LE88241DLCT Equivalent & Substitute Parts

Part Overview

The LE88241DLCT is a telecom interface IC manufactured by Microchip Technology, designed for PCM-based telecommunications applications. This 80-LQFP surface mount device functions as a telecom circuit with dual-circuit capability. The product is currently obsolete, making identification of suitable substitute components essential for system redesign, legacy product support, or component sourcing alternatives.

Substiute Parts

LE88241DLCT

Microchip TechnologyIn Stock: 2084LE88241DLCT Datasheet

Current PartRFQ

LE9622RQCT

Microchip TechnologyIn Stock: 1000200LE9622RQCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE88241DLCT is determined by the following critical parameters:

Primary Substitution Criteria:

• Manufacturer: Microchip Technology (same manufacturer ensures design continuity and support)
• Category: Interface (maintains functional classification)
• Function: Telecom Circuit or Subscriber Line Interface Concept (SLIC) (preserves core telecommunications functionality)
• Interface Support: PCM compatibility (essential for signal processing)
• Mounting Type: Surface Mount (maintains assembly compatibility)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)
• MSL Rating: 3 (168 Hours) (moisture handling consistency)

Secondary Considerations:

• Package type change from 80-LQFP to alternative packages is permissible if PCB layout redesign is acceptable
• Circuit count reduction from 2 to 1 circuit is acceptable if application requirements allow single-circuit operation
• Supply voltage specifications and operating temperature ranges must be evaluated against system requirements

The LE9622RQCT qualifies as a substitute based on shared manufacturer, interface category, PCM support, surface mount packaging, and identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

LE9622RQCT Substitution Viability:

The LE9622RQCT is the manufacturer-recommended substitute for the obsolete LE88241DLCT. Both components share identical RoHS3 compliance, MSL ratings, REACH status, and ECCN classifications, ensuring regulatory and supply chain continuity.

The LE9622RQCT offers active product status with documented long-term availability, eliminating obsolescence risk. The component supports PCM interface operation alongside additional SPI interface capability, providing functional flexibility for modern telecommunications applications.

Design Considerations:

Circuit count reduction from 2 to 1 requires application-level assessment. If dual-circuit functionality is mandatory, alternative solutions or dual-component implementation may be necessary. Package transition from 80-LQFP to 53-VFQFN requires PCB layout redesign and footprint modification. Supply voltage specifications (1.8V, 2.5V, 3.3V) and operating temperature range (-40°C ~ 85°C) must be validated against system power distribution and thermal requirements.

Frequently Asked Questions (FAQ)

Q: Why is the LE88241DLCT obsolete? A: The LE88241DLCT is classified as obsolete by Microchip Technology. The LE9622RQCT represents the active product line continuation for telecom interface applications.

Q: Can the LE9622RQCT directly replace the LE88241DLCT without PCB modification? A: No. The LE9622RQCT uses a 53-VFQFN package versus the 80-LQFP package of the original part. PCB footprint redesign is required. Additionally, the circuit count differs (1 versus 2 circuits), requiring application-level validation.

Q: What are the key electrical differences between these parts? A: The LE9622RQCT specifies supply voltages (1.8V, 2.5V, 3.3V) and operating temperature range (-40°C ~ 85°C), whereas the LE88241DLCT does not provide these specifications in available documentation. Both support PCM interface operation.

Q: Are compliance certifications identical? A: Yes. Both components are ROHS3 compliant, carry MSL rating 3 (168 Hours), are REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the availability status of the LE9622RQCT? A: The LE9622RQCT is an active product with documented inventory availability. The LE88241DLCT is obsolete with limited remaining stock.

Q: Does the LE9622RQCT support the same interfaces as the LE88241DLCT? A: The LE9622RQCT supports PCM and SPI interfaces. The LE88241DLCT supports PCM interface. The LE9622RQCT provides additional SPI capability.

Q: What is the miSLIC™ series designation? A: The LE9622RQCT belongs to the miSLIC™ series, Microchip's Subscriber Line Interface Concept product line for modern telecommunications applications.