9LPRS477CKLF Equivalent & Substitute Parts

Part Overview

The 9LPRS477CKLF is a clock synthesizer IC manufactured by Renesas Electronics Corporation, designed for AMD CPU and SATA/SRC applications. This device features a single output with PLL functionality and operates from a crystal input source. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

9LPRS477CKLF

Renesas Electronics CorporationIn Stock: 6869LPRS477CKLF Datasheet

Current PartRFQ

9LPRS477DKLF

Renesas Electronics CorporationIn Stock: 10969LPRS477DKLF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9LPRS477CKLF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Package / Case: 64-VFQFN Exposed Pad (9x9mm)
• Mounting Type: Surface Mount
• Number of Circuits: 1
• PLL Functionality: Yes
• Input Type: Crystal
• Output Type: Clock
• Voltage Supply Range: 3.135V ~ 3.465V
• Operating Temperature Range: 0°C ~ 70°C
• Differential Input/Output Configuration: No/Yes

The substitute part 9LPRS477DKLF meets all critical electrical and mechanical parameters required for direct substitution in AMD CPU and SATA/SRC applications.

Parameter Comparison

Engineering Selection Recommendations

The 9LPRS477DKLF is a direct substitute for the 9LPRS477CKLF based on identical electrical specifications, package configuration, and compliance certifications. Both parts are manufactured by Renesas Electronics Corporation and maintain ROHS3 compliance and REACH unaffected status. The substitute part is available in tray packaging and maintains the same MSL rating of 3 (168 Hours), ensuring equivalent handling and storage requirements. Selection between these parts should be based on packaging availability and procurement lead times, as both are classified as obsolete products.

Frequently Asked Questions (FAQ)

Q: Can the 9LPRS477DKLF replace the 9LPRS477CKLF in existing designs?

A: Yes. Both parts share identical electrical parameters, package specifications (64-VFQFN Exposed Pad, 9x9mm), supply voltage range (3.135V ~ 3.465V), operating temperature range (0°C ~ 70°C), and functional characteristics (single output clock synthesizer with PLL and crystal input). No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. The 9LPRS477CKLF uses standard packaging, while the 9LPRS477DKLF is supplied in tray packaging. Both parts are manufactured by Renesas Electronics Corporation and are based on the same 9LPRS477 base product number.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain identical compliance status: ROHS3 compliant, REACH unaffected, and EAR99 export classification. Moisture sensitivity level (MSL 3, 168 Hours) is also identical.

Q: What should be considered when selecting between these substitutes?

A: Selection should be based on packaging requirements and procurement availability. The 9LPRS477DKLF offers higher inventory availability (1008 Pcs) compared to the 9LPRS477CKLF (641 Pcs). Both parts are obsolete, making inventory status a critical factor for long-term supply planning.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate within the same voltage supply range (3.135V ~ 3.465V) and temperature range (0°C ~ 70°C). Functional performance is identical.