Equivalent & Substitute Parts for Renesas 8516FYILF

Part Overview

The Renesas 8516FYILF is a Clock Fanout Buffer (Distribution) IC designed for high-speed clock distribution applications. This device features a 1:16 input-to-output ratio with a maximum frequency of 700 MHz and supports multiple input standards including HCSL, LVDS, LVHSTL, LVPECL, and SSTL, with LVDS output. The 8516FYILF is classified as obsolete, making identification of suitable substitute components essential for ongoing system design and maintenance requirements.

Substiute Parts

8516FYILF

RenesasIn Stock: 20738516FYILF Datasheet

Current PartRFQ

8P34S2108NLGI

Renesas Electronics CorporationIn Stock: 10778P34S2108NLGI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 8516FYILF requires evaluation based on the following critical parameters:

Functional Compatibility Criteria:

• Type: Fanout Buffer (Distribution) IC
• Differential Input and Output capability
• Output Standard: LVDS
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Surface Mount packaging format

Performance Considerations:

• Maximum frequency capability must meet or exceed application requirements
• Supply voltage range must be compatible with system power delivery
• Input standard support must accommodate existing signal sources

Compliance and Status:

• Product availability and active manufacturing status
• RoHS compliance requirements for target applications
• Moisture Sensitivity Level (MSL) for storage and handling

The 8P34S2108NLGI qualifies as a substitute based on shared functional architecture (Fanout Buffer with differential input/output), compatible operating temperature range, surface mount packaging, and active product status with improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 8516FYILF is classified as obsolete, limiting long-term availability and supply chain reliability. The 8P34S2108NLGI maintains active product status with ongoing manufacturing support from Renesas Electronics Corporation.

Compliance and Regulatory Requirements: The 8P34S2108NLGI provides ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for electronic components. The 8516FYILF is RoHS non-compliant with undefined REACH status, presenting potential regulatory constraints for new designs or applications subject to environmental compliance mandates.

Functional Capability: The 8P34S2108NLGI offers superior frequency performance (2 GHz maximum versus 700 MHz), providing headroom for high-speed clock distribution applications. Both devices maintain compatible operating temperature ranges and differential input/output architecture.

Supply Voltage Compatibility: The 8P34S2108NLGI operates at 1.71V ~ 1.89V supply voltage, differing from the 8516FYILF requirement of 3.135V ~ 3.465V. System power delivery architecture must accommodate this voltage differential.

Package Considerations: Both devices utilize 48-pin surface mount packages with identical 7x7 mm footprints. The 8P34S2108NLGI employs VFQFN packaging with exposed pad, while the 8516FYILF uses LQFP packaging. PCB layout modifications may be required to accommodate the exposed pad thermal management feature.

Frequently Asked Questions (FAQ)

Q: Can the 8P34S2108NLGI directly replace the 8516FYILF in existing designs?

A: Direct replacement requires evaluation of three critical factors: supply voltage compatibility (1.71V ~ 1.89V for the substitute versus 3.135V ~ 3.465V for the original), input standard support (the substitute supports LVCMOS, LVDS, and LVPECL versus the original's broader HCSL, LVDS, LVHSTL, LVPECL, and SSTL support), and PCB layout accommodation for the VFQFN exposed pad package format.

Q: What are the key differences in circuit configuration between these parts?

A: The 8516FYILF provides a single circuit with 1:16 input-to-output ratio, while the 8P34S2108NLGI features two circuits with 2:16 input-to-output ratio. This architectural difference affects clock distribution topology and may require system-level design modifications.

Q: Are there input standard compatibility concerns?

A: The 8516FYILF accepts HCSL, LVDS, LVHSTL, LVPECL, and SSTL input standards. The 8P34S2108NLGI supports LVCMOS, LVDS, and LVPECL. Applications utilizing HCSL, LVHSTL, or SSTL input signals require alternative substitutes or signal conditioning circuitry.

Q: How do the frequency specifications compare?

A: The 8516FYILF operates to 700 MHz maximum frequency, while the 8P34S2108NLGI supports 2 GHz. The substitute provides enhanced frequency capability suitable for higher-speed clock distribution applications.

Q: What packaging considerations apply to substitution?

A: Both devices use 48-pin surface mount packages with identical 7x7 mm footprints. The 8P34S2108NLGI includes an exposed pad for thermal management, requiring PCB design modifications including thermal via placement and copper area allocation beneath the package.

Q: Does the substitute meet current regulatory requirements?

A: The 8P34S2108NLGI is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The 8516FYILF is RoHS non-compliant, presenting constraints for applications subject to modern regulatory compliance requirements.

Q: What is the moisture sensitivity impact?

A: The 8P34S2108NLGI carries MSL 3 rating (168 hours), requiring controlled storage and handling procedures. The 8516FYILF lists MSL as not applicable. Component storage conditions and reflow process parameters must accommodate the substitute's moisture sensitivity classification.