ICS9FG108DGLF Equivalent & Substitute Parts

Part Overview

The ICS9FG108DGLF is a Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation, designed for Intel CPU Server, PCI Express (PCIe), and SATA applications. This device generates a 400MHz output from clock or crystal input using a phase-locked loop (PLL) architecture with a 1:9 input-to-output frequency ratio. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing system support and new design implementations.

Substiute Parts

ICS9FG108DGLF

Renesas Electronics CorporationIn Stock: 1903ICS9FG108DGLF Datasheet

Current PartRFQ

9FG108EGLF

Renesas Electronics CorporationIn Stock: 11709FG108EGLF Datasheet

MFR RecommendedRFQ

9FG108EGLFT

Renesas Electronics CorporationIn Stock: 21899FG108EGLFT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ICS9FG108DGLF is determined by strict equivalence across the following critical parameters:

• Package / Case: 48-TFSOP (0.240", 6.10mm Width)
• Frequency - Max: 400MHz
• Output Type: HCSL
• Voltage - Supply: 3.135V ~ 3.465V
• Operating Temperature: 0°C ~ 70°C
• PLL: Yes
• Number of Circuits: 1
• Ratio - Input:Output: 1:9
• Differential - Input:Output: No/Yes
• Mounting Type: Surface Mount
• Input: Clock, Crystal
• Main Purpose: Intel CPU Server, PCI Express (PCIe), SATA

The substitute parts 9FG108EGLF and 9FG108EGLFT maintain identical electrical and mechanical specifications to the original part. Both are manufactured by Renesas Electronics Corporation and are classified as active products, providing long-term availability compared to the obsolete status of the ICS9FG108DGLF.

Parameter Comparison

Engineering Selection Recommendations

Both 9FG108EGLF and 9FG108EGLFT are direct functional equivalents to the ICS9FG108DGLF. The primary distinction between the two substitute parts is packaging format:

• 9FG108EGLF is supplied in Tube packaging
• 9FG108EGLFT is supplied in Cut Tape (CT) & Digi-Reel® packaging

Both substitute parts carry active product status from Renesas Electronics Corporation, ensuring continued manufacturing support and availability. Both are ROHS3 compliant and maintain identical electrical specifications, thermal characteristics, and compliance certifications (REACH Unaffected, EAR99 ECCN classification).

Selection between the two substitute parts should be based on procurement and assembly requirements. Tube packaging is suitable for lower-volume applications and manual assembly processes, while Cut Tape & Digi-Reel® packaging is optimized for automated pick-and-place assembly operations.

Frequently Asked Questions (FAQ)

Q: Can 9FG108EGLF and 9FG108EGLFT be used interchangeably with ICS9FG108DGLF?

A: Yes. Both substitute parts maintain identical electrical specifications, output characteristics, frequency range, supply voltage, operating temperature range, and package dimensions. The only differences are product status (active versus obsolete) and packaging format.

Q: What is the difference between 9FG108EGLF and 9FG108EGLFT?

A: Both parts are electrically and mechanically identical. The difference is packaging: 9FG108EGLF uses Tube packaging, while 9FG108EGLFT uses Cut Tape (CT) & Digi-Reel® packaging. Choose based on your assembly process requirements.

Q: Why is the original ICS9FG108DGLF marked as obsolete?

A: The ICS9FG108DGLF has been superseded by the active 9FG108EGLF and 9FG108EGLFT variants. Renesas Electronics Corporation continues to manufacture the newer part numbers with identical functionality and improved compliance certifications.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 9FG108EGLF and 9FG108EGLFT are ROHS3 compliant. The original ICS9FG108DGLF RoHS status was not specified in the available documentation.

Q: What is the 1:9 frequency ratio specification?

A: The 1:9 input-to-output ratio indicates that the IC multiplies the input clock frequency by a factor of nine. For example, a 44.44MHz input clock produces a 400MHz output clock.

Q: Can these parts be used in new designs?

A: Yes. The substitute parts 9FG108EGLF and 9FG108EGLFT are active products suitable for new designs. They provide long-term availability and manufacturing support from Renesas Electronics Corporation.

Q: What packaging should I select for automated assembly?

A: Select 9FG108EGLFT (Cut Tape & Digi-Reel® packaging) for automated pick-and-place assembly operations. Select 9FG108EGLF (Tube packaging) for manual assembly or lower-volume applications.