Equivalent & Substitute Parts for Renesas 502MLFT Clock Generator IC

Part Overview

The Renesas 502MLFT is a Clock Generator IC operating at 190MHz maximum frequency in an 8-SOIC package. This device features Phase-Locked Loop (PLL) technology with multiplier capability, accepting clock or crystal inputs and providing CMOS output. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility across frequency specifications, supply voltage ranges, package form factor, and functional output characteristics.

Substiute Parts

502MLFT

Renesas Electronics CorporationIn Stock: 4534502MLFT Datasheet

Current PartRFQ

5P35021B-000NDGI8

Renesas Electronics CorporationIn Stock: 9035P35021B-000NDGI8 Datasheet

MFR RecommendedRFQ

NB3N502DG

onsemiIn Stock: 1547NB3N502DG Datasheet

UpgradeRFQ

NB3N502DR2G

onsemiIn Stock: 3083NB3N502DR2G Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 502MLFT are identified based on the following critical parameters that determine functional and physical compatibility:

Primary Compatibility Criteria:

• Package form factor: 8-SOIC (0.154", 3.90mm Width) for direct PCB footprint compatibility
• Maximum frequency: 190MHz minimum to support existing clock distribution requirements
• Supply voltage range: 3V ~ 5.5V to match power delivery architecture
• Input capability: Clock or Crystal input support for oscillator integration
• Output type: CMOS-compatible logic levels for downstream circuit interfacing
• PLL functionality: Phase-Locked Loop with multiplier capability for frequency synthesis

Substitution Categories:

MFR Recommended Substitute: 5P35021B-000NDGI8 represents a manufacturer-recommended upgrade path. This part transitions from 8-SOIC to 20QFN packaging, requiring PCB redesign but offering active product status and continued manufacturer support.

Upgrade Substitutes: NB3N502DG and NB3N502DR2G are onsemi PLL Clock Multiplier ICs that maintain the 8-SOIC package footprint, enabling direct replacement without PCB modification. Both parts are active products with extended operating temperature range and enhanced functional specifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct PCB Footprint Compatibility (No Layout Redesign):

Select either NB3N502DG or NB3N502DR2G. Both parts maintain the 8-SOIC package form factor, enabling pin-for-pin replacement on existing PCB layouts. NB3N502DR2G is preferred for production environments due to Tape & Reel packaging, which supports automated assembly processes. NB3N502DG in Tube packaging is suitable for lower-volume applications or manual assembly workflows. Both onsemi parts are active products with ROHS3 compliance and extended operating temperature range (-40°C to 85°C), providing superior environmental performance compared to the original 502MLFT specification (0°C to 70°C).

For New Design or PCB Redesign Scenarios:

The 5P35021B-000NDGI8 represents the manufacturer-recommended upgrade path from Renesas. This part requires transition from 8-SOIC to 20QFN packaging, necessitating PCB layout modification. This option is appropriate when design refresh cycles permit layout changes and when leveraging the latest active Renesas clock generator technology is prioritized.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original 502MLFT. Moisture Sensitivity Level 1 (Unlimited) is consistent across all options, eliminating moisture handling requirement changes during transition.

Frequently Asked Questions (FAQ)

Q: Can NB3N502DG or NB3N502DR2G be used as direct replacements for 502MLFT without PCB modification?

A: Yes. Both onsemi parts maintain the 8-SOIC (0.154", 3.90mm Width) package footprint, supporting direct PCB replacement. Pin configuration and functional characteristics are compatible with the original 502MLFT design. The primary difference is the onsemi parts feature PLL with Bypass capability and extended operating temperature range.

Q: What is the difference between NB3N502DG and NB3N502DR2G?

A: Both parts are electrically identical onsemi PLL Clock Multiplier ICs with 190MHz maximum frequency and 8-SOIC packaging. The distinction is packaging format: NB3N502DG is supplied in Tube packaging, while NB3N502DR2G is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume production and automated assembly processes.

Q: Does the 5P35021B-000NDGI8 require PCB redesign?

A: Yes. The 5P35021B-000NDGI8 uses 20QFN packaging, which differs from the original 8-SOIC form factor. PCB layout modification is required to accommodate the different pin count and package dimensions. This option is suitable for new designs or planned PCB revisions.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 502MLFT and all listed substitute parts (5P35021B-000NDGI8, NB3N502DG, NB3N502DR2G) are ROHS3 compliant and REACH unaffected, maintaining consistent regulatory compliance across substitution options.

Q: What is the operating temperature range difference between 502MLFT and the onsemi substitutes?

A: The original 502MLFT operates from 0°C to 70°C. Both onsemi substitutes (NB3N502DG and NB3N502DR2G) operate from -40°C to 85°C, providing extended temperature performance suitable for industrial and automotive applications.

Q: Can the 502MLFT be used interchangeably with TTL output devices?

A: The 502MLFT provides CMOS output only. The onsemi substitutes (NB3N502DG and NB3N502DR2G) support both CMOS and TTL output, offering greater flexibility for legacy circuit integration. Verify downstream circuit input requirements before selection.