74HC147N,652 Priority Encoder Equivalent & Substitute Parts

Part Overview

The 74HC147N,652 is a priority encoder IC manufactured by NXP USA Inc., designed to convert a 10-line input into a 4-line binary output. This component belongs to the 74HC logic family and is housed in a 16-DIP package for through-hole mounting applications.

The 74HC147N,652 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this priority encoder.

Substiute Parts

74HC147N,652

NXP USA Inc.In Stock: 70974HC147N,652 Datasheet

Current PartRFQ

CD74HC147E

Texas InstrumentsIn Stock: 24367CD74HC147E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74HC147N,652 are identified based on the following critical parameters that determine functional and mechanical compatibility:

• Circuit Configuration: 1 x 10:4 priority encoder function
• Package Type: 16-DIP (0.300", 7.62mm) through-hole mounting
• Voltage Supply Range: 2V ~ 6V single supply operation
• Output Current Characteristics: 5.2mA high and low output current
• Logic Family: 74HC series compatibility
• Compliance Standards: RoHS3 compliance and REACH unaffected status

The CD74HC147E from Texas Instruments meets all these substitution criteria and is classified as an active product, providing improved supply availability compared to the obsolete 74HC147N,652.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC147E is a direct functional substitute for the 74HC147N,652. Both components share identical circuit configurations, package specifications, voltage supply requirements, and output current ratings. The CD74HC147E maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

The primary advantage of selecting the CD74HC147E is its active product status, which provides superior supply chain availability and long-term procurement reliability. The extended operating temperature range of the CD74HC147E (-55°C to 125°C versus -40°C to 125°C) offers additional thermal margin for applications requiring lower temperature operation.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC147E directly replace the 74HC147N,652 in existing designs?

A: Yes. Both parts are 16-DIP through-hole priority encoders with identical 1 x 10:4 circuit configurations, voltage supply ranges (2V ~ 6V), and output current specifications (5.2mA). Pin-to-pin compatibility and functional equivalence are confirmed.

Q: What is the difference in operating temperature ranges?

A: The 74HC147N,652 operates from -40°C to 125°C, while the CD74HC147E operates from -55°C to 125°C. The CD74HC147E supports extended low-temperature operation, which may be beneficial for applications in cold environments.

Q: Are there packaging differences between these parts?

A: Both components use 16-DIP (0.300", 7.62mm) through-hole packages. The 74HC147N,652 is supplied in standard packaging, while the CD74HC147E is supplied in tube packaging. Both are suitable for through-hole PCB assembly.

Q: Why is the 74HC147N,652 listed as obsolete?

A: The 74HC147N,652 has been discontinued by NXP USA Inc. The CD74HC147E from Texas Instruments remains in active production, making it the recommended substitute for new designs and ongoing production support.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 74HC147N,652 and CD74HC147E are ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory compliance for industrial and commercial applications.