LE89336QVCT Equivalent & Substitute Parts

Part Overview

The LE89336QVCT is a telecom interface IC manufactured by Microchip Technology in a 48-LQFP surface mount package. This component functions as a telecommunications interface circuit designed for PCM applications. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

LE89336QVCT

Microchip TechnologyIn Stock: 1019LE89336QVCT Datasheet

Current PartRFQ

LE9651PQC

Microchip TechnologyIn Stock: 882LE9651PQC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE89336QVCT is determined by the following critical parameters:

• Manufacturer: Microchip Technology (same manufacturer ensures design continuity and support)
• Category: Interface (maintains functional classification)
• Number of Circuits: 1 (single circuit requirement)
• Mounting Type: Surface Mount (PCB assembly compatibility)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 3 (168 Hours) (handling and storage specifications)
• ECCN/HTSUS Classification: EAR99 / 8542.39.0001 (trade compliance alignment)

The LE9651PQC qualifies as a manufacturer-recommended substitute based on these parameters. While the interface type transitions from PCM to 4-Wire SLIC architecture and the package changes from 48-LQFP to 48-QFN, both components share the same manufacturer, circuit count, mounting methodology, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LE9651PQC is the manufacturer-recommended substitute for the obsolete LE89336QVCT. Selection of this substitute is supported by:

• Active Product Status: The LE9651PQC maintains active production status, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: Both components maintain ROHS3 compliance and identical ECCN/HTSUS classifications, satisfying regulatory requirements without modification.
• Manufacturer Support: Microchip Technology designates the LE9651PQC as the direct replacement, providing engineering documentation and technical support.
• Identical Handling Requirements: Matching Moisture Sensitivity Level (MSL 3, 168 Hours) ensures compatibility with existing storage, handling, and assembly procedures.

Frequently Asked Questions (FAQ)

Q: Why is the LE89336QVCT classified as obsolete? A: The LE89336QVCT has reached end-of-life status within Microchip Technology's product portfolio. The LE9651PQC represents the current-generation replacement offering enhanced functionality and active manufacturing support.

Q: What is the primary difference between the LE89336QVCT and LE9651PQC? A: The LE89336QVCT operates on a PCM interface architecture in a 48-LQFP package. The LE9651PQC implements a 4-Wire Subscriber Line Interface Concept (SLIC) in a 48-QFN (7x7) package, providing updated interface technology while maintaining single-circuit configuration and surface mount compatibility.

Q: Are there package compatibility considerations? A: Yes. The LE89336QVCT uses a 48-LQFP package, while the LE9651PQC uses a 48-QFN (7x7) package. PCB layout modifications are required to accommodate the different package footprint. Pin assignment verification is necessary during design transition.

Q: Do both components share the same compliance certifications? A: Both components are ROHS3 compliant with identical Moisture Sensitivity Level (MSL 3, 168 Hours) ratings and ECCN/HTSUS classifications (EAR99 / 8542.39.0001). No compliance-related design changes are required.

Q: Is the LE9651PQC suitable for new designs? A: The LE9651PQC is classified as an active product with current manufacturing support, making it the appropriate choice for new design implementations requiring telecom interface functionality.