ICS557GI-06T Equivalent & Substitute Parts

Part Overview

The ICS557GI-06T 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 ICS557GI-06T is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The availability of active alternative models ensures continuity in component sourcing and system reliability.

Substiute Parts

ICS557GI-06T

Renesas Electronics CorporationIn Stock: 1041ICS557GI-06T Datasheet

Current PartRFQ

557GI-06LFT

Renesas Electronics CorporationIn Stock: 3487557GI-06LFT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS557GI-06T is determined by strict equivalence across the following critical parameters:

• Functional Equivalence: Input/Output signal types (HCSL, LVDS), circuit count (1), and input:output ratio (2:4)
• Electrical Specifications: Maximum frequency (200MHz), supply voltage range (3.135V ~ 3.465V), and operating temperature range (-40°C ~ 85°C)
• Physical Compatibility: Package type (20-TSSOP), mounting method (Surface Mount), and physical dimensions (0.173", 4.40mm Width)
• Application Domain: Primary purpose for PCI Express (PCIe) applications

The substitute part 557GI-06LFT meets all these criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 557GI-06LFT is a direct functional equivalent to the ICS557GI-06T with identical electrical and physical specifications. Selection between these parts should be based on the following factors:

Product Status: The ICS557GI-06T is obsolete, while the 557GI-06LFT maintains active product status. For new designs and ongoing production, the 557GI-06LFT is the appropriate selection.

Regulatory Compliance: The 557GI-06LFT is ROHS3 compliant, whereas the ICS557GI-06T is RoHS non-compliant. Applications subject to RoHS directives or customer requirements for compliant components require the 557GI-06LFT.

Packaging Format: The ICS557GI-06T is supplied in tube packaging, while the 557GI-06LFT is available in Tape & Reel (TR) format. High-volume manufacturing and automated assembly processes typically require Tape & Reel packaging.

Inventory Availability: The 557GI-06LFT has significantly higher inventory availability (3435 Pcs) compared to the ICS557GI-06T (968 Pcs), supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Are the ICS557GI-06T and 557GI-06LFT electrically interchangeable?

A: Yes. Both parts are manufactured by Renesas Electronics Corporation and share identical electrical specifications including frequency (200MHz), supply voltage (3.135V ~ 3.465V), operating temperature range (-40°C ~ 85°C), input/output signal types (HCSL, LVDS), and circuit configuration (1:4 buffer ratio).

Q: Can the 557GI-06LFT be used as a direct replacement in existing designs using the ICS557GI-06T?

A: Yes. The 557GI-06LFT is a direct substitute with identical package type (20-TSSOP), mounting method (Surface Mount), and physical dimensions. No PCB layout modifications are required.

Q: What is the significance of the packaging format difference between these parts?

A: The ICS557GI-06T is supplied in tube packaging, suitable for manual assembly and low-volume applications. The 557GI-06LFT is supplied in Tape & Reel (TR) format, optimized for automated pick-and-place assembly in high-volume manufacturing environments.

Q: Why is RoHS compliance important for selecting between these parts?

A: RoHS (Restriction of Hazardous Substances) compliance is a regulatory requirement in many markets and is often mandated by customers and end-use applications. The 557GI-06LFT is ROHS3 compliant, while the ICS557GI-06T is non-compliant. New designs should specify the 557GI-06LFT to meet current regulatory standards.

Q: Are there any functional differences between the ICS557GI-06T and 557GI-06LFT?

A: No functional differences exist. Both parts perform identically as PCI Express (PCIe) fanout buffers with the same signal distribution and buffering capabilities.

Q: What does the obsolete status of the ICS557GI-06T mean for component sourcing?

A: Obsolete status indicates that the manufacturer has discontinued production of the ICS557GI-06T. Existing inventory may be available through distributors, but long-term availability is not guaranteed. The 557GI-06LFT, with active product status, is the recommended choice for new designs and future production requirements.