74HC151N,652 Equivalent & Substitute Parts

Part Overview

The 74HC151N,652 is a 1 x 8:1 multiplexer logic integrated circuit manufactured by NXP Semiconductors in a 16-DIP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74HC151 series multiplexer selects one of eight input lines and routes it to a single output, functioning as a fundamental logic selection component in digital systems.

Substiute Parts

74HC151N,652

NXP SemiconductorsIn Stock: 104274HC151N,652 Datasheet

Current PartRFQ

CD74HC151E

Harris CorporationIn Stock: 1835CD74HC151E Datasheet

DirectRFQ

SN74HC151N

Texas InstrumentsIn Stock: 13532SN74HC151N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74HC151N,652 is determined by the following critical parameters:

• Circuit Configuration: Must be 1 x 8:1 multiplexer
• Package Type: Must be 16-DIP (0.300", 7.62mm) for mechanical compatibility
• Mounting Type: Must be Through Hole
• Voltage Supply Range: Must support 2V ~ 6V operation
• Electrical Characteristics: Output current ratings and operating temperature ranges define functional equivalence

Two substitute parts meet these criteria: the CD74HC151E (Harris Corporation) and the SN74HC151N (Texas Instruments). Both maintain the same circuit configuration, package footprint, and core electrical specifications required for direct substitution in existing designs.

Parameter Comparison

Engineering Selection Recommendations

CD74HC151E (Harris Corporation): This substitute maintains identical output current specifications (5.2mA) and voltage supply range. However, it carries RoHS non-compliant status, which may restrict use in applications requiring environmental compliance. The extended operating temperature range (-55°C ~ 125°C) provides broader thermal coverage than the original part. Product status is obsolete.

SN74HC151N (Texas Instruments): This substitute is the preferred choice for new designs and ongoing procurement. It maintains ROHS3 compliance and active product status, ensuring long-term availability and support. Output current is rated at 7.8mA, providing higher drive capability than the original specification. Operating temperature range is -40°C ~ 85°C, which covers standard industrial applications. This part is suitable for direct substitution in designs where the upper temperature limit of 85°C is acceptable.

For applications requiring the full -40°C ~ 125°C temperature range, the CD74HC151E provides extended thermal operation, though compliance considerations must be evaluated. For standard applications with RoHS compliance requirements, the SN74HC151N is the recommended substitute.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC151E and SN74HC151N be used interchangeably with the 74HC151N,652?

A: Both parts are functionally equivalent for the 1 x 8:1 multiplexer circuit configuration and share the same 16-DIP package footprint. The SN74HC151N is preferred for new designs due to active product status and ROHS3 compliance. The CD74HC151E is suitable where extended temperature operation (-55°C) is required, with the caveat that RoHS compliance must be verified for your application.

Q: What is the difference in output current between these parts?

A: The 74HC151N,652 and CD74HC151E both specify 5.2mA output current (high and low). The SN74HC151N specifies 7.8mA, providing higher drive capability. This difference is not a limitation for substitution; the higher current rating of the TI part is a performance advantage.

Q: Are there package compatibility concerns?

A: All three parts use the 16-DIP (0.300", 7.62mm) package with through-hole mounting. Pin-to-pin compatibility is maintained, allowing direct board-level substitution without layout modifications.

Q: Why is the 74HC151N,652 marked as obsolete?

A: Obsolete status indicates the part is no longer manufactured by NXP. The SN74HC151N (Texas Instruments) remains in active production and is the recommended long-term source for this multiplexer function.

Q: Does operating temperature range affect substitution suitability?

A: The SN74HC151N operates to 85°C maximum, which covers standard industrial and commercial applications. If your design requires operation above 85°C, the CD74HC151E (-55°C ~ 125°C) extends the upper limit. Verify your application's actual thermal requirements before selecting based on temperature range alone.

Q: What compliance certifications should I verify?

A: The SN74HC151N carries ROHS3 compliance and is REACH unaffected. The CD74HC151E is RoHS non-compliant. Confirm your application's regulatory requirements before final part selection.