LE9500CBJC Equivalent & Substitute Parts

Part Overview

The LE9500CBJC is a Subscriber Line Interface Concept (SLIC) telecom IC manufactured by Microchip Technology, designed for telecom interface applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The LE9500CBJC operates at 3.3V supply voltage with a 28-PLCC surface mount package configuration.

Substiute Parts

LE9500CBJC

Microchip TechnologyIn Stock: 7695LE9500CBJC Datasheet

Current PartRFQ

LE9541CUQC

Microchip TechnologyIn Stock: 63162LE9541CUQC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE9500CBJC is determined by the following critical parameters:

• Functional Equivalence: Both parts must implement Subscriber Line Interface Concept (SLIC) functionality
• Supply Voltage Compatibility: 3.3V operation requirement
• Manufacturer Continuity: Microchip Technology as the original manufacturer
• Surface Mount Technology: Compatibility with surface mount assembly processes
• Compliance Standards: ROHS3 compliance and EAR99 export classification

The LE9541CUQC qualifies as a substitute based on matching functional requirements, supply voltage, manufacturer, mounting type, and compliance certifications. Interface type transitions from parallel to serial, and package format changes from 28-PLCC to 40-QFN, reflecting design evolution in SLIC technology.

Parameter Comparison

Engineering Selection Recommendations

The LE9541CUQC is the designated substitute for the obsolete LE9500CBJC. Selection is based on:

• Product Status: LE9541CUQC maintains active production status, ensuring long-term availability and supply chain continuity
• Compliance Alignment: Both components maintain ROHS3 compliance and EAR99 export classification
• Functional Continuity: Both implement SLIC functionality at 3.3V supply voltage with single-circuit configuration
• Manufacturer Support: Microchip Technology continues to support the LE9541CUQC line with active inventory and technical resources

Design integration requires accommodation of interface protocol changes (parallel to serial) and package footprint modifications (28-PLCC to 40-QFN).

Frequently Asked Questions (FAQ)

Q: Can the LE9541CUQC directly replace the LE9500CBJC without design modifications?

A: Direct pin-for-pin replacement is not possible. The LE9541CUQC uses a 40-QFN package versus the 28-PLCC package of the LE9500CBJC, and the interface protocol changes from parallel to serial. PCB layout and firmware modifications are required.

Q: What are the key differences between these two SLIC components?

A: Primary differences include package format (28-PLCC versus 40-QFN), interface protocol (parallel versus serial), and product status (obsolete versus active). Both maintain 3.3V supply voltage and ROHS3 compliance.

Q: Is the LE9541CUQC available in the same packaging as the LE9500CBJC?

A: No. The LE9541CUQC is supplied in 40-QFN packaging with tray packaging option. The LE9500CBJC used 28-PLCC packaging. Different PCB footprints and assembly processes apply.

Q: What is the moisture sensitivity difference between these parts?

A: The LE9500CBJC has MSL 1 (unlimited moisture sensitivity protection), while the LE9541CUQC has MSL 3 (168-hour moisture sensitivity protection). The LE9541CUQC requires more controlled storage and handling conditions.

Q: Are both components RoHS compliant?

A: Yes. Both the LE9500CBJC and LE9541CUQC are ROHS3 compliant and carry EAR99 export classification.