74HCT147N,652 Equivalent & Substitute Parts

Part Overview

The 74HCT147N,652 is a priority encoder IC with a 1 x 10:4 configuration in a 16-DIP package, manufactured by NXP USA Inc. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates on a single 4.5V to 5.5V supply and is suitable for applications requiring priority encoding functionality in through-hole mounting configurations.

Substiute Parts

74HCT147N,652

NXP USA Inc.In Stock: 118174HCT147N,652 Datasheet

Current PartRFQ

CD74HCT147E

Harris CorporationIn Stock: 10087CD74HCT147E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74HCT147N,652 is determined by the following critical parameters:

• Circuit Configuration: Must be 1 x 10:4 priority encoder
• Package Type: Must be 16-DIP (0.300", 7.62mm) for through-hole mounting compatibility
• Voltage Supply Range: Must operate within 4.5V ~ 5.5V
• Output Current Specifications: Must support 4mA output high and low current
• Base Product Series: 74HCT logic family

The CD74HCT147E meets all these substitution criteria, providing functional and mechanical equivalence to the 74HCT147N,652.

Parameter Comparison

Engineering Selection Recommendations

The CD74HCT147E is a direct functional substitute for the 74HCT147N,652. Both parts share identical circuit configurations, package specifications, and electrical operating parameters. The CD74HCT147E offers an extended lower operating temperature range (-55°C vs. -40°C), providing additional thermal margin for applications requiring operation at lower temperatures.

Compliance considerations differ between the two parts: the 74HCT147N,652 is ROHS3 compliant, while the CD74HCT147E is RoHS non-compliant. Design teams must evaluate regulatory requirements for their specific application before selection.

Both parts are classified as obsolete. Availability should be confirmed with component distributors prior to procurement decisions.

Frequently Asked Questions (FAQ)

Q: Can the CD74HCT147E be used as a direct replacement for the 74HCT147N,652?

A: Yes. Both parts are 1 x 10:4 priority encoders in 16-DIP packages with identical voltage supply ranges (4.5V ~ 5.5V) and output current specifications (4mA). Pin configuration and functional behavior are equivalent.

Q: What is the difference in operating temperature ranges?

A: The 74HCT147N,652 operates from -40°C to 125°C, while the CD74HCT147E operates from -55°C to 125°C. The CD74HCT147E supports a wider lower temperature range, suitable for applications requiring operation in colder environments.

Q: Are there RoHS compliance differences?

A: Yes. The 74HCT147N,652 is ROHS3 compliant, while the CD74HCT147E is RoHS non-compliant. Applications subject to RoHS regulations must use the 74HCT147N,652 or identify alternative compliant sources.

Q: Are both parts still in production?

A: No. Both the 74HCT147N,652 and CD74HCT147E are classified as obsolete. Availability is limited to existing inventory from distributors.

Q: What packaging options are available?

A: The 74HCT147N,652 is supplied in standard packaging, while the CD74HCT147E is supplied in tube packaging. Both use the same 16-DIP (0.300", 7.62mm) case for through-hole mounting.