LE88246DLC Equivalent & Substitute Parts

Part Overview

The LE88246DLC is a telecom interface IC 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 support and new design implementations. The part is housed in an 80-LQFP package and supports dual-circuit telecom functionality.

Substiute Parts

LE88246DLC

Microchip TechnologyIn Stock: 9576LE88246DLC Datasheet

Current PartRFQ

ZL88701LDF1

Microchip TechnologyIn Stock: 2289ZL88701LDF1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE88246DLC is based on the following critical parameters:

• Interface Compatibility: Both parts must support PCM interface for telecommunications applications
• Manufacturer Continuity: Microchip Technology maintains the telecom interface product line
• Functional Equivalence: Telecom circuit functionality must be preserved
• Mounting Technology: Surface mount compatibility required
• Compliance Standards: ROHS3 compliance maintained across substitutes
• Package Consideration: While package form factors differ (80-LQFP vs. 64-QFN), the electrical interface and functional capability determine substitutability

The ZL88701LDF1 qualifies as a manufacturer-recommended substitute based on these parameters, despite differences in circuit count and package geometry.

Parameter Comparison

Engineering Selection Recommendations

The ZL88701LDF1 is the manufacturer-recommended substitute for the obsolete LE88246DLC. Selection of this substitute is supported by:

• Active Product Status: The ZL88701LDF1 maintains active production status, ensuring long-term availability and supply chain continuity
• Compliance Alignment: Both components maintain ROHS3 compliance and share identical ECCN and HTSUS classifications
• Functional Compatibility: PCM interface and telecom circuit functionality are preserved
• Improved Reliability: The substitute exhibits superior moisture sensitivity characteristics (MSL 1 vs. MSL 3), reducing handling and storage risk

Design integration requires evaluation of package geometry differences and circuit count reduction (2 circuits to 1 circuit) within the specific application context.

Frequently Asked Questions (FAQ)

Q: Why is the LE88246DLC considered obsolete? A: The LE88246DLC is classified as obsolete by Microchip Technology, indicating discontinued production and limited availability. The ZL88701LDF1 represents the active product line continuation for telecom interface applications.

Q: Can the ZL88701LDF1 directly replace the LE88246DLC in existing designs? A: Direct replacement requires PCB layout modification due to package differences (80-LQFP to 64-QFN). The reduction from 2 circuits to 1 circuit must be evaluated against application requirements.

Q: What are the key differences in packaging? A: The LE88246DLC uses an 80-pin LQFP package, while the ZL88701LDF1 uses a 64-pin QFN package with exposed pad. Both are surface-mount technologies but require different PCB footprints.

Q: Are there compliance or certification concerns with substitution? A: Both components maintain ROHS3 compliance and identical trade classification codes. No compliance barriers exist for substitution.

Q: What is the significance of the moisture sensitivity level difference? A: The ZL88701LDF1 has MSL 1 (unlimited shelf life) compared to the LE88246DLC MSL 3 (168-hour limit). This provides improved handling flexibility and reduced storage constraints.

Q: Is the ZL88701LDF1 the only available substitute? A: Based on provided data, ZL88701LDF1 is the manufacturer-recommended substitute. Evaluation of alternative sources should reference Microchip Technology's official product migration documentation.