Equivalent & Substitute Parts for Renesas 670M-03ILF Clock Synchronizer

Part Overview

The Renesas 670M-03ILF is a Clock Synchronizer with Zero Delay Buffer functionality, designed for synchronizing clock signals up to 210MHz in 16-SOIC surface mount packaging. This device operates across a 3V to 5.5V supply range and is suitable for applications requiring precise clock distribution with minimal phase delay.

The 670M-03ILF carries an Obsolete product status. Locating equivalent or substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this clock synchronizer.

Substiute Parts

670M-03ILF

Renesas Electronics CorporationIn Stock: 987670M-03ILF Datasheet

Current PartRFQ

5P35023B-000NLGI

Renesas Electronics CorporationIn Stock: 9755P35023B-000NLGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 5P35023B-000NLGI is identified as a manufacturer-recommended substitute for the 670M-03ILF. Substitution eligibility is determined by the following critical parameters:

Functional Compatibility Criteria:

• Both devices are Renesas Electronics Corporation clock timing ICs with integrated PLL functionality
• Both support surface mount assembly
• Both operate within the -40°C to 85°C temperature range
• Both comply with RoHS3 and REACH requirements

Operational Differences: The 5P35023B-000NLGI operates as a Clock Generator with expanded capabilities (500MHz maximum frequency, 1:6 input-to-output ratio, multiple output formats including LP-HCSL, LVCMOS, LVDS, and LVPECL) compared to the 670M-03ILF's dedicated zero-delay buffer function (210MHz, 1:1 ratio, CMOS output only). The substitute supports multiple supply voltage ranges (1.71V–1.89V, 2.375V–2.625V, 3.135V–3.465V) and features improved moisture sensitivity (MSL 1 versus MSL 3).

Package Consideration: The substitute uses 24-VFQFN packaging versus the original 16-SOIC, requiring PCB layout and footprint redesign.

Parameter Comparison

Engineering Selection Recommendations

The 5P35023B-000NLGI is the manufacturer-recommended substitute and carries Active product status, ensuring long-term availability and supply chain continuity. Both devices maintain compliance with RoHS3 and REACH requirements, supporting regulatory obligations.

The substitute's improved moisture sensitivity level (MSL 1 versus MSL 3) provides enhanced reliability during storage and assembly processes. The Active status of the 5P35023B-000NLGI eliminates obsolescence risk associated with the original 670M-03ILF.

Selection of the substitute requires PCB redesign due to package change from 16-SOIC to 24-VFQFN. The expanded frequency capability (500MHz versus 210MHz) and multiple output format support of the substitute provide design flexibility for current and future applications.

Frequently Asked Questions (FAQ)

Q: Can the 5P35023B-000NLGI directly replace the 670M-03ILF without PCB modifications?

A: No. The 5P35023B-000NLGI uses 24-VFQFN packaging while the 670M-03ILF uses 16-SOIC packaging. PCB footprint and layout redesign is required. Pin assignments and signal routing must be verified against device datasheets before implementation.

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

A: The 670M-03ILF is a dedicated zero-delay clock synchronizer with 1:1 input-to-output ratio and 210MHz maximum frequency. The 5P35023B-000NLGI is a clock generator with 1:6 input-to-output ratio, 500MHz maximum frequency, and multiple output format options (LP-HCSL, LVCMOS, LVDS, LVPECL). The substitute offers expanded functionality beyond the original device's scope.

Q: Are supply voltage ranges compatible between these devices?

A: The 670M-03ILF operates at 3V to 5.5V. The 5P35023B-000NLGI supports multiple discrete voltage ranges: 1.71V–1.89V, 2.375V–2.625V, and 3.135V–3.465V. The 3.135V–3.465V range overlaps with the original device's supply range. Power supply design must accommodate the substitute's specific voltage requirements.

Q: Does the substitute maintain the same operating temperature range?

A: Yes. Both devices operate across -40°C to 85°C, ensuring thermal compatibility in equivalent environmental conditions.

Q: What is the significance of the MSL rating difference?

A: The 670M-03ILF has MSL 3 (168-hour moisture sensitivity limit), while the 5P35023B-000NLGI has MSL 1 (unlimited). MSL 1 indicates superior moisture resistance and reduced risk of moisture-induced failures during storage and assembly processes.

Q: Is the substitute recommended by the manufacturer?

A: Yes. The 5P35023B-000NLGI is identified as the manufacturer-recommended substitute and carries Active product status, confirming ongoing support and availability from Renesas Electronics Corporation.