ICS9LPRS525AFLF Equivalent & Substitute Parts

Part Overview

The ICS9LPRS525AFLF is an Intel CPU and PCI Express (PCIe) Clock/Frequency Synthesizer IC manufactured by Renesas Electronics Corporation. This device generates a 400MHz clock output from a crystal input, designed for legacy Intel CPU and PCIe applications. The part is classified as obsolete, making equivalent substitute parts necessary for system maintenance, repair, and legacy platform support where original inventory is depleted.

Substiute Parts

ICS9LPRS525AFLF

Renesas Electronics CorporationIn Stock: 830ICS9LPRS525AFLF Datasheet

Current PartRFQ

9LPRS525AGLF

Renesas Electronics CorporationIn Stock: 12379LPRS525AGLF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS9LPRS525AFLF is determined by strict equivalence across the following critical parameters:

• Manufacturer: Renesas Electronics Corporation (same manufacturer ensures design compatibility)
• Main Purpose: Intel CPU, PCI Express (PCIe) (functional application match)
• Frequency - Max: 400MHz (output frequency specification)
• Number of Outputs: 1 (single clock output)
• Input Type: Crystal (input source compatibility)
• Output Type: Clock (output signal type)
• Ratio - Input:Output: 1:19 (frequency multiplication ratio)
• Voltage - Supply: 3.135V ~ 3.465V (power supply compatibility)
• Operating Temperature: 0°C ~ 70°C (thermal operating range)
• PLL: Yes (phase-locked loop functionality)
• Mounting Type: Surface Mount (PCB assembly compatibility)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (moisture handling equivalence)
• REACH Status: REACH Unaffected (regulatory compliance)

The substitute part 9LPRS525AGLF meets all these criteria. The primary difference is the package type: the main part uses 56-BSSOP (0.295", 7.50mm Width), while the substitute uses 56-TFSOP (0.240", 6.10mm Width). Both are 56-pin surface mount packages with compatible pinouts for this application.

Parameter Comparison

Engineering Selection Recommendations

The 9LPRS525AGLF is a direct functional equivalent to the ICS9LPRS525AFLF. Selection between these parts should be based on the following factors:

Product Status: The main part (ICS9LPRS525AFLF) is obsolete, while the substitute (9LPRS525AGLF) is active. For new designs or ongoing production, the active substitute is the appropriate choice.

Compliance: The substitute part carries ROHS3 compliance certification, whereas the main part does not specify RoHS status. Both parts maintain REACH Unaffected status and EAR99 export classification.

Package Considerations: Both parts use 56-pin surface mount packages with compatible pinouts. The substitute uses a narrower package footprint (56-TFSOP, 6.10mm width) compared to the main part (56-BSSOP, 7.50mm width). PCB layout modifications may be required if the original design was optimized for the wider package.

Inventory and Availability: The substitute part has higher current inventory availability (1161 Pcs) compared to the main part (770 Pcs), and is supplied in tube packaging for production environments.

Frequently Asked Questions (FAQ)

Q: Can the 9LPRS525AGLF directly replace the ICS9LPRS525AFLF in existing designs?

A: Yes, the 9LPRS525AGLF is functionally equivalent across all critical electrical parameters: frequency, voltage supply, operating temperature, input/output specifications, and PLL functionality. Both parts are manufactured by Renesas Electronics Corporation with identical specifications for Intel CPU and PCIe clock synthesis applications.

Q: What is the difference between the 56-BSSOP and 56-TFSOP packages?

A: Both are 56-pin surface mount packages. The primary difference is package width: 56-BSSOP measures 7.50mm width, while 56-TFSOP measures 6.10mm width. The pinout is compatible between these package types for this device. PCB footprint adjustments may be necessary depending on the original design layout.

Q: Why is the main part listed as obsolete?

A: The ICS9LPRS525AFLF is classified as obsolete by the manufacturer, indicating it is no longer in active production. The 9LPRS525AGLF is the active equivalent part and is the recommended selection for ongoing applications.

Q: Are there any compliance differences between these parts?

A: The substitute part (9LPRS525AGLF) is certified ROHS3 compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. For applications requiring RoHS compliance, the substitute part is the appropriate selection.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have MSL 1 (Unlimited), indicating unlimited shelf life without moisture sensitivity concerns. Standard surface mount handling procedures apply.