Z8S18033FSC Equivalent & Substitute Parts

Part Overview

The Z8S18033FSC is a Z8S180 microprocessor IC manufactured by Zilog, featuring 1 core, 8-bit architecture operating at 33MHz in an 80-QFP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The Z180 series microprocessor is designed for embedded applications requiring 5.0V I/O operation across the 0°C to 70°C temperature range.

Substiute Parts

Z8S18033FSC

ZilogIn Stock: 5236Z8S18033FSC Datasheet

Current PartRFQ

Z8S18020FSG

ZilogIn Stock: 1847Z8S18020FSG Datasheet

SimilarRFQ

Z8S18033FSG

ZilogIn Stock: 1249Z8S18033FSG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Z8S18033FSC is determined by the following critical parameters:

Core Compatibility Requirements:

• Identical core processor (Z8S180)
• Matching bus width (1 Core, 8-Bit)
• Identical package type (80-BQFP surface mount)
• Matching voltage specification (5.0V I/O)
• Compatible operating temperature range (0°C ~ 70°C)
• Identical interface set (ASCI, CSIO, UART)

Speed Consideration: The Z8S18033FSC operates at 33MHz. Substitute parts may operate at equal or lower clock speeds while maintaining full functional compatibility, as lower-speed variants operate within the same electrical and thermal envelope.

Compliance Consideration: While the main part (Z8S18033FSC) is RoHS non-compliant and obsolete, substitute parts with improved compliance status (RoHS3 compliant, active product status) provide equivalent functionality with enhanced regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

Z8S18033FSG is the primary substitute for Z8S18033FSC. Both parts operate at identical 33MHz speed with matching electrical and mechanical specifications. The Z8S18033FSG offers active product status and ROHS3 compliance, providing regulatory advantage while maintaining full functional equivalence. This part is recommended for direct replacement in applications where the original 33MHz performance specification is required.

Z8S18020FSG is a functional substitute for applications where reduced clock speed is acceptable. Operating at 20MHz, this part maintains identical core architecture, package, voltage, and interface specifications. The Z8S18020FSG is suitable for designs where lower processing speed does not impact system performance requirements. This part also provides active product status and ROHS3 compliance.

Both substitute parts are manufactured by Zilog and share the Z8S180 core processor architecture, ensuring software and firmware compatibility with the original Z8S18033FSC design.

Frequently Asked Questions (FAQ)

Q: Can Z8S18033FSG directly replace Z8S18033FSC in existing designs?

A: Yes. Both parts share identical core processor (Z8S180), bus width (1 Core, 8-Bit), clock speed (33MHz), voltage (5.0V), operating temperature range (0°C ~ 70°C), package type (80-BQFP), and interface set (ASCI, CSIO, UART). Pin-for-pin compatibility is maintained.

Q: What is the difference between Z8S18033FSC and Z8S18033FSG?

A: The primary differences are product status and compliance. Z8S18033FSC is obsolete and RoHS non-compliant, while Z8S18033FSG is active and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Can Z8S18020FSG replace Z8S18033FSC?

A: Z8S18020FSG is functionally compatible but operates at 20MHz instead of 33MHz. This substitution is valid only for applications where the reduced clock speed does not compromise system performance. All other specifications (core, package, voltage, interfaces, temperature range) are identical.

Q: Are there packaging differences between these parts?

A: All three parts use 80-BQFP surface mount packages with identical pin configurations. Moisture sensitivity level (MSL 3, 168 Hours) is consistent across all parts.

Q: What compliance certifications apply to the substitute parts?

A: Z8S18033FSG and Z8S18020FSG are both ROHS3 compliant and REACH unaffected. The original Z8S18033FSC is RoHS non-compliant, making the substitutes preferable for new designs subject to RoHS regulations.