Renesas 601G-01ILF Clock/Frequency Synthesizer IC - Equivalent & Substitute Parts

Part Overview

The Renesas 601G-01ILF is a Clock/Frequency Synthesizer IC designed for 156MHz applications in a 16-TSSOP surface mount package. This component integrates a Phase-Locked Loop (PLL) with bypass capability, accepting clock or crystal inputs and delivering CMOS outputs. The device operates across a 3V to 5.5V supply range with -40°C to 85°C temperature specifications.

The 601G-01ILF carries an Obsolete product status. Identifying functionally equivalent alternatives is essential for design continuity, production planning, and long-term supply chain management. Active substitute components maintain compatibility within defined electrical and mechanical parameters while offering extended availability.

Substiute Parts

601G-01ILF

Renesas Electronics CorporationIn Stock: 1086601G-01ILF Datasheet

Current PartRFQ

5P35023B-000NLGI

Renesas Electronics CorporationIn Stock: 9755P35023B-000NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 601G-01ILF is determined by the following critical parameters:

Functional Compatibility Criteria:

• PLL with Bypass capability requirement
• Clock or Crystal input acceptance
• CMOS output delivery
• Single circuit configuration
• Operating temperature range: -40°C to 85°C minimum
• Surface mount technology

Electrical Performance Criteria:

• Maximum frequency capability must meet or exceed 156MHz
• Supply voltage range must encompass or overlap the 3V to 5.5V specification
• Input:Output ratio compatibility for signal distribution

Compliance & Environmental Criteria:

• RoHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected status
• ECCN EAR99 classification

The 5P35023B-000NLGI qualifies as a substitute based on these parameters: it maintains PLL with Bypass functionality, accepts Clock and Crystal inputs (LVCMOS), operates across the required temperature range, achieves RoHS3 and REACH compliance, and provides enhanced frequency capability (500MHz) with expanded output options.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 601G-01ILF is classified as Obsolete, indicating discontinued manufacturing and limited future availability. The 5P35023B-000NLGI maintains Active status with confirmed inventory (908 Pcs New Original In Stock), ensuring supply chain continuity for new designs and production requirements.

Compliance & Certification Alignment: Both components maintain identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings. This ensures regulatory and environmental compatibility across manufacturing and deployment phases.

Functional Capability: The 5P35023B-000NLGI provides enhanced frequency performance (500MHz vs. 156MHz) while maintaining the required PLL with Bypass architecture and crystal/clock input acceptance. The expanded output options (LP-HCSL, LVCMOS, LVDS, LVPECL) offer greater flexibility for signal distribution in modern timing applications.

Package Transition: The substitute employs a 24-VFQFN Exposed Pad package versus the original 16-TSSOP configuration. This represents a footprint change requiring PCB layout modification. The QFN package provides superior thermal performance through the exposed pad design, beneficial for high-frequency operation.

Supply Voltage Consideration: The substitute operates across multiple voltage domains (1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V) rather than the single 3V ~ 5.5V range of the original. Design verification is required to confirm voltage rail compatibility with the selected operating domain.

Frequently Asked Questions (FAQ)

Q: Can the 5P35023B-000NLGI directly replace the 601G-01ILF without PCB modifications?

A: No. The substitute uses a different package (24-VFQFN vs. 16-TSSOP), requiring PCB footprint redesign. Pin assignments and signal routing must be verified against both datasheets before implementation.

Q: What are the key functional differences between these components?

A: Both maintain PLL with Bypass capability and accept clock/crystal inputs. The primary differences are: maximum frequency (500MHz vs. 156MHz), output types (expanded options in substitute), and supply voltage configuration (multiple domains vs. single range). The substitute provides enhanced performance headroom for higher-frequency applications.

Q: Are there any compliance or environmental concerns with substitution?

A: No. Both components maintain identical RoHS3 compliance, REACH Unaffected status, and MSL 1 ratings. Regulatory and environmental requirements are fully aligned.

Q: Why does the substitute have multiple supply voltage ranges?

A: The 5P35023B-000NLGI is designed for flexible deployment across different voltage domains. The device operates within one selected range per application. Verify that your system voltage aligns with one of the specified ranges: 1.71V ~ 1.89V, 2.375V ~ 2.625V, or 3.135V ~ 3.465V.

Q: Is the substitute suitable for legacy designs currently using the 601G-01ILF?

A: Functional compatibility exists, but package and voltage domain differences require design review. The substitute is suitable for new designs or redesigns where PCB layout modifications are acceptable. For legacy production requiring minimal changes, alternative 16-TSSOP clock synthesizers should be evaluated.

Q: What is the inventory status for both components?

A: The 601G-01ILF (Obsolete) has 1006 Pcs available. The 5P35023B-000NLGI (Active) has 908 Pcs available. Active status indicates ongoing manufacturing support for the substitute.