PL620-88OC-R Equivalent & Substitute Parts

Part Overview

The PL620-88OC-R is a clock buffer IC manufactured by Microchip Technology, designed to operate at 65MHz with LVPECL output. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates with a 1:1 input-to-output ratio and supports differential output configuration, making it suitable for precision timing applications requiring low-voltage positive emitter-coupled logic signaling.

Substiute Parts

PL620-88OC-R

Microchip TechnologyIn Stock: 903PL620-88OC-R Datasheet

Current PartRFQ

83PN156DKILFT

Renesas Electronics CorporationIn Stock: 380183PN156DKILFT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PL620-88OC-R is based on the following critical parameters:

• Output configuration: LVPECL differential output capability
• Input source: Crystal input requirement
• Frequency range: Maximum operating frequency of 65MHz or higher
• Circuit count: Single circuit configuration
• Input-to-output ratio: 1:1 relationship
• Supply voltage compatibility: Operating range overlap with 2.25V ~ 3.63V
• Surface mount packaging: Compatibility with PCB assembly processes
• Environmental compliance: ROHS3 compliance and REACH unaffected status

The substitute part 83PN156DKILFT meets these criteria while offering enhanced specifications including higher maximum frequency (156.25MHz), extended operating temperature range (-40°C ~ 85°C), and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 83PN156DKILFT serves as a direct functional substitute for the obsolete PL620-88OC-R. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The substitute part is currently in active production status, providing supply chain continuity and long-term availability.

The 83PN156DKILFT operates within the supply voltage range of the original part (2.5V and 3.3V overlap with the 2.25V ~ 3.63V specification) and maintains identical output configuration (LVPECL differential) and input type (Crystal). The extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C) provides additional environmental flexibility for applications requiring broader temperature performance.

Package considerations require evaluation: the original part uses 16-TSSOP packaging while the substitute uses 10-VQFN Exposed Pad packaging. PCB layout modifications will be necessary to accommodate the different package footprint and pin configuration.

Frequently Asked Questions (FAQ)

Q: Can the 83PN156DKILFT directly replace the PL620-88OC-R without circuit modifications?

A: The 83PN156DKILFT maintains functional equivalence in output type (LVPECL), input type (Crystal), and 1:1 ratio configuration. However, the different package types (16-TSSOP versus 10-VQFN Exposed Pad) require PCB layout redesign and potential schematic adjustments for pin mapping.

Q: What are the key compatibility factors for this substitution?

A: Critical compatibility factors include LVPECL output capability, Crystal input requirement, 1:1 input-to-output ratio, single circuit configuration, and surface mount assembly compatibility. Both parts meet these requirements.

Q: How do the supply voltage specifications compare?

A: The PL620-88OC-R operates at 2.25V ~ 3.63V while the 83PN156DKILFT operates at 2.5V and 3.3V. The 3.3V specification of the substitute falls within the original part's range, ensuring compatibility in standard 3.3V supply applications.

Q: What is the significance of the different Moisture Sensitivity Levels?

A: The PL620-88OC-R has MSL 1 (Unlimited) while the 83PN156DKILFT has MSL 3 (168 Hours). MSL 3 requires controlled storage conditions and has a 168-hour floor life after moisture exposure. This affects component handling, storage, and assembly procedures.

Q: Why is the substitute part's maximum frequency higher than the original?

A: The 83PN156DKILFT operates at 156.25MHz maximum frequency compared to the PL620-88OC-R's 65MHz. This higher frequency capability provides design flexibility for applications requiring higher clock speeds while maintaining backward compatibility with lower frequency requirements.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent between the original and substitute components.