74ACT153SCX Equivalent & Substitute Parts

Part Overview

The 74ACT153SCX 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, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ACT153 series provides dual 4-to-1 multiplexing functionality with single supply operation across the 4.5V to 5.5V range, suitable for digital logic applications requiring channel selection and data routing.

Key Parameters

Parameter	Specification
Type	Multiplexer
Circuit Configuration	2 x 4:1
Independent Circuits	1
Output Current (High/Low)	24mA / 24mA
Voltage Supply	Single Supply, 4.5V to 5.5V
Operating Temperature Range	-40°C to 85°C
Package Type	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Series	74ACT

Substitute Part Grouping Explanation

Substitution of the 74ACT153SCX is determined by strict equivalence in the following parameters: circuit configuration (2 x 4:1 multiplexer), output current capability (24mA high and low), single supply voltage operation (4.5V to 5.5V), package type (16-SOIC), and mounting method (surface mount). All substitute parts listed maintain these core electrical and mechanical specifications. Differences in product status, packaging format (tape & reel, tube, cut tape), operating temperature range, and manufacturer compliance certifications do not affect functional interchangeability within the specified electrical operating window.

Parameter Comparison

Part Number	Manufacturer	Product Status	Circuit	Output Current (mA)	Voltage Supply (V)	Operating Temp (°C)	Package	Packaging Format	RoHS Status
74ACT153SCX	onsemi	Obsolete	2 x 4:1	24 / 24	4.5 to 5.5	-40 to 85	16-SOIC	Standard	Not specified
MC74ACT153DR2G	onsemi	Active	2 x 4:1	24 / 24	4.5 to 5.5	-40 to 85	16-SOIC	Tape & Reel	ROHS3 Compliant
MC74ACT253DR2G	onsemi	Active	2 x 4:1	24 / 24	4.5 to 5.5	-40 to 85	16-SOIC	Tape & Reel	ROHS3 Compliant
CD74ACT153M	Harris Corporation	Obsolete	2 x 4:1	24 / 24	4.5 to 5.5	-55 to 125	16-SOIC	Tube	RoHS non-compliant
CD74ACT153M96	Texas Instruments	Active	2 x 4:1	24 / 24	4.5 to 5.5	-55 to 125	16-SOIC	Cut Tape & Digi-Reel	ROHS3 Compliant
MC74ACT153DG	onsemi	Active	2 x 4:1	24 / 24	4.5 to 5.5	-40 to 85	16-SOIC	Tube	ROHS3 Compliant

Engineering Selection Recommendations

MC74ACT153DR2G is the primary direct substitute, offering identical electrical specifications to the 74ACT153SCX with active product status and ROHS3 compliance. This part is available in tape & reel packaging suitable for automated assembly processes.

MC74ACT153DG provides an alternative from the same manufacturer with active status and ROHS3 compliance, differentiated by tube packaging format for manual handling applications.

MC74ACT253DR2G is a parametric equivalent with identical electrical performance and active status. The base product number differs (74ACT253 versus 74ACT153), but functional equivalence is maintained within the specified electrical operating parameters.

CD74ACT153M96 from Texas Instruments offers active product status and ROHS3 compliance with an extended operating temperature range (-55°C to 125°C), providing additional thermal margin for demanding applications. Cut tape and Digi-Reel packaging supports both manual and automated assembly.

CD74ACT153M from Harris Corporation maintains electrical equivalence but carries obsolete status and RoHS non-compliance, limiting suitability for new designs requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT153DR2G directly replace 74ACT153SCX in existing designs? A: Yes. Both parts maintain identical electrical specifications: 2 x 4:1 multiplexer configuration, 24mA output current, 4.5V to 5.5V single supply operation, and 16-SOIC package. The primary difference is product status (active versus obsolete) and packaging format (tape & reel versus standard).

Q: What is the difference between MC74ACT153DR2G and MC74ACT253DR2G? A: Both parts are electrically equivalent with identical output current, voltage supply, operating temperature, and package specifications. The base product numbers differ (74ACT153 versus 74ACT253), but functional performance within the specified parameters is equivalent.

Q: Should I use CD74ACT153M96 for applications requiring extended temperature operation? A: CD74ACT153M96 supports -55°C to 125°C operation compared to -40°C to 85°C for the 74ACT153SCX. If your application requires this extended range, CD74ACT153M96 is suitable. Otherwise, the standard temperature range parts are appropriate.

Q: Are all substitute parts ROHS3 compliant? A: No. CD74ACT153M from Harris Corporation is RoHS non-compliant. All other listed substitutes (MC74ACT153DR2G, MC74ACT253DR2G, CD74ACT153M96, MC74ACT153DG) are ROHS3 compliant.

Q: What packaging formats are available for these substitutes? A: MC74ACT153DR2G and MC74ACT253DR2G are supplied in tape & reel format for automated assembly. MC74ACT153DG is supplied in tube format for manual handling. CD74ACT153M96 is available in cut tape and Digi-Reel format supporting both assembly methods.

Q: Is the 74ACT153SCX still in production? A: No. The 74ACT153SCX is classified as obsolete. Active alternatives include MC74ACT153DR2G, MC74ACT253DR2G, CD74ACT153M96, and MC74ACT153DG.

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