Equivalent & Substitute Parts for Renesas 252M-61LF

Part Overview

The Renesas 252M-61LF is a Clock/Timing IC module classified as an integrated circuit component. This part is currently listed with Obsolete product status, indicating it is no longer in active production or supported by the manufacturer. Due to its obsolete classification, identification of functionally equivalent substitute components is necessary for design continuity, system maintenance, and procurement of replacement units.

Substiute Parts

252M-61LF

Renesas Electronics CorporationIn Stock: 1048252M-61LF Datasheet

Current PartRFQ

5L35021B-000NDGI

Renesas Electronics CorporationIn Stock: 7635L35021B-000NDGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5L35021B-000NDGI is designated as the manufacturer-recommended equivalent for the 252M-61LF. This substitution is based on the following criteria:

Substitution Basis:

• Both components are manufactured by Renesas Electronics Corporation
• Both belong to the Clock/Timing functional category
• The 5L35021B-000NDGI is an Active product with current manufacturer support
• The substitute provides clock generation functionality within the timing IC domain

Key Determining Parameters for Substitution:

• Manufacturer alignment (Renesas Electronics Corporation)
• Functional category (Clock/Timing)
• Active product status of the substitute
• Availability and supply chain continuity

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5L35021B-000NDGI

The 5L35021B-000NDGI is the manufacturer-designated substitute for the obsolete 252M-61LF. Selection of this component is supported by the following factors:

• Product Status: The substitute maintains Active status with ongoing manufacturer support, ensuring long-term availability and technical documentation access
• Manufacturer Continuity: Both components originate from Renesas Electronics Corporation, maintaining design ecosystem consistency
• Compliance: The substitute carries REACH Unaffected status, confirming regulatory compliance for environmental and hazardous substance restrictions
• Supply Availability: Current inventory of 726 units provides procurement accessibility for replacement and new applications
• Functional Category: Both components operate within the Clock/Timing IC classification, maintaining functional alignment

Implementation Consideration:

Transition from the 252M-61LF to the 5L35021B-000NDGI requires evaluation of physical form factor compatibility, as the substitute specifies a 20-VFQFN Exposed Pad surface mount package. PCB layout and footprint modifications may be necessary to accommodate the specified package geometry.

Frequently Asked Questions (FAQ)

Q: Why is the 252M-61LF classified as Obsolete?

A: The 252M-61LF has reached end-of-life status with Renesas Electronics Corporation and is no longer manufactured or actively supported. Obsolete classification indicates the component is no longer available through standard distribution channels for new production orders.

Q: Is the 5L35021B-000NDGI a direct pin-for-pin replacement?

A: Pin compatibility cannot be confirmed based on the provided technical parameters. The substitute utilizes a 20-VFQFN Exposed Pad package, while the original part's package specification is not provided. Physical footprint and pinout verification is required before implementation.

Q: What is the difference between the two components' functional specifications?

A: The 5L35021B-000NDGI is specified as a Clock Generator IC with 250MHz maximum frequency, PLL functionality, and support for LP-HCSL and LVCMOS output types. The original 252M-61LF specifications are not provided in the technical data, limiting direct functional comparison.

Q: Can I use the 252M-61LF inventory instead of transitioning to the substitute?

A: While 1017 units of the 252M-61LF remain in current inventory, the Obsolete product status indicates no future manufacturing or manufacturer support. Long-term design continuity and supply chain stability favor transition to the Active substitute component.

Q: What are the environmental compliance considerations?

A: The 5L35021B-000NDGI carries REACH Unaffected status, confirming compliance with EU Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals. Moisture Sensitivity Level 1 (Unlimited) indicates minimal moisture handling restrictions during storage and assembly.

Q: What is the operating temperature range for the substitute?

A: The 5L35021B-000NDGI operates across -40°C to 85°C ambient temperature range (TA), covering standard industrial and commercial temperature specifications.