Renesas 601M-02ILF Clock/Frequency Synthesizer Equivalent & Substitute Parts

Part Overview

The Renesas 601M-02ILF is a Clock/Frequency Synthesizer and Clock Generator IC designed for timing and synchronization applications. This device operates at a maximum frequency of 170MHz and features a Phase-Locked Loop (PLL) with integrated divider and multiplier functionality. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity. The 16-SOIC surface mount package provides compact integration for space-constrained applications.

Substiute Parts

601M-02ILF

Renesas Electronics CorporationIn Stock: 1166601M-02ILF Datasheet

Current PartRFQ

5P35023B-000NLGI

Renesas Electronics CorporationIn Stock: 9755P35023B-000NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 601M-02ILF requires evaluation against the following critical parameters that define functional equivalence:

Core Functional Parameters:

• PLL architecture and bypass capability
• Input signal compatibility (Clock, Crystal)
• Output signal type and voltage levels
• Frequency synthesis range and ratio capability
• Divider and multiplier functionality

Environmental & Compliance Parameters:

• Operating temperature range (-40°C ~ 85°C)
• Supply voltage compatibility
• RoHS and REACH compliance status
• Moisture sensitivity classification

Physical & Integration Parameters:

• Surface mount packaging
• Pin count and footprint considerations
• Mounting compatibility with existing PCB designs

The Renesas 5P35023B-000NLGI qualifies as a manufacturer-recommended substitute based on shared PLL architecture, overlapping operating temperature range, compatible supply voltage options, and equivalent compliance certifications. However, differences in package type, frequency capability, and output signal options require careful evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 601M-02ILF is classified as Obsolete. The 5P35023B-000NLGI is classified as Active, ensuring long-term availability, ongoing manufacturing support, and continued compliance with evolving regulatory standards.

Compliance & Certification: Both devices maintain ROHS3 compliance and REACH Unaffected status, satisfying current environmental and regulatory requirements. The 5P35023B-000NLGI demonstrates superior moisture handling with MSL 1 (Unlimited) compared to MSL 3 (168 Hours), reducing risk in high-humidity storage and assembly environments.

Functional Capability: The 5P35023B-000NLGI provides extended frequency capability (500MHz maximum) and PLL bypass functionality, offering greater design flexibility. The device supports multiple output signal types (LP-HCSL, LVCMOS, LVDS, LVPECL) compared to the single CMOS output of the 601M-02ILF.

Integration Considerations: Package transition from 16-SOIC to 24-VFQFN requires PCB redesign and layout modifications. Supply voltage ranges differ; the 5P35023B-000NLGI operates across multiple discrete voltage bands rather than the continuous 3V–5.5V range of the 601M-02ILF. Input/output ratio changes from 1:1 to 1:6, affecting frequency synthesis configuration.

Frequently Asked Questions (FAQ)

Q: Can the 5P35023B-000NLGI directly replace the 601M-02ILF without PCB modifications?

A: No. The devices use different packages (16-SOIC versus 24-VFQFN), requiring PCB redesign. Pin assignments, signal routing, and layout considerations differ between the two devices.

Q: What are the key differences in supply voltage requirements?

A: The 601M-02ILF accepts a continuous voltage range of 3V–5.5V. The 5P35023B-000NLGI operates across three discrete voltage bands: 1.71V–1.89V, 2.375V–2.625V, or 3.135V–3.465V. Existing power supply designs may require modification.

Q: How do the frequency capabilities compare?

A: The 601M-02ILF operates to 170MHz maximum. The 5P35023B-000NLGI extends to 500MHz, providing headroom for higher-frequency applications. Applications limited to 170MHz or below remain within the 5P35023B-000NLGI operating range.

Q: What is the significance of the PLL bypass feature in the 5P35023B-000NLGI?

A: PLL bypass allows direct clock pass-through without synthesis, providing operational flexibility not available in the 601M-02ILF. This feature enables use in applications requiring both synthesized and non-synthesized clock modes.

Q: Are there output signal compatibility considerations?

A: Yes. The 601M-02ILF provides CMOS output only. The 5P35023B-000NLGI supports LP-HCSL, LVCMOS, LVDS, and LVPECL outputs. Downstream receiver circuits must be verified for compatibility with selected output types.

Q: How do the input/output ratios affect system design?

A: The 601M-02ILF maintains 1:1 input-to-output ratio. The 5P35023B-000NLGI provides 1:6 ratio capability, enabling higher multiplication factors. Frequency synthesis configurations and divider settings require recalculation for equivalent output frequencies.

Q: What is the impact of moisture sensitivity level differences?

A: The 601M-02ILF (MSL 3) requires controlled storage at ≤60% relative humidity for 168 hours maximum. The 5P35023B-000NLGI (MSL 1) has unlimited shelf life under standard conditions, reducing handling constraints and storage risk.

Q: Are both devices suitable for the full -40°C to 85°C operating temperature range?

A: Yes. Both devices specify identical operating temperature ranges (-40°C ~ 85°C), ensuring thermal compatibility across industrial and commercial applications.