W83697UG Equivalent & Substitute Parts

Part Overview

The W83697UG is a specialized interface IC manufactured by Nuvoton Technology Corporation, designed for PC and PDA applications. This 128-pin PQFP device operates at dual voltage levels (3.3V and 5V) and implements LPC interface functionality. The product is currently classified as obsolete, making identification of compatible substitute components essential for legacy system maintenance and component sourcing.

Substiute Parts

W83697UG

Nuvoton Technology CorporationIn Stock: 1516W83697UG Datasheet

Current PartRFQ

NCT6106D

Nuvoton Technology CorporationIn Stock: 8285NCT6106D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the W83697UG is determined by the following critical parameters:

• Manufacturer: Both main and substitute parts are sourced from Nuvoton Technology Corporation, ensuring design compatibility and technical support continuity.
• Category & Function: Both components are classified as specialized interface ICs, maintaining functional equivalence.
• Mounting Type: Surface mount technology is consistent across all parts.
• Moisture Sensitivity Level: MSL rating of 3 (168 Hours) is maintained, ensuring equivalent handling and storage requirements.
• Voltage Supply Compatibility: The substitute part operates at 3.3V, which is within the dual-voltage range (3.3V, 5V) of the original component.
• Regulatory Compliance: REACH and ECCN classifications remain consistent, supporting equivalent regulatory acceptance.

The NCT6106D is identified as the manufacturer-recommended substitute based on these aligned parameters.

Parameter Comparison

Engineering Selection Recommendations

The NCT6106D serves as the primary substitute for the obsolete W83697UG based on the following criteria:

• Product Status Alignment: The NCT6106D maintains active product status with Nuvoton Technology Corporation, ensuring ongoing availability and technical support.
• Regulatory Compliance: Both components share identical REACH and ECCN classifications (EAR99), maintaining equivalent regulatory acceptance across jurisdictions.
• Certification Equivalence: Identical HTSUS coding (8542.39.0001) confirms tariff and trade classification parity.
• Handling Requirements: Matching MSL ratings ensure equivalent moisture sensitivity protocols during storage and assembly.
• Manufacturer Continuity: Selection from the same manufacturer preserves design lineage and technical documentation consistency.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between the W83697UG and NCT6106D?

A: The NCT6106D is an active product replacement for the obsolete W83697UG. Key differences include package dimensions (128-LQFP 14x14 versus 128-PQFP 14x20) and voltage supply specification (3.3V only versus dual 3.3V/5V). Both maintain identical MSL ratings, mounting type, and regulatory compliance.

Q: Are there package compatibility considerations for PCB redesign?

A: Yes. The W83697UG uses a 128-PQFP package measuring 14x20mm, while the NCT6106D uses a 128-LQFP package measuring 14x14mm. PCB footprint modification is required for substitution. The reduced footprint of the NCT6106D may provide layout advantages.

Q: Does the NCT6106D support the dual voltage operation of the original part?

A: The NCT6106D operates at 3.3V only. If your application requires 5V operation, voltage level translation or power supply modification may be necessary. The 3.3V specification is within the original part's voltage range and suitable for 3.3V-based systems.

Q: Are there inventory considerations for this substitution?

A: The W83697UG is obsolete with limited remaining stock (1429 pcs). The NCT6106D is an active product with significantly higher availability (8197 pcs), supporting long-term component sourcing and production continuity.

Q: What certifications apply to both parts?

A: Both the W83697UG and NCT6106D are REACH Unaffected and classified under ECCN EAR99, with identical HTSUS tariff codes (8542.39.0001). This ensures equivalent regulatory and trade compliance.