DF36024FTV Equivalent & Substitute Parts

Part Overview

The DF36024FTV is a 16-bit H8/300H Tiny microcontroller manufactured by Renesas Electronics Corporation, featuring 32KB FLASH memory, 2KB RAM, and a 48-pin VQFN package. This device operates at 20MHz with a supply voltage range of 3V to 5.5V and includes integrated peripherals such as PWM, WDT, and SCI connectivity. The product is classified as obsolete, making equivalent or substitute components necessary for new designs or production continuity planning.

Substiute Parts

DF36024FTV

Renesas Electronics CorporationIn Stock: 883DF36024FTV Datasheet

Current PartRFQ

MC9S12C32CFAE25

NXP USA Inc.In Stock: 1803MC9S12C32CFAE25 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF36024FTV is based on the following critical parameters:

• Core Memory Configuration: 32KB FLASH and 2KB RAM are the primary functional requirements
• Package Compatibility: 48-pin surface mount package (VQFN or equivalent footprint)
• Electrical Specifications: 16-bit architecture with supply voltage range compatibility
• Peripheral Feature Set: SCI connectivity, PWM, and WDT functionality
• Compliance Standards: ROHS3 compliance and MSL rating

The MC9S12C32CFAE25 qualifies as a substitute based on matching core memory capacity (32KB FLASH, 2KB RAM), 16-bit architecture, 48-pin surface mount package, and equivalent compliance certifications. While the substitute operates at a higher speed (25MHz) and broader temperature range (-40°C ~ 85°C), these represent functional improvements rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

The MC9S12C32CFAE25 is suitable as a substitute for the DF36024FTV based on the following factors:

• Product Status: The main part is obsolete, while the substitute is active and maintains current manufacturing support
• Memory Equivalence: Both devices provide identical 32KB FLASH and 2KB RAM capacity
• Compliance Alignment: Both parts maintain ROHS3 compliance and equivalent MSL ratings
• Functional Capability: The substitute provides enhanced specifications including higher clock speed, extended temperature range, and additional connectivity options (CANbus, SPI, EBI/EMI)
• Package Consideration: Both use 48-pin surface mount packages with identical 7x7mm footprint dimensions, though the substitute uses LQFP instead of VQFN, requiring PCB layout verification

Design migration to the MC9S12C32CFAE25 requires validation of package footprint compatibility and firmware assessment for architectural differences between the H8/300H and HCS12 processor families.

Frequently Asked Questions (FAQ)

Q: Can the MC9S12C32CFAE25 directly replace the DF36024FTV without PCB modifications?

A: The 48-pin 7x7mm footprint is identical, but the package type differs (LQFP vs. VQFN). PCB layout verification is required to confirm pad compatibility and thermal characteristics.

Q: What are the key memory specifications that define substitution eligibility?

A: The primary criteria are 32KB FLASH program memory and 2KB RAM. Both the main part and substitute meet these requirements identically.

Q: Does the higher operating speed of the MC9S12C32CFAE25 (25MHz vs. 20MHz) create compatibility issues?

A: Higher speed represents a functional enhancement. Existing firmware designed for 20MHz operation will execute correctly at 25MHz. Timing-critical applications should be re-evaluated for the new clock frequency.

Q: Are there architectural differences between the H8/300H and HCS12 processors that affect substitution?

A: Yes. These are different processor architectures from different manufacturers. Firmware must be ported and recompiled for the HCS12 architecture. Instruction sets, interrupt handling, and peripheral register layouts differ significantly.

Q: What is the significance of the extended temperature range (-40°C ~ 85°C) in the substitute?

A: The substitute supports a broader operating temperature range than the original part (-20°C ~ 75°C). This provides additional flexibility for applications requiring extended temperature operation.

Q: How do the additional I/O pins (31 vs. 30) and enhanced connectivity options affect substitution?

A: The substitute provides one additional I/O pin and expanded connectivity (CANbus, SPI, EBI/EMI). These represent functional enhancements that do not prevent substitution but may require firmware updates to utilize new capabilities.

Q: What compliance certifications should be verified before substitution?

A: Both parts maintain ROHS3 compliance and equivalent MSL ratings (3, 168 Hours). Verify that your supply chain documentation confirms current ROHS3 and REACH compliance status for the substitute part.