ICS557G-06 Equivalent & Substitute Parts

Part Overview

The ICS557G-06 is a PCI Express (PCIe) Fanout Buffer (Distribution) and Multiplexer IC manufactured by Renesas Electronics Corporation. This clock/timing component functions as a 1:4 HCSL buffer with a maximum frequency of 200MHz, designed for PCIe applications requiring signal distribution and buffering. The ICS557G-06 is classified as obsolete, making identification of active substitute parts essential for ongoing system design and component procurement.

Substiute Parts

ICS557G-06

Renesas Electronics CorporationIn Stock: 789ICS557G-06 Datasheet

Current PartRFQ

557G-06LF

Renesas Electronics CorporationIn Stock: 2289557G-06LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS557G-06 is determined by strict equivalence across the following critical parameters:

• Functional Architecture: 1:4 fanout buffer configuration with 2:4 input:output ratio
• Signal Interface: HCSL and LVDS input/output compatibility
• Frequency Specification: 200MHz maximum operating frequency
• Differential Signaling: Differential input and output requirements
• Supply Voltage Range: 3.135V ~ 3.465V operating range
• Package Form Factor: 20-TSSOP surface mount package (0.173", 4.40mm Width)
• Thermal Operating Range: 0°C ~ 70°C
• Moisture Sensitivity: MSL 1 (Unlimited)

The substitute part 557G-06LF meets all these parameters identically, with the primary distinction being product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 557G-06LF is the direct functional equivalent of the ICS557G-06 across all electrical and mechanical parameters. Selection between these parts is determined by regulatory and procurement requirements:

ICS557G-06: Obsolete status indicates end-of-life designation. This part number should be used only for legacy system maintenance or repair where existing inventory is available. New designs should not incorporate this part number.

557G-06LF: Active product status with ROHS3 compliance makes this the appropriate selection for new designs and ongoing procurement. The tube packaging format supports standard manufacturing workflows. Higher inventory availability (2220 Pcs) compared to the obsolete variant (705 Pcs) ensures supply chain continuity.

Both parts carry identical REACH Unaffected and EAR99 ECCN classifications, indicating equivalent regulatory standing for export and environmental compliance purposes.

Frequently Asked Questions (FAQ)

Q: Can 557G-06LF directly replace ICS557G-06 in existing designs?

A: Yes. The 557G-06LF is electrically and mechanically identical to the ICS557G-06. All functional parameters, signal interfaces, frequency specifications, supply voltage ranges, and package dimensions are equivalent. Direct substitution is supported without circuit modification.

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

A: ICS557G-06 is classified as obsolete, indicating Renesas has discontinued active manufacturing and support. The 557G-06LF maintains active product status with ongoing manufacturing support. For new designs and long-term procurement, the active part number is the appropriate selection.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance status reflects manufacturing process standards. The ICS557G-06 is RoHS non-compliant, while 557G-06LF is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the 557G-06LF is the required selection. Both parts are REACH Unaffected.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 20-TSSOP package with identical dimensions of 0.173" width and 4.40mm overall width. PCB layout and footprints are interchangeable.

Q: What is the difference between the packaging formats?

A: The ICS557G-06 packaging format is not specified in available data. The 557G-06LF is supplied in tube packaging, which is standard for surface mount components and compatible with automated assembly equipment.

Q: Are there any frequency or signal integrity differences?

A: No. Both parts specify identical maximum frequency of 200MHz and support the same HCSL and LVDS signal interfaces with differential input and output configurations. Signal integrity characteristics are equivalent.

Q: What supply voltage range applies to both parts?

A: Both parts operate within the identical supply voltage range of 3.135V ~ 3.465V. Power supply design and decoupling requirements are equivalent.