ICS853031AYLF Equivalent & Substitute Parts

Part Overview

The ICS853031AYLF is a Clock Fanout Buffer (Distribution) Multiplexer IC manufactured by Renesas Electronics Corporation, designed for 2:9 clock distribution at 1.6 GHz. This part is classified as Obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. The 32-LQFP package and differential input/output capabilities position this device for high-speed timing applications requiring multiple clock outputs from dual inputs.

Substiute Parts

ICS853031AYLF

Renesas Electronics CorporationIn Stock: 1436ICS853031AYLF Datasheet

Current PartRFQ

8531AY-01LF

Renesas Electronics CorporationIn Stock: 10188531AY-01LF Datasheet

DirectRFQ

SY89809ALTZ

Microchip TechnologyIn Stock: 2274SY89809ALTZ Datasheet

MFR RecommendedRFQ

SY898531LTZ

Microchip TechnologyIn Stock: 2106SY898531LTZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICS853031AYLF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Ratio - Input:Output: 2:9 (all substitutes maintain this configuration)
• Package / Case: 32-LQFP (7x7) (all substitutes use identical package)
• Mounting Type: Surface Mount (all substitutes are surface mount)
• Differential Input/Output: Yes/Yes (all substitutes support differential signaling)

Frequency Considerations: The ICS853031AYLF operates at 1.6 GHz maximum. Substitute parts operate at lower maximum frequencies (500 MHz to 750 MHz), making them suitable for applications not requiring the full 1.6 GHz bandwidth.

Signal Format Compatibility: The ICS853031AYLF accepts multiple input formats (CML, HCSL, LVDS, LVHSTL, LVPECL, SSTL) and outputs ECL or LVPECL. Substitute parts support overlapping input/output formats, with SY89809ALTZ supporting HSTL/LVPECL and SY898531LTZ supporting HCSL/LVDS/LVHSTL/LVPECL/SSTL input with LVPECL output.

Supply Voltage Range: The ICS853031AYLF operates from 2.375V to 3.465V. Substitute parts operate within narrower ranges (3V to 3.6V for SY89809ALTZ; 3.135V to 3.465V for 8531AY-01LF and SY898531LTZ), requiring verification of system supply voltage compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status Priority: SY89809ALTZ and SY898531LTZ are both manufactured by Microchip Technology and carry Active product status, ensuring long-term availability and manufacturing support. Both parts are ROHS3 Compliant with MSL 1 rating, providing superior moisture handling compared to the obsolete Renesas parts.

For Maximum Frequency Requirement (up to 1.6 GHz): No substitute part matches the 1.6 GHz maximum frequency of the ICS853031AYLF. Applications requiring frequencies above 750 MHz cannot use these substitutes without performance degradation.

For Frequency Range 500 MHz to 750 MHz: SY89809ALTZ supports up to 750 MHz and is recommended for applications in this frequency range. SY898531LTZ and 8531AY-01LF both support up to 500 MHz and are suitable for lower-frequency applications.

For Temperature Range -40°C to 85°C: SY89809ALTZ is the only substitute supporting the full -40°C to 85°C operating range of the original part. Other substitutes operate from 0°C to 70°C or 0°C to 85°C, limiting use in extended temperature applications.

For Supply Voltage 2.375V to 3.0V: The ICS853031AYLF operates at 2.375V minimum. All substitute parts require minimum 3V or 3.135V supply voltage, making them incompatible with systems operating below 3V.

Frequently Asked Questions (FAQ)

Q: Can SY89809ALTZ directly replace ICS853031AYLF in all applications?

A: SY89809ALTZ maintains the 2:9 ratio, differential input/output capability, and 32-TQFP package. However, it operates at maximum 750 MHz versus 1.6 GHz for the original part. Applications requiring frequencies above 750 MHz cannot use this substitute. Additionally, SY89809ALTZ accepts only HSTL and LVPECL inputs and outputs HSTL, whereas the ICS853031AYLF supports broader input/output format compatibility.

Q: What is the difference between 8531AY-01LF and SY898531LTZ?

A: Both parts support 2:9 distribution at 500 MHz maximum frequency with identical supply voltage range (3.135V to 3.465V) and operating temperature (0°C to 70°C). The primary difference is product status: 8531AY-01LF is Obsolete (Renesas), while SY898531LTZ is Active (Microchip). SY898531LTZ offers superior moisture handling (MSL 1 versus MSL 3) and ROHS3 compliance, making it preferable for new designs.

Q: Are the 32-LQFP and 32-TQFP packages interchangeable?

A: The 32-LQFP and 32-TQFP packages are functionally equivalent with identical 7x7 mm dimensions and pin configurations. Both are surface mount packages suitable for the same PCB layouts. Substitution between these package designations does not require PCB redesign.

Q: Which substitute part is recommended for new designs?

A: For new designs, Microchip Technology parts (SY89809ALTZ or SY898531LTZ) are recommended due to Active product status, ensuring long-term availability and manufacturing support. Selection between these two depends on frequency requirements: SY89809ALTZ for up to 750 MHz applications, SY898531LTZ for up to 500 MHz applications.

Q: Can these parts operate at supply voltages below 3V?

A: No. All substitute parts require minimum supply voltage of 3V (SY89809ALTZ) or 3.135V (8531AY-01LF and SY898531LTZ). The original ICS853031AYLF operates at 2.375V minimum. Systems with supply voltages between 2.375V and 3V cannot use these substitutes.

Q: What input signal formats does each substitute support?

A: SY89809ALTZ supports HSTL and LVPECL inputs. SY898531LTZ and 8531AY-01LF support HCSL, LVDS, LVHSTL, LVPECL, and SSTL inputs. The original ICS853031AYLF supports all six formats (CML, HCSL, LVDS, LVHSTL, LVPECL, SSTL). Verify that your input signal format is supported by the selected substitute before implementation.