LE89336QVC Equivalent & Substitute Parts

Part Overview

The LE89336QVC is a telecom interface IC manufactured by Microchip Technology, designed for telecommunications applications in a 48-LQFP surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The part operates as a PCM interface circuit with single-circuit configuration, typical of legacy telecom interface solutions.

Substiute Parts

LE89336QVC

Microchip TechnologyIn Stock: 2564LE89336QVC Datasheet

Current PartRFQ

LE9651PQC

Microchip TechnologyIn Stock: 882LE9651PQC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LE9651PQC serves as the manufacturer-recommended substitute for the LE89336QVC. Substitution eligibility is determined by the following critical parameters:

• Manufacturer: Both parts are manufactured by Microchip Technology, ensuring design continuity and support consistency
• Category: Both classified as Interface components for telecom applications
• Number of Circuits: Both contain single-circuit configurations
• Mounting Type: Both are surface mount devices
• RoHS Compliance: Both meet ROHS3 requirements
• Moisture Sensitivity Level: Both rated at MSL 3 (168 Hours)
• ECCN Classification: Both classified as EAR99
• HTSUS Code: Both share the same tariff classification (8542.39.0001)

The primary difference lies in package format (48-LQFP versus 48-QFN) and functional enhancement (PCM interface versus SLIC 4-Wire interface), with the substitute offering active product status and specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The LE9651PQC is the manufacturer-designated substitute for the obsolete LE89336QVC. Selection of this substitute is supported by:

• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical ECCN/HTSUS classifications, ensuring no regulatory barriers to substitution
• Active Product Status: The LE9651PQC maintains active product status with documented inventory availability, providing long-term supply chain stability compared to the obsolete LE89336QVC
• Manufacturer Support: Direct manufacturer recommendation ensures design validation and technical support continuity
• Handling Requirements: Identical MSL ratings (3, 168 Hours) maintain equivalent moisture sensitivity handling protocols

Package format transition from 48-LQFP to 48-QFN (7x7) requires PCB layout modification. Interface specification change from PCM to 4-Wire SLIC requires functional verification against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the LE9651PQC directly replace the LE89336QVC without PCB modifications?

A: No. The package format differs (48-LQFP versus 48-QFN 7x7), requiring PCB layout redesign. Pin-to-pin compatibility cannot be assumed across different package geometries.

Q: What is the functional difference between PCM and 4-Wire SLIC interfaces?

A: PCM (Pulse Code Modulation) and 4-Wire SLIC (Subscriber Line Interface Concept) represent different telecom interface standards. The LE9651PQC implements SLIC functionality, which may differ from the original PCM implementation in the LE89336QVC. System-level functional compatibility must be verified.

Q: Are the electrical supply parameters compatible?

A: The LE89336QVC does not specify voltage or current supply parameters in the provided data. The LE9651PQC operates at 3.135V ~ 3.465V with 25mA supply current. Compatibility assessment requires the original LE89336QVC electrical specifications.

Q: Do both parts require identical handling procedures?

A: Yes. Both parts carry MSL 3 (168 Hours) moisture sensitivity ratings, requiring identical storage, handling, and reflow procedures per IPC standards.

Q: Is the LE9651PQC available in the same packaging format as the LE89336QVC?

A: No. The LE9651PQC is supplied in Tray packaging in 48-QFN format. The original LE89336QVC used 48-LQFP packaging. Packaging format change may affect assembly and handling procedures.