Equivalent & Substitute Parts for Z8523316FSG

Part Overview

The Z8523316FSG is a specialized interface IC manufactured by Zilog in a 44-LQFP package. This component is classified as an EMSCC™ series interface device with a current product status of Obsolete. Due to its obsolete status and limited availability in future procurement cycles, identifying equivalent and substitute parts is essential for design continuity, production planning, and long-term system reliability. The part operates within a 4.5V to 5.5V supply voltage range and is designed for surface mount applications.

Substiute Parts

Z8523316FSG

ZilogIn Stock: 1128Z8523316FSG Datasheet

Current PartRFQ

Z8523316ASG

ZilogIn Stock: 945Z8523316ASG Datasheet

SimilarRFQ

AD7569BNZ

Analog Devices Inc.In Stock: 1065AD7569BNZ Datasheet

SimilarRFQ

EQ50F100LR/NOPB

National SemiconductorIn Stock: 2743EQ50F100LR/NOPB Datasheet

SimilarRFQ

PEX8604-BA50BC G

Broadcom LimitedIn Stock: 5915PEX8604-BA50BC G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Z8523316FSG are identified based on the following critical parameters:

• Package Type: 44-LQFP surface mount configuration
• Voltage Supply Range: 4.5V to 5.5V nominal operation
• Functional Category: Specialized interface IC
• Compliance Standards: ROHS3 compliance and REACH unaffected status
• Mounting Technology: Surface mount suitability

The substitute parts listed below maintain compatibility across these core electrical and mechanical parameters. Substitution is valid when all specified parameters align with the original component's operational requirements.

Parameter Comparison

Engineering Selection Recommendations

Z8523316ASG is the primary substitute candidate. This part maintains identical package geometry (44-LQFP), series designation (EMSCC™), and functional classification. The voltage supply range (4.75V ~ 5.25V) is compatible within the original specification window. Product status is Last Time Buy, indicating extended availability compared to the obsolete Z8523316FSG. Both parts share equivalent compliance certifications (ROHS3, REACH Unaffected) and identical MSL ratings.

AD7569BNZ provides functional interface capability with active product status, ensuring long-term procurement viability. However, this part uses a 24-DIP through-hole package, requiring PCB redesign and assembly process modification from the original surface mount configuration.

EQ50F100LR/NOPB is classified as obsolete with a significantly different voltage supply range (1.71V ~ 1.89V), making it unsuitable for direct substitution in 5V systems.

PEX8604-BA50BC G operates as an active product with PCI Express switching functionality. The 196-BGA package represents a substantial departure from the 44-LQFP form factor and is applicable only in designs where functional requirements and PCB layout can accommodate this larger package.

Frequently Asked Questions (FAQ)

Q: Can Z8523316ASG directly replace Z8523316FSG without PCB modifications?

A: Yes. Both parts share the 44-LQFP (10x10) package footprint, identical pin count, and compatible voltage supply ranges within the 5V operating window. No PCB layout changes are required.

Q: What is the significance of the "Last Time Buy" status for Z8523316ASG?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life production. Inventory remains available for a defined period, but future procurement will not be possible. This part should be prioritized for stock acquisition if long-term system support is required.

Q: Why is AD7569BNZ not recommended as a direct substitute despite active product status?

A: AD7569BNZ uses a 24-DIP through-hole package, whereas Z8523316FSG requires a 44-LQFP surface mount package. This fundamental difference necessitates PCB redesign, assembly process changes, and functional verification before implementation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, consistent with the original Z8523316FSG specifications.

Q: What is the MSL (Moisture Sensitivity Level) consideration for these parts?

A: Z8523316FSG, Z8523316ASG, and PEX8604-BA50BC G all carry MSL-3 ratings (168-hour floor life). AD7569BNZ carries MSL-1 (unlimited floor life), providing superior moisture tolerance. Storage and handling procedures must comply with the highest MSL requirement in the assembly process.