Z8S18010PSG Equivalent & Substitute Parts

Part Overview

The Z8S18010PSG is a Z180 microprocessor IC manufactured by Zilog, featuring 1 core, 8-bit architecture operating at 10MHz in a 64-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for legacy system maintenance, repair, and redesign applications. The Z180 series provides embedded processing capabilities with integrated DRAM controllers and multiple communication interfaces (ASCI, CSIO, UART) suitable for industrial and embedded control systems.

Substiute Parts

Z8S18010PSG

ZilogIn Stock: 873Z8S18010PSG Datasheet

Current PartRFQ

Z8S18010FSG

ZilogIn Stock: 1216Z8S18010FSG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Z8S18010PSG is determined by the following core parameters:

• Base processor architecture (Z8S180)
• Clock frequency (10MHz)
• Voltage specification (5.0V)
• Operating temperature range (0°C ~ 70°C)
• Functional interface set (ASCI, CSIO, UART)
• Compliance certifications (ROHS3, REACH Unaffected)

The Z8S18010FSG qualifies as a functional equivalent based on identical processor core, speed, voltage, temperature range, and interface capabilities. The primary difference is packaging format: the substitute uses 80-BQFP surface-mount technology versus the original 64-DIP through-hole configuration. This packaging difference requires PCB redesign and assembly process modification but does not affect electrical or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The Z8S18010FSG is the direct functional equivalent for Z8S18010PSG applications. Both components maintain identical electrical specifications, processor architecture, and interface capabilities. The Z8S18010FSG holds active product status, ensuring continued availability and supply chain reliability compared to the obsolete Z8S18010PSG.

Selection between these parts depends on PCB design constraints:

• Retain Z8S18010PSG only if existing through-hole PCB layout cannot be modified and component availability remains sufficient for project requirements.
• Transition to Z8S18010FSG for new designs, redesigns, or when through-hole inventory becomes depleted. This substitution requires PCB layout modification to accommodate 80-BQFP surface-mount footprint and updated assembly processes.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and embedded applications.

Frequently Asked Questions (FAQ)

Q: Can Z8S18010FSG directly replace Z8S18010PSG without design changes?

A: Electrical and functional compatibility is complete. However, physical substitution requires PCB redesign due to different package formats (64-DIP through-hole versus 80-BQFP surface-mount). Assembly process changes are necessary.

Q: What are the key compatibility criteria for Z180 substitution?

A: Core processor (Z8S180), clock frequency (10MHz), supply voltage (5.0V), operating temperature range (0°C ~ 70°C), and interface set (ASCI, CSIO, UART) must remain identical. Package format and mounting type do not affect functional compatibility but require design accommodation.

Q: Why is Z8S18010PSG classified as obsolete?

A: Zilog has discontinued production of this through-hole variant. The Z8S18010FSG surface-mount version remains in active production, representing the current manufacturing standard for this processor architecture.

Q: Are there compliance differences between these parts?

A: Both components are ROHS3 compliant and REACH unaffected. Moisture sensitivity levels differ (MSL 1 for Z8S18010PSG versus MSL 3 for Z8S18010FSG), but both are suitable for standard industrial storage and handling conditions.

Q: What design considerations apply when switching from 64-DIP to 80-BQFP?

A: PCB footprint, trace routing, via placement, and solder reflow profile require modification. The 80-BQFP package provides higher pin density and improved thermal characteristics compared to 64-DIP through-hole configuration.