheet

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CD74AC153M

Harris CorporationIn Stock: 1820CD74AC153M Datasheet

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CD74AC153M96

Texas InstrumentsIn Stock: 1210CD74AC153M96 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74AC153SC is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: Must be 2 x 4:1 multiplexer topology
• Package Type: Must be 16-SOIC surface mount package with 0.154" (3.90mm) width
• Output Current Rating: Must support 24mA output current (high and low)
• Voltage Supply Source: Must operate on single supply voltage
• Base Product Number: Must be 74AC153 series

The identified substitute parts CD74AC153M and CD74AC153M96 meet all these core substitution criteria. Both maintain identical circuit configuration, package specifications, and output current ratings. Differences in voltage supply range, operating temperature range, and product status are noted but do not prevent functional substitution when application requirements fall within the overlapping parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

CD74AC153M (Harris Corporation): This substitute maintains obsolete product status matching the original 74AC153SC. It provides extended operating temperature range (-55°C to 125°C) and lower minimum supply voltage (1.5V). However, it is classified as RoHS non-compliant, which may restrict use in applications requiring RoHS certification.

CD74AC153M96 (Texas Instruments): This substitute is the preferred selection for new designs and ongoing procurement. It maintains active product status, ensuring continued availability and manufacturer support. The CD74AC153M96 is ROHS3 compliant and carries REACH unaffected status, meeting modern regulatory requirements. It provides the same extended operating temperature range and lower minimum supply voltage as the Harris equivalent.

Selection between substitutes should prioritize CD74AC153M96 for applications requiring regulatory compliance and long-term supply assurance. The CD74AC153M may be considered only when RoHS non-compliance is acceptable and extended temperature operation is required.

Frequently Asked Questions (FAQ)

Q: Can CD74AC153M and CD74AC153M96 be used interchangeably with 74AC153SC?

A: Both substitutes are functionally equivalent within overlapping parameter ranges. The 74AC153SC operates at 2V to 6V supply voltage; both substitutes operate at 1.5V to 5.5V. Applications using supply voltages between 2V and 5.5V can use either substitute without modification. Applications requiring supply voltages above 5.5V or below 2V are not compatible with the substitutes.

Q: What is the difference between CD74AC153M and CD74AC153M96?

A: Both parts are electrically and mechanically identical. The primary differences are manufacturer (Harris vs. Texas Instruments), product status (Obsolete vs. Active), and compliance certifications. CD74AC153M96 is ROHS3 compliant and recommended for new designs.

Q: Are there packaging differences between these parts?

A: All three parts use identical 16-SOIC surface mount packages with 0.154" (3.90mm) width. They are pin-compatible and footprint-compatible on PCBs designed for the 74AC153SC.

Q: Which substitute should be selected for new product designs?

A: CD74AC153M96 (Texas Instruments) is the recommended choice for new designs due to active product status, ROHS3 compliance, and long-term availability assurance.

Q: What is the operating temperature overlap between the main part and substitutes?

A: The 74AC153SC operates from -40°C to 85°C. Both substitutes operate from -55°C to 125°C. The overlapping range is -40°C to 85°C, where all three parts are functionally equivalent.