Z8F0423QB005SC Equivalent & Substitute Parts

Part Overview

The Z8F0423QB005SC is an eZ8 Encore!® XP® 8-bit microcontroller manufactured by Zilog, featuring 4KB FLASH program memory, 1KB RAM, and integrated peripherals including UART/USART, PWM, and analog-to-digital conversion. This device is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part is designed for embedded control applications requiring low-power operation within the 2.7V to 3.6V supply range.

Substiute Parts

Z8F0423QB005SC

ZilogIn Stock: 1187Z8F0423QB005SC Datasheet

Current PartRFQ

Z8F0423QB005SG

ZilogIn Stock: 1161Z8F0423QB005SG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Z8F0423QB005SC is determined by strict equivalence across the following critical parameters:

• Core Architecture: eZ8 processor, 8-bit core
• Memory Configuration: 4KB FLASH program memory, 1KB RAM
• Operating Frequency: 5MHz
• Supply Voltage Range: 2.7V ~ 3.6V
• Peripheral Set: IrDA, UART/USART, PWM, WDT, Brown-out Detect/Reset, LED, POR
• Analog Capability: 4-channel 10-bit A/D converter
• I/O Count: 6 I/O pins
• Package Format: 8-QFN (5x6) with exposed pad, 8-VDFN case
• Mounting Technology: Surface Mount
• Temperature Range: 0°C ~ 70°C

The Z8F0423QB005SG meets all substitution criteria as an electrical and mechanical equivalent, with the primary distinction being packaging format (Tray vs. Tube) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The Z8F0423QB005SG is a direct functional equivalent to the Z8F0423QB005SC with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Product Status: The Z8F0423QB005SG carries Active product status, ensuring continued manufacturer support and availability. The Z8F0423QB005SC is classified as Obsolete, limiting future procurement options.

Regulatory Compliance: The Z8F0423QB005SG is ROHS3 Compliant, meeting current environmental and hazardous substance restrictions. The Z8F0423QB005SC is RoHS non-compliant, which may present regulatory constraints in certain markets and applications.

Packaging Considerations: The Z8F0423QB005SG is supplied in Tray packaging, while the Z8F0423QB005SC uses Tube packaging. Both formats are compatible with standard surface-mount assembly processes; packaging selection depends on production volume and handling requirements.

For new designs and ongoing production, the Z8F0423QB005SG is the appropriate selection due to active product status and regulatory compliance. For legacy system maintenance where the original part number must be preserved, the Z8F0423QB005SG provides functional continuity with improved compliance posture.

Frequently Asked Questions (FAQ)

Q: Are the Z8F0423QB005SC and Z8F0423QB005SG pin-compatible?

A: Yes. Both devices use the 8-QFN (5x6) package with 8-VDFN exposed pad configuration. Pin assignments, signal functions, and electrical characteristics are identical, enabling direct PCB-level substitution without layout modifications.

Q: What is the difference between Tube and Tray packaging?

A: Tube packaging (Z8F0423QB005SC) uses a continuous plastic tube for component storage and transport, suitable for lower-volume applications. Tray packaging (Z8F0423QB005SG) uses segmented plastic trays, optimized for high-volume automated assembly. Both formats maintain identical component specifications and MSL ratings.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and hazardous substance restrictions, not electrical or functional performance. Both parts operate identically within specified parameters. The ROHS3 compliance of the Z8F0423QB005SG reflects current manufacturing standards and regulatory requirements.

Q: Can the Z8F0423QB005SG be used as a drop-in replacement in existing designs?

A: Yes. The Z8F0423QB005SG is a complete functional and mechanical equivalent. No design changes, firmware modifications, or PCB alterations are required for substitution.

Q: Why is the Z8F0423QB005SC classified as Obsolete?

A: Obsolete status indicates that Zilog has discontinued active production and support for this specific part number. The Z8F0423QB005SG represents the current active equivalent, ensuring access to ongoing manufacturer support and supply chain continuity.

Q: Are there any thermal or environmental performance differences?

A: No. Both parts operate across the identical temperature range (0°C ~ 70°C) and maintain the same MSL rating of 3 (168 Hours). Thermal and environmental performance characteristics are equivalent.