DF38086RW4V Equivalent & Substitute Parts

Part Overview

The DF38086RW4V is a 16-bit H8/300H SLP microcontroller manufactured by Renesas Electronics Corporation, featuring 52KB FLASH memory and operating at 4MHz. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part is packaged in an 80-TQFP (12x12) surface mount configuration with supply voltage range of 1.8V to 3.6V.

Substiute Parts

DF38086RW4V

Renesas Electronics CorporationIn Stock: 1204DF38086RW4V Datasheet

Current PartRFQ

R5F10WMEAFB#30

Renesas Electronics CorporationIn Stock: 5747R5F10WMEAFB#30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The R5F10WMEAFB#30 qualifies as a functional substitute based on the following alignment of critical parameters:

Substitution Criteria:

• Core Size: Both devices are 16-bit architectures
• Package Type: Both use 80-pin LQFP/TQFP surface mount packages with identical 12x12mm footprint
• Mounting Type: Both are surface mount configurations
• Program Memory Type: Both utilize FLASH memory technology
• RoHS Compliance: Both meet ROHS3 requirements
• Supply Voltage Compatibility: R5F10WMEAFB#30 operates at 1.6V ~ 5.5V, encompassing the DF38086RW4V range of 1.8V ~ 3.6V

The R5F10WMEAFB#30 represents an enhanced alternative with increased performance specifications (24MHz vs 4MHz), expanded memory capacity (64KB FLASH vs 52KB), and extended operating temperature range (-40°C ~ 85°C vs -20°C ~ 75°C).

Parameter Comparison

Engineering Selection Recommendations

The R5F10WMEAFB#30 is suitable for applications requiring DF38086RW4V replacement based on regulatory and compliance alignment. Both devices maintain ROHS3 compliance, REACH unaffected status, and identical EAR99 export classification. The substitute part is currently in active production status, ensuring long-term availability compared to the obsolete DF38086RW4V.

Physical compatibility is established through identical 80-pin package footprints (12x12mm). The expanded supply voltage range of the R5F10WMEAFB#30 (1.6V ~ 5.5V) provides broader operational flexibility while maintaining compatibility with the original 1.8V ~ 3.6V specification window.

Frequently Asked Questions (FAQ)

Q: Are the DF38086RW4V and R5F10WMEAFB#30 pin-compatible?

A: Both devices use 80-pin LQFP/TQFP packages with identical 12x12mm footprints. Physical placement compatibility is established. Pin function mapping requires verification against device datasheets for specific application requirements.

Q: What are the key differences between these microcontrollers?

A: The R5F10WMEAFB#30 provides enhanced specifications: 24MHz clock speed versus 4MHz, 64KB FLASH versus 52KB, 4KB RAM versus 2KB, and 58 I/O pins versus 55. Operating temperature range extends to -40°C ~ 85°C compared to -20°C ~ 75°C.

Q: Why is the DF38086RW4V classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The R5F10WMEAFB#30 maintains active production status, providing continuity for system support and new implementations.

Q: Are both parts RoHS compliant?

A: Both the DF38086RW4V and R5F10WMEAFB#30 are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 hours).

Q: What supply voltage range should be used for substitution?

A: The R5F10WMEAFB#30 operates at 1.6V ~ 5.5V, which encompasses the original DF38086RW4V range of 1.8V ~ 3.6V. Applications designed for the original voltage range remain compatible.