LE88231DLC Equivalent & Substitute Parts

Part Overview

The LE88231DLC is a telecom interface integrated circuit manufactured by Microchip Technology, designed for PCM-based telecommunications applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The LE88231DLC operates as a 2-circuit telecom interface in a 80-LQFP surface mount package, serving critical signal processing functions in legacy telecom systems.

Substiute Parts

LE88231DLC

Microchip TechnologyIn Stock: 1940LE88231DLC Datasheet

Current PartRFQ

LE9632RQC

Microchip TechnologyIn Stock: 1000277LE9632RQC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE88231DLC is determined by the following critical parameters:

• Manufacturer: Microchip Technology (primary source for compatible telecom interface circuits)
• Category: Interface (functional classification for telecom signal processing)
• Function: Telecom Circuit with PCM interface capability
• Number of Circuits: 2-circuit configuration
• Compliance Standards: ROHS3 Compliant, REACH Unaffected, MSL 3 rating

The substitute part LE9632RQC maintains functional equivalence through identical manufacturer sourcing, telecom interface category, PCM protocol support, and dual-circuit architecture. While the package format differs (53QFN versus 80-LQFP), the electrical and functional specifications remain compatible for system-level integration.

Parameter Comparison

Engineering Selection Recommendations

The LE9632RQC serves as the primary substitute for the obsolete LE88231DLC based on the following engineering criteria:

Product Status Alignment: The LE9632RQC maintains active production status with Microchip Technology, ensuring long-term availability and supply chain continuity compared to the obsolete LE88231DLC.

Compliance Equivalence: Both components maintain identical ROHS3 compliance, REACH unaffected status, and MSL 3 moisture sensitivity ratings, satisfying regulatory and environmental requirements for telecommunications applications.

Functional Compatibility: Both parts operate as 2-circuit telecom interface devices with PCM protocol support, maintaining electrical and functional equivalence for system integration.

Package Consideration: The transition from 80-LQFP to 53QFN packaging requires PCB layout modification and component footprint redesign. This change is necessary to accommodate the active substitute part and should be evaluated during design revision cycles.

Frequently Asked Questions (FAQ)

Q: Can the LE9632RQC directly replace the LE88231DLC without PCB modifications?

A: No. The LE9632RQC uses a 53QFN package while the LE88231DLC uses an 80-LQFP package. PCB layout and component footprint redesign is required for physical and electrical integration.

Q: Are the electrical specifications identical between these two parts?

A: Both components function as 2-circuit PCM telecom interface devices manufactured by Microchip Technology. Detailed electrical specifications should be cross-referenced with the respective component datasheets to confirm pin-level compatibility and signal characteristics.

Q: What is the significance of the product status change from Obsolete to Active?

A: The LE9632RQC's active production status ensures continued availability, technical support, and supply chain reliability. The LE88231DLC's obsolete status indicates discontinued manufacturing and limited future availability.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and carry identical MSL 3 (168 Hours) moisture sensitivity ratings, meeting equivalent environmental and regulatory requirements.

Q: What inventory considerations apply to these parts?

A: The LE88231DLC has 1908 pieces available as new original stock. The LE9632RQC has significantly higher inventory availability at 1000199 pieces, supporting both immediate requirements and long-term supply security.