ICS9FG104DGLFT Equivalent & Substitute Parts

Part Overview

The ICS9FG104DGLFT is a frequency timing generator IC manufactured by Renesas Electronics Corporation, designed for Intel CPU Server, PCI Express (PCIe), and SATA applications. This device functions as a spread spectrum clock generator with integrated phase-locked loop (PLL) technology, delivering a single 400MHz HCSL output from clock or crystal input sources.

The ICS9FG104DGLFT is classified as obsolete. Locating equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for legacy system maintenance, repairs, and production support.

Substiute Parts

ICS9FG104DGLFT

Renesas Electronics CorporationIn Stock: 2201ICS9FG104DGLFT Datasheet

Current PartRFQ

9FG104EGLFT

Renesas Electronics CorporationIn Stock: 101899FG104EGLFT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS9FG104DGLFT is determined by strict equivalence across the following critical parameters:

• Package / Case: 28-TSSOP form factor with identical 0.173" width and 4.40mm dimensions
• Frequency Output: 400MHz maximum operating frequency
• Output Configuration: Single HCSL output
• Input Compatibility: Clock or crystal input support
• Supply Voltage Range: 3.135V ~ 3.465V operation
• Operating Temperature Range: 0°C ~ 70°C
• PLL Functionality: Integrated phase-locked loop required
• Input:Output Ratio: 1:5 frequency multiplication
• Differential Signaling: No differential input / Yes differential output

The substitute part 9FG104EGLFT meets all these electrical and mechanical parameters while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 9FG104EGLFT serves as a direct functional equivalent to the ICS9FG104DGLFT. Both parts share identical electrical specifications, package geometry, and operational characteristics across all critical parameters.

The primary distinction is product lifecycle status: the ICS9FG104DGLFT is obsolete, while the 9FG104EGLFT maintains active production status. The substitute part additionally carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for new designs and ongoing production support.

For applications requiring the ICS9FG104DGLFT, the 9FG104EGLFT provides equivalent performance with enhanced compliance posture and assured long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the 9FG104EGLFT directly replace the ICS9FG104DGLFT in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including package type, frequency output, supply voltage, operating temperature range, and signal characteristics. Direct substitution is supported without circuit modification.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 28-TSSOP package with identical 0.173" width and 4.40mm dimensions. Pinout and mechanical compatibility are fully maintained.

Q: What is the significance of the product status difference?

A: The ICS9FG104DGLFT is classified as obsolete, indicating discontinued production. The 9FG104EGLFT maintains active production status, ensuring reliable supply availability and support for both legacy system maintenance and new production requirements.

Q: Does the ROHS3 compliance of the 9FG104EGLFT affect compatibility?

A: No. ROHS3 compliance is an environmental and regulatory attribute that does not alter electrical performance or physical compatibility. It indicates the substitute part meets current environmental standards while maintaining full functional equivalence.

Q: Are the supply voltage and operating temperature ranges identical?

A: Yes. Both parts operate within 3.135V to 3.465V supply voltage and 0°C to 70°C temperature range. Thermal and electrical operating conditions are fully equivalent.