74HCT151N,652 Equivalent & Substitute Parts

Part Overview

The 74HCT151N,652 is a logic multiplexer IC with a 1 x 8:1 circuit configuration in a 16-DIP package manufactured by NXP USA Inc. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and component procurement. The part operates on a single 4.5V to 5.5V supply and delivers 4mA output current at both high and low logic levels, suitable for standard TTL-compatible digital logic applications.

Substiute Parts

74HCT151N,652

NXP USA Inc.In Stock: 118274HCT151N,652 Datasheet

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CD74HCT151E

Texas InstrumentsIn Stock: 3335CD74HCT151E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HCT151N,652 is determined by strict equivalence across the following critical parameters:

• Circuit configuration: 1 x 8:1 multiplexer topology
• Package type: 16-DIP (0.300", 7.62mm) through-hole mounting
• Voltage supply range: 4.5V ~ 5.5V single supply operation
• Output current capability: 4mA at both high and low logic levels
• Logic family: 74HCT series compatibility
• Base product number: 74HCT151

The CD74HCT151E from Texas Instruments meets all these criteria and is classified as an active product, providing direct functional and pin-compatible replacement capability.

Parameter Comparison

Engineering Selection Recommendations

The CD74HCT151E is a direct functional equivalent to the 74HCT151N,652. Both components share identical electrical specifications, pin configurations, and package dimensions. The CD74HCT151E offers the additional advantage of active product status, ensuring long-term availability and supply chain continuity compared to the obsolete NXP part.

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The CD74HCT151E provides an extended lower operating temperature limit of -55°C compared to -40°C for the original part, offering broader environmental operating range without compromising upper temperature performance.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT151E directly replace the 74HCT151N,652 in existing designs?

A: Yes. Both components are pin-compatible 16-DIP packages with identical electrical characteristics, voltage supply requirements, and output current specifications. No circuit modifications are required for direct substitution.

Q: Are there any differences in operating temperature ranges?

A: The CD74HCT151E operates from -55°C to 125°C, while the 74HCT151N,652 operates from -40°C to 125°C. The substitute part provides extended low-temperature capability, making it suitable for a broader range of environmental conditions.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 74HCT151N,652 and CD74HCT151E are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the product status difference?

A: The 74HCT151N,652 is classified as obsolete, indicating discontinued manufacturing and limited availability. The CD74HCT151E maintains active product status, ensuring reliable long-term supply and manufacturer support.

Q: Are there packaging differences between these components?

A: Both components use identical 16-DIP (0.300", 7.62mm) through-hole packages. The CD74HCT151E is supplied in tube packaging, while the original part packaging specification is not detailed. This does not affect functional compatibility or board-level integration.