Renesas Electronics 501GLF Clock Generator IC - Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 501GLF is a Clock Generator IC designed for 160MHz operation in an 8-TSSOP surface mount package. This device features a Phase-Locked Loop (PLL) with multiplier capability, accepting clock or crystal inputs and delivering CMOS outputs. The 501GLF operates across a 3V to 5.25V supply range with a 0°C to 70°C temperature specification.

The 501GLF is classified as Obsolete. Locating equivalent or substitute components is necessary for ongoing system support, design updates, or when original inventory becomes unavailable. Substitute parts must maintain functional compatibility within the constraints of the application's electrical and mechanical requirements.

Substiute Parts

501GLF

Renesas Electronics CorporationIn Stock: 704501GLF Datasheet

Current PartRFQ

5L2503-000NVGI

Renesas Electronics CorporationIn Stock: 8015L2503-000NVGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 501GLF requires evaluation against the following critical parameters:

• Frequency Range: Maximum operating frequency must support or exceed the 160MHz requirement
• PLL Capability: Presence of Phase-Locked Loop functionality
• Input/Output Configuration: Compatibility with clock or crystal inputs and CMOS output delivery
• Supply Voltage: Operating voltage range must overlap with or encompass the 3V to 5.25V specification
• Operating Temperature Range: Must support the 0°C to 70°C operating window
• Package Compatibility: Surface mount package with compatible pinout and footprint
• Number of Circuits: Single circuit configuration

The identified substitute part, 5L2503-000NVGI, is a Renesas Electronics MicroCLock™ series device. However, this substitute exhibits significant parameter divergence from the 501GLF:

• Frequency maximum of 32.768kHz (versus 160MHz for 501GLF)
• Crystal input only (versus clock or crystal for 501GLF)
• LVCMOS output (versus CMOS for 501GLF)
• Three circuits (versus one circuit for 501GLF)
• 1:3 input-to-output ratio (versus 1:1 for 501GLF)
• Supply voltage range of 1.71V to 1.89V (versus 3V to 5.25V for 501GLF)
• Operating temperature range of -40°C to 85°C (versus 0°C to 70°C for 501GLF)
• 12-UFDFN package (versus 8-TSSOP for 501GLF)

Parameter Comparison

Engineering Selection Recommendations

The 5L2503-000NVGI cannot serve as a direct functional substitute for the 501GLF based on the provided electrical and mechanical parameters. The frequency specification mismatch (32.768kHz versus 160MHz), incompatible supply voltage ranges (1.71V–1.89V versus 3V–5.25V), different package footprint (12-UFDFN versus 8-TSSOP), and divergent circuit configuration (3 circuits with 1:3 ratio versus 1 circuit with 1:1 ratio) represent fundamental incompatibilities.

The 5L2503-000NVGI is classified as Active with ROHS3 compliance and superior moisture sensitivity characteristics (MSL 1 versus MSL 3). However, these advantages do not offset the electrical and mechanical incompatibilities that would prevent functional replacement in applications designed for the 501GLF.

For applications requiring a 160MHz clock generator with PLL capability in an 8-TSSOP package, alternative Renesas Electronics devices or equivalent offerings from other manufacturers should be evaluated based on matching the specified electrical parameters and package requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5L2503-000NVGI replace the 501GLF in my design?

A: No. The 5L2503-000NVGI operates at a maximum frequency of 32.768kHz, whereas the 501GLF is specified for 160MHz operation. The supply voltage ranges are also incompatible (1.71V–1.89V versus 3V–5.25V), and the package footprints differ (12-UFDFN versus 8-TSSOP). These parameters are fundamental to device function and cannot be bridged through design modification.

Q: What parameters must match for a valid clock generator substitution?

A: Critical parameters include maximum frequency, supply voltage range, input type (clock versus crystal), output type (CMOS versus LVCMOS), number of circuits, input-to-output ratio, and package footprint. All must be compatible with the application requirements.

Q: Why is the 501GLF listed as Obsolete?

A: Obsolete status indicates the device is no longer manufactured or supported by Renesas Electronics. New designs should not incorporate obsolete components. Existing systems using the 501GLF may require component qualification and substitution planning for long-term support.

Q: Does the 5L2503-000NVGI offer any advantages over the 501GLF?

A: The 5L2503-000NVGI is an Active product with ROHS3 compliance and superior moisture sensitivity (MSL 1 versus MSL 3). However, these advantages apply only to applications requiring low-frequency crystal oscillator functionality, not high-frequency clock generation.

Q: What should I do if I need to replace the 501GLF in production?

A: Identify alternative clock generator devices from Renesas Electronics or other manufacturers that match the 160MHz frequency requirement, 3V–5.25V supply range, 8-TSSOP package footprint, and CMOS output specification. Conduct electrical and thermal characterization before design release.