ICS502MIT Clock Generator IC Equivalent & Substitute Parts

Part Overview

The ICS502MIT is a Clock Generator IC manufactured by Renesas Electronics Corporation, designed for 140MHz clock generation in 8-SOIC surface mount packaging. This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The ICS502MIT features integrated PLL functionality with clock and crystal input options, delivering CMOS output signals suitable for timing-critical applications.

Substiute Parts

ICS502MIT

Renesas Electronics CorporationIn Stock: 11134ICS502MIT Datasheet

Current PartRFQ

NB3N502DG

onsemiIn Stock: 1547NB3N502DG Datasheet

DirectRFQ

NB3N502DR2G

onsemiIn Stock: 3083NB3N502DR2G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICS502MIT are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Critical Matching Parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) — identical physical footprint required for direct PCB replacement
• Voltage - Supply: 3V ~ 5.5V — compatible operating voltage range
• Operating Temperature: -40°C ~ 85°C — matching thermal operating window
• Input: Clock, Crystal — functional input compatibility
• Mounting Type: Surface Mount — consistent assembly method
• PLL: Yes — presence of phase-locked loop functionality

Performance Consideration:

• Frequency - Max: 140MHz minimum — substitute parts must support or exceed the original specification

The identified substitute parts (NB3N502DG and NB3N502DR2G) meet all critical matching parameters and represent active product alternatives from onsemi, providing enhanced frequency capability (190MHz) while maintaining full electrical and mechanical compatibility with the ICS502MIT footprint and operating requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ICS502MIT is classified as Obsolete, while both NB3N502DG and NB3N502DR2G are Active products. This status difference ensures long-term availability and supply chain continuity for new designs and production support.

Compliance and Certification: The onsemi substitutes (NB3N502DG and NB3N502DR2G) are ROHS3 Compliant, providing regulatory advantage over the RoHS non-compliant ICS502MIT. Both substitute parts maintain REACH Unaffected and EAR99 ECCN classifications consistent with the original part.

Packaging Selection:

• NB3N502DG (Tube packaging) — suitable for lower-volume applications and manual assembly processes
• NB3N502DR2G (Tape & Reel packaging) — optimized for high-volume automated assembly operations

Both packaging variants contain identical electrical specifications and are interchangeable at the functional level.

Performance Enhancement: The substitute parts deliver 190MHz maximum frequency capability, exceeding the ICS502MIT specification of 140MHz. This enhanced performance provides design margin for timing-critical applications while maintaining full backward compatibility with existing 140MHz system requirements.

Frequently Asked Questions (FAQ)

Q: Can NB3N502DG and NB3N502DR2G be used interchangeably with ICS502MIT? A: Yes. Both onsemi parts are electrically and mechanically equivalent to the ICS502MIT. The difference between NB3N502DG and NB3N502DR2G is packaging format only (Tube versus Tape & Reel). Both are suitable for direct PCB replacement without circuit modification.

Q: What is the primary reason for substitution? A: The ICS502MIT is Obsolete. The NB3N502DG and NB3N502DR2G are Active products from onsemi, ensuring ongoing availability and supply chain reliability for production and support applications.

Q: Are there any electrical differences between the ICS502MIT and substitute parts? A: The substitute parts share identical supply voltage (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and package footprint (8-SOIC). The NB3N502 series provides higher maximum frequency (190MHz versus 140MHz) and expanded output options (CMOS and TTL versus CMOS only). These differences represent functional enhancements with no compatibility concerns.

Q: Does the higher frequency rating of substitute parts affect compatibility? A: No. Higher frequency capability provides design margin and does not create compatibility issues. Systems designed for 140MHz operation function correctly with 190MHz-rated components.

Q: What packaging should be selected for production? A: NB3N502DR2G (Tape & Reel) is recommended for high-volume automated assembly. NB3N502DG (Tube) is suitable for lower-volume or manual assembly processes. Electrical performance is identical between packaging options.

Q: Are the substitute parts RoHS compliant? A: Yes. Both NB3N502DG and NB3N502DR2G are ROHS3 Compliant, providing regulatory advantage over the RoHS non-compliant ICS502MIT for new designs and updated production requirements.

Q: What is the MSL rating for substitute parts? A: Both substitute parts carry MSL 1 (Unlimited), matching the ICS502MIT specification. This indicates minimal moisture sensitivity and standard handling requirements.