Z8F081ASH020EG Equivalent & Substitute Parts

Part Overview

The Z8F081ASH020EG is an eZ8 Encore!® XP® 8-bit microcontroller IC featuring 8KB FLASH program memory, 1KB RAM, and 20MHz operation. This part is classified as Obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. The substitute part Z8F081ASH020EG2156 maintains identical core functionality while offering Active product status and improved availability.

Substiute Parts

Z8F081ASH020EG

ZilogIn Stock: 1136Z8F081ASH020EG Datasheet

Current PartRFQ

Z8F081ASH020EG2156

ZilogIn Stock: 1221Z8F081ASH020EG2156 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Z8F081ASH020EG2156 qualifies as a direct substitute based on the following critical parameters:

• Identical core processor architecture (eZ8)
• Matching core size (8-Bit) and clock speed (20MHz)
• Identical program memory configuration (8KB FLASH)
• Identical RAM capacity (1K x 8)
• Matching I/O count (17 pins)
• Identical voltage supply range (2.7V ~ 3.6V)
• Identical operating temperature range (-40°C ~ 105°C)
• Identical package form factor (20-SOIC)
• Identical connectivity interfaces (IrDA, UART/USART)
• Identical peripheral feature set

The substitution is valid across all electrical and mechanical parameters specified for this microcontroller category.

Parameter Comparison

Engineering Selection Recommendations

The Z8F081ASH020EG2156 is the appropriate selection for new designs and ongoing production requirements. Both parts maintain ROHS3 compliance and REACH unaffected status. The substitute part carries Active product status, ensuring continued availability and manufacturing support. Both parts satisfy identical electrical specifications, mechanical packaging requirements, and environmental operating conditions. Selection between these parts should be based on inventory availability and supply chain requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Are Z8F081ASH020EG and Z8F081ASH020EG2156 pin-compatible?

A: Yes. Both parts use the 20-SOIC package with identical pin assignments, I/O count (17), and electrical characteristics. Direct PCB substitution is supported.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. Z8F081ASH020EG is Obsolete, while Z8F081ASH020EG2156 is Active. All electrical and mechanical specifications are identical.

Q: Can I use Z8F081ASH020EG2156 in place of Z8F081ASH020EG in existing designs?

A: Yes. The substitute part maintains identical core processor architecture, memory configuration, I/O specifications, voltage supply range, operating temperature range, and package form factor. No design modifications are required.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Compliance certifications are equivalent.

Q: What packaging options are available?

A: Z8F081ASH020EG is supplied in standard packaging. Z8F081ASH020EG2156 is supplied in Tube packaging. Both use the 20-SOIC form factor.

Q: Why should I transition from Z8F081ASH020EG to Z8F081ASH020EG2156?

A: The substitute part carries Active product status, ensuring long-term availability and manufacturing support. The Obsolete status of the original part may result in supply constraints and eventual discontinuation.