502MILF Clock Generator IC Equivalent & Substitute Parts

Part Overview

The 502MILF is a Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 140MHz maximum frequency operation in 8-SOIC surface mount packaging. This device features integrated PLL functionality with 1:2 input-to-output ratio, accepting clock or crystal inputs and providing CMOS output. The part is classified as Obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. Substitute parts must maintain functional compatibility across supply voltage, frequency range, package form factor, and output characteristics.

Substiute Parts

502MILF

Renesas Electronics CorporationIn Stock: 1643502MILF Datasheet

Current PartRFQ

5P35021B-000NDGI

Renesas Electronics CorporationIn Stock: 9075P35021B-000NDGI Datasheet

MFR RecommendedRFQ

NB3N502DR2G

onsemiIn Stock: 3083NB3N502DR2G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 502MILF is determined by the following critical parameters:

Package Compatibility: The 8-SOIC (0.154", 3.90mm Width) surface mount package is the primary mechanical constraint. Substitute parts must use identical or pin-compatible packaging to ensure PCB layout compatibility without redesign.

Electrical Compatibility: Supply voltage range (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and output type (CMOS) define the functional operating envelope. Substitute parts must support these ranges or a superset thereof.

Frequency and Multiplier Ratio: Maximum frequency of 140MHz and 1:2 input-to-output ratio are core functional specifications. Substitute parts must support these frequency ranges and multiplier configurations.

PLL Functionality: Integrated PLL with bypass capability is required for clock generation and frequency multiplication.

Two substitute parts are identified:

1. NB3N502DR2G (onsemi) - Direct package and pin-compatible substitute with identical 8-SOIC packaging and matching supply voltage range.

2. 5P35021B-000NDGI (Renesas Electronics Corporation) - Functional alternative with enhanced capabilities but different package form factor (20-VFQFN), requiring PCB redesign.

Parameter Comparison

Engineering Selection Recommendations

NB3N502DR2G Selection Criteria:

The NB3N502DR2G is the preferred direct substitute for the 502MILF in existing designs. This onsemi part maintains identical 8-SOIC packaging, matching supply voltage range (3V ~ 5.5V), and identical operating temperature range (-40°C ~ 85°C). The 1:2 input-to-output ratio and CMOS output compatibility ensure functional equivalence. Maximum frequency of 190MHz exceeds the 502MILF requirement of 140MHz, providing operational margin. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications. The NB3N502DR2G is currently Active in production status with 2978 units in stock, ensuring supply continuity.

5P35021B-000NDGI Selection Criteria:

The 5P35021B-000NDGI is a functional alternative for applications requiring enhanced frequency capability (500MHz maximum) and multiple output format options (LP-HCSL, LVCMOS, LVDS, LVPECL). This Renesas part requires PCB redesign due to 20-VFQFN packaging versus the original 8-SOIC form factor. Supply voltage ranges differ, requiring circuit evaluation for compatibility. The 2:3 input-to-output ratio differs from the 502MILF 1:2 ratio, necessitating frequency calculation verification. This part is Active in production status with 811 units in stock. Selection is appropriate only for new designs where package change is acceptable and enhanced capabilities provide system benefit.

Frequently Asked Questions (FAQ)

Q: Can the NB3N502DR2G be used as a direct drop-in replacement for the 502MILF?

A: Yes. The NB3N502DR2G maintains identical 8-SOIC packaging, pin configuration, supply voltage range (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 1:2 multiplier ratio. No PCB modifications are required for electrical or mechanical compatibility.

Q: What is the primary limitation of the 5P35021B-000NDGI as a substitute?

A: The 5P35021B-000NDGI uses 20-VFQFN packaging instead of 8-SOIC, requiring PCB redesign. Additionally, the 2:3 input-to-output ratio differs from the 502MILF 1:2 ratio, necessitating frequency calculation verification for your specific application.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both NB3N502DR2G and 5P35021B-000NDGI are ROHS3 compliant, matching the 502MILF compliance status.

Q: What is the frequency headroom provided by the NB3N502DR2G?

A: The NB3N502DR2G supports maximum frequency of 190MHz, compared to the 502MILF specification of 140MHz. This provides 50MHz operational margin above the original part specification.

Q: Can the 5P35021B-000NDGI operate at the same supply voltage as the 502MILF?

A: The 5P35021B-000NDGI supports multiple supply voltage ranges (1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V). The 3.135V ~ 3.465V range overlaps with the 502MILF 3V ~ 5.5V range, but does not fully encompass it. Circuit design evaluation is required to confirm compatibility.

Q: Which substitute part should be selected for a direct replacement in existing production?

A: The NB3N502DR2G is the appropriate selection for direct replacement in existing designs. Identical packaging and electrical specifications eliminate redesign requirements while maintaining supply continuity with an Active production part.