ICS9FG108DFILF Equivalent & Substitute Parts

Part Overview

The ICS9FG108DFILF 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 ratio. The part is classified as Obsolete, making identification of active equivalent substitutes essential for ongoing system support and new design implementations.

Substiute Parts

ICS9FG108DFILF

Renesas Electronics CorporationIn Stock: 1096ICS9FG108DFILF Datasheet

Current PartRFQ

9FG108EFILF

Renesas Electronics CorporationIn Stock: 42499FG108EFILF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ICS9FG108DFILF has one manufacturer-recommended equivalent: 9FG108EFILF. This substitution is valid based on the following critical parameters that remain identical between both parts:

• Maximum Frequency: 400MHz
• Output Type: HCSL
• Input-to-Output Ratio: 1:9
• Number of Circuits: 1
• Supply Voltage Range: 3.135V ~ 3.465V
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 48-BSSOP (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Primary Application: Intel CPU Server, PCI Express (PCIe), SATA

The 9FG108EFILF represents an active product variant from the same manufacturer with identical electrical and mechanical specifications, making it a direct functional replacement for the obsolete ICS9FG108DFILF.

Parameter Comparison

Engineering Selection Recommendations

The 9FG108EFILF is the direct substitute for the obsolete ICS9FG108DFILF. Selection of the active variant is justified by:

• Identical electrical specifications across all critical parameters: frequency, voltage, temperature range, and output characteristics
• Identical mechanical compatibility: same package, case dimensions, and mounting type
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance of the substitute part meets current regulatory requirements
• Both parts maintain REACH Unaffected and EAR99 export classification status

The only parameter difference is Moisture Sensitivity Level (MSL 1 versus MSL 3), which reflects manufacturing process updates in the active variant and does not affect functional compatibility in standard operating environments.

Frequently Asked Questions (FAQ)

Q: Can the 9FG108EFILF directly replace the ICS9FG108DFILF without PCB modifications?

A: Yes. Both parts share identical package dimensions (48-BSSOP, 0.295" × 7.50mm width), pinout, and mounting type (Surface Mount). No PCB layout changes are required.

Q: Are the electrical specifications identical between these parts?

A: Yes. Maximum frequency (400MHz), supply voltage range (3.135V ~ 3.465V), operating temperature range (-40°C ~ 85°C), output type (HCSL), and input-to-output ratio (1:9) are identical.

Q: What is the significance of the different MSL ratings?

A: The ICS9FG108DFILF has MSL 1 (Unlimited moisture exposure), while the 9FG108EFILF has MSL 3 (168 hours maximum). This reflects manufacturing process updates. For standard assembly and storage conditions, this difference does not impact functional performance.

Q: Is the 9FG108EFILF suitable for Intel CPU Server, PCI Express, and SATA applications?

A: Yes. The substitute part is specified for identical applications: Intel CPU Server, PCI Express (PCIe), and SATA clock generation.

Q: What compliance certifications apply to the substitute part?

A: The 9FG108EFILF is ROHS3 compliant and maintains REACH Unaffected status. Both parts carry EAR99 export classification.