DF38086RH4V Equivalent & Substitute Parts

Part Overview

The DF38086RH4V is a 16-bit H8/300H SLP microcontroller manufactured by Renesas Electronics Corporation, featuring 52KB FLASH memory and an 80-QFP package. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs, production continuity, and system upgrades. Substitute parts must maintain compatibility across core processor architecture, memory capacity, package form factor, and electrical specifications to ensure functional equivalence in embedded applications.

Substiute Parts

DF38086RH4V

Renesas Electronics CorporationIn Stock: 1017DF38086RH4V Datasheet

Current PartRFQ

R5F10WMEAFA#30

Renesas Electronics CorporationIn Stock: 1579R5F10WMEAFA#30 Datasheet

SimilarRFQ

MC9S12E64CFUE

NXP USA Inc.In Stock: 1734MC9S12E64CFUE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the DF38086RH4V is based on the following critical parameters:

Core Compatibility Criteria:

• 16-bit core processor architecture
• FLASH-based program memory
• 80-pin QFP package family (80-QFP or 80-LQFP with 14x14mm footprint)
• Surface mount technology
• ROHS3 compliance and EAR99 classification

Functional Equivalence Parameters:

• Program memory capacity of 52KB or greater
• RAM capacity of 2KB or greater
• Supply voltage range compatibility or overlap
• I/O pin count of 55 or greater
• Operating temperature range suitable for industrial applications

The substitute parts listed (R5F10WMEAFA#30 and MC9S12E64CFUE) meet these criteria through enhanced specifications while maintaining package compatibility and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

R5F10WMEAFA#30 (Renesas RL78/L13): This substitute maintains Renesas ecosystem continuity with active product status. It provides enhanced specifications including 24MHz speed, 64KB program memory, and extended operating temperature range (-40°C ~ 85°C). The supply voltage range (1.6V ~ 5.5V) encompasses the original part's range. ROHS3 compliance and EAR99 classification match the original device. The 80-LQFP package maintains 14x14mm footprint compatibility with the original 80-BQFP.

MC9S12E64CFUE (NXP HCS12): This substitute offers an alternative architecture from NXP with active product status. It delivers 25MHz speed, 64KB program memory, and extended operating temperature range (-40°C ~ 85°C). The 80-QFP package maintains 14x14mm footprint compatibility. ROHS3 compliance and EAR99 classification are equivalent. Note that the supply voltage range (2.35V ~ 2.75V) is narrower than the original part and does not fully overlap with the lower voltage boundary (1.8V).

Both substitutes are actively manufactured, ROHS3 compliant, and maintain package footprint compatibility. Selection depends on voltage supply requirements and architectural preference within the embedded microcontroller ecosystem.

Frequently Asked Questions (FAQ)

Q: Can R5F10WMEAFA#30 directly replace DF38086RH4V in existing designs? A: The R5F10WMEAFA#30 maintains package footprint compatibility (80-pin, 14x14mm) and exceeds memory specifications. However, core processor architecture differs (RL78 vs. H8/300H), requiring firmware validation and potential code adaptation. Supply voltage range compatibility is confirmed (1.6V ~ 5.5V encompasses 1.8V ~ 3.6V).

Q: What are the package compatibility considerations? A: The original DF38086RH4V uses 80-BQFP packaging. Substitute parts use 80-LQFP (R5F10WMEAFA#30) and 80-QFP (MC9S12E64CFUE). All three packages maintain identical 14x14mm footprints and 80-pin configurations, ensuring PCB layout compatibility. Pin assignments must be verified against specific application requirements.

Q: Is MC9S12E64CFUE suitable for low-voltage applications? A: The MC9S12E64CFUE supply voltage range (2.35V ~ 2.75V) does not support the lower boundary of the original part (1.8V). This substitute is suitable only for applications operating within its specified voltage window. The R5F10WMEAFA#30 is recommended for designs requiring the full 1.8V ~ 3.6V range.

Q: Are both substitutes ROHS3 compliant? A: Yes. Both R5F10WMEAFA#30 and MC9S12E64CFUE are ROHS3 compliant with EAR99 classification, matching the regulatory status of the original DF38086RH4V.

Q: What is the impact of increased clock speed on substitute parts? A: Both substitutes operate at higher clock speeds (24MHz and 25MHz respectively) compared to the original 4MHz. This enables faster instruction execution and improved real-time performance. Applications must account for increased power consumption and potential electromagnetic emissions in high-speed operation.