74VHC153M Equivalent & Substitute Parts

Part Overview

The 74VHC153M 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 continuity. The 74VHC153M serves applications requiring dual 4-to-1 data selection with single supply voltage operation across industrial temperature ranges.

Substiute Parts

74VHC153M

onsemiIn Stock: 81674VHC153M Datasheet

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CD74AC153M

Harris CorporationIn Stock: 1820CD74AC153M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC153M is determined by the following critical parameters:

• Functional equivalence: Identical multiplexer configuration (2 x 4:1)
• Package compatibility: 16-SOIC surface mount package with matching pinout
• Electrical compatibility: Single supply voltage operation with overlapping supply voltage range
• Output drive capability: Current sourcing and sinking capacity suitable for the application
• Temperature range: Operating temperature envelope that meets or exceeds the original specification

The CD74AC153M qualifies as a functional equivalent based on matching circuit configuration, identical package type, and compatible single supply voltage operation. Both devices share the same base product number series designation and pinout architecture.

Parameter Comparison

Engineering Selection Recommendations

CD74AC153M as a substitute for 74VHC153M:

The CD74AC153M provides functional equivalence with enhanced electrical performance characteristics. The substitute device delivers higher output drive current (24mA versus 8mA), enabling operation with higher capacitive loads and longer signal paths. The CD74AC153M supports an extended supply voltage range (1.5V minimum versus 2V minimum) and broader operating temperature range (-55°C to 125°C versus -40°C to 85°C), accommodating more demanding environmental conditions.

Both devices are classified as obsolete and share identical export control classification (EAR99). The CD74AC153M is non-compliant with RoHS directives, consistent with the obsolete product status of both components. Pinout and functional compatibility are maintained across both devices, supporting direct substitution in existing designs without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the CD74AC153M directly replace the 74VHC153M in existing designs?

A: Yes. Both devices feature identical 2 x 4:1 multiplexer configuration, 16-SOIC package geometry, and single supply voltage operation. Pinout compatibility is maintained, enabling direct substitution without circuit redesign.

Q: What are the key differences between these devices?

A: The CD74AC153M provides higher output drive current (24mA versus 8mA), lower minimum supply voltage (1.5V versus 2V), and extended operating temperature range (-55°C to 125°C versus -40°C to 85°C). These differences represent performance enhancements suitable for applications requiring greater drive capability or wider environmental operating conditions.

Q: Are there any compliance or regulatory considerations?

A: Both devices are classified as obsolete and share identical export control designation (EAR99). The CD74AC153M is RoHS non-compliant. Compliance requirements for your specific application should be evaluated independently.

Q: Does the higher output current of the CD74AC153M affect circuit design?

A: The increased output drive capability of the CD74AC153M (24mA) is backward compatible with designs specified for the 74VHC153M (8mA). Applications requiring the lower current specification of the original device will operate correctly with the substitute. Applications benefiting from higher drive current can leverage this enhanced capability without modification.

Q: What packaging options are available?

A: The 74VHC153M is supplied in standard packaging, while the CD74AC153M is supplied in tube packaging. Both devices use identical 16-SOIC surface mount package geometry suitable for automated assembly processes.