ICS570A Equivalent & Substitute Parts

Part Overview

The ICS570A is a Fanout Distribution, Spread Spectrum Clock Generator, Zero Delay Buffer IC manufactured by Renesas Electronics Corporation. This 8-SOIC surface mount device operates at a maximum frequency of 170MHz with a 1:2 input-to-output ratio and integrated PLL functionality. The ICS570A is classified as obsolete product status, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

ICS570A

Renesas Electronics CorporationIn Stock: 1449ICS570A Datasheet

Current PartRFQ

570BLFT

Renesas Electronics CorporationIn Stock: 3605570BLFT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS570A is determined by strict equivalence across the following critical parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) — identical physical footprint required for PCB compatibility
• Frequency - Max: 170MHz — maximum operating frequency specification
• Ratio - Input:Output: 1:2 — clock distribution ratio
• PLL: Yes — phase-locked loop functionality
• Input/Output Type: Clock input, CMOS output — signal interface specifications
• Number of Circuits: 1 — single circuit configuration
• Divider/Multiplier: Yes/Yes — frequency division and multiplication capability
• Differential - Input:Output: No/No — single-ended signal architecture
• Operating Temperature: 0°C ~ 70°C — temperature range
• Mounting Type: Surface Mount — assembly method

The 570BLFT qualifies as a manufacturer-recommended substitute based on functional equivalence across all core electrical and mechanical parameters. The primary distinction is supply voltage specification and product status.

Parameter Comparison

Engineering Selection Recommendations

The 570BLFT is the manufacturer-recommended substitute for the obsolete ICS570A. Both devices share identical functional specifications, package geometry, and frequency performance. The 570BLFT offers the advantage of active product status, ensuring continued availability and manufacturing support.

The critical design consideration is supply voltage: the ICS570A operates at 4.75V ~ 5.25V, while the 570BLFT operates at 3.15V ~ 3.45V. System power supply architecture must accommodate this voltage specification difference.

The 570BLFT achieves ROHS3 compliance, whereas the ICS570A is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the 570BLFT provides compliance alignment.

Frequently Asked Questions (FAQ)

Q: Can the 570BLFT directly replace the ICS570A in existing designs?

A: Functional replacement is possible due to identical package, frequency, and circuit specifications. However, the supply voltage difference (4.75V ~ 5.25V versus 3.15V ~ 3.45V) requires power supply circuit verification. PCB layout and footprint compatibility are identical.

Q: What is the primary reason for substitution?

A: The ICS570A is classified as obsolete. The 570BLFT is the active equivalent from the same manufacturer, ensuring design continuity and production availability.

Q: Are there compliance differences between these parts?

A: Yes. The 570BLFT is ROHS3 compliant, while the ICS570A is RoHS non-compliant. For applications requiring RoHS compliance, the 570BLFT satisfies regulatory requirements.

Q: Do both parts use the same 8-SOIC package?

A: Yes. Both the ICS570A and 570BLFT use the 8-SOIC (0.154", 3.90mm Width) package, providing identical PCB footprint compatibility.

Q: What is the critical electrical difference?

A: Supply voltage specification differs. The ICS570A requires 4.75V ~ 5.25V, while the 570BLFT requires 3.15V ~ 3.45V. System power supply design must align with the selected device specification.