NCT5569D Equivalent & Substitute Parts

Part Overview

The NCT5569D is a Serial/UART Interface IC manufactured by Nuvoton Technology Corporation, housed in a 64-LQFP (7x7) surface mount package. This component operates within a supply voltage range of 3.135V to 3.465V and is classified as an Interface category device. The NCT5569D has reached obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Substiute Parts

NCT5569D

Nuvoton Technology CorporationIn Stock: 1040NCT5569D Datasheet

Current PartRFQ

NCT5585D

Nuvoton Technology CorporationIn Stock: 785NCT5585D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NCT5569D are identified based on the following critical parameters that determine functional and physical compatibility:

Package Compatibility: Both the main part and substitute must utilize surface mount technology with compatible LQFP package footprints. The NCT5569D uses a 64-LQFP (7x7) package.

Manufacturer Alignment: Substitute parts sourced from the same manufacturer (Nuvoton Technology Corporation) ensure design continuity, firmware compatibility, and consistent electrical characteristics.

Interface Category: The substitute must function within the Interface category and support serial communication protocols.

Pin Count and Package Class: The 64-pin LQFP package class establishes the baseline for physical substitution feasibility.

Product Status: Active product status of substitute parts ensures ongoing availability and manufacturer support, addressing the obsolescence of the NCT5569D.

Parameter Comparison

Engineering Selection Recommendations

The NCT5585D serves as an active substitute for the obsolete NCT5569D within the Nuvoton Technology Corporation product family. Both components are classified as Interface ICs and employ surface mount LQFP packaging technology.

Product Status Consideration: The NCT5585D maintains active product status with ongoing manufacturer support, whereas the NCT5569D is obsolete. This status differential is the primary driver for substitution in new designs and component replenishment scenarios.

Package Footprint Differences: The NCT5569D utilizes a 64-LQFP (7x7) footprint, while the NCT5585D employs a 64-LQFP-EP (10x10) footprint with an exposed pad. The larger package footprint of the NCT5585D requires PCB layout modification and may impact thermal management characteristics.

Interface Protocol Variation: The NCT5569D supports Serial and UART interfaces, whereas the NCT5585D supports LPC and SPI interfaces. Design integration requires protocol compatibility verification with system architecture.

Compliance Status: The NCT5585D carries REACH Unaffected status, confirming regulatory compliance for European market applications.

Frequently Asked Questions (FAQ)

Q: Can the NCT5585D directly replace the NCT5569D without PCB modifications?

A: Direct replacement without PCB modifications is not feasible. The NCT5585D uses a 64-LQFP-EP (10x10) package, whereas the NCT5569D uses a 64-LQFP (7x7) package. The larger footprint and exposed pad of the NCT5585D require PCB layout redesign.

Q: Are the interface protocols compatible between NCT5569D and NCT5585D?

A: The interface protocols differ between these components. The NCT5569D supports Serial and UART protocols, while the NCT5585D supports LPC and SPI protocols. System-level protocol compatibility must be verified before substitution.

Q: What is the significance of the exposed pad in the NCT5585D package?

A: The exposed pad (EP) in the 64-LQFP-EP package provides enhanced thermal dissipation compared to standard LQFP packages. This feature is beneficial for applications requiring improved heat management but necessitates PCB design modifications to accommodate the pad.

Q: Why is the NCT5569D classified as obsolete?

A: Obsolete classification indicates that the manufacturer has discontinued production and support for this component. The NCT5585D represents the active alternative within the Nuvoton product portfolio.

Q: Are both components manufactured by the same company?

A: Yes, both the NCT5569D and NCT5585D are manufactured by Nuvoton Technology Corporation, ensuring design continuity and consistent quality standards within the product family.

Q: What supply voltage range does the NCT5585D support?

A: The supply voltage specification for the NCT5585D is not provided in the available technical parameters. Voltage compatibility must be verified through the component datasheet before implementation.