DF36037FPV Equivalent & Substitute Parts

Part Overview

The DF36037FPV is a 16-bit H8/300H Tiny microcontroller manufactured by Renesas Electronics Corporation, featuring 56KB FLASH memory and a 64-LFQFP package. This device is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations. The H8/300H architecture operates at 20MHz with integrated CANbus, SCI, and SSU connectivity, supported by PWM and watchdog timer peripherals across 45 I/O pins.

Substiute Parts

DF36037FPV

Renesas Electronics CorporationIn Stock: 1077DF36037FPV Datasheet

Current PartRFQ

MC9S12P64VLH

NXP USA Inc.In Stock: 908MC9S12P64VLH Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF36037FPV is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 64-LQFP (10x10) surface mount package to ensure PCB footprint compatibility without redesign.

Core Architecture: The substitute must maintain 16-bit processing capability to preserve software compatibility and system performance characteristics.

Memory Configuration: Program memory must meet or exceed 56KB FLASH capacity. RAM must support minimum 3K x 8 configuration.

Voltage Supply Range: The substitute must operate within the 3V to 5.5V supply range to function in existing power delivery systems.

I/O Pin Count: Minimum 45 I/O pins required to maintain interface connectivity.

Connectivity & Peripherals: CANbus, SCI, and PWM functionality are essential for system operation. Watchdog timer support is required.

Operating Temperature: The substitute must support the -20°C to 75°C operating range.

Compliance: RoHS3 compliance is mandatory for regulatory alignment.

The MC9S12P64VLH meets these substitution criteria through equivalent package geometry, 16-bit architecture, superior memory specifications, and full compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MC9S12P64VLH qualifies as a direct substitute for the DF36037FPV based on the following engineering criteria:

Package Equivalence: Both devices utilize the 64-LQFP (10x10) surface mount package, eliminating PCB redesign requirements.

Functional Compatibility: The 16-bit architecture and 64-LQFP package ensure mechanical and electrical compatibility at the board level.

Memory Sufficiency: The MC9S12P64VLH provides 64KB FLASH and 4K x 8 RAM, exceeding the DF36037FPV requirements of 56KB FLASH and 3K x 8 RAM.

Regulatory Compliance: Both devices maintain ROHS3 compliance and identical MSL ratings, satisfying supply chain and environmental requirements.

Active Production Status: The MC9S12P64VLH is actively manufactured by NXP USA Inc., ensuring long-term availability and supply chain stability compared to the obsolete DF36037FPV.

Performance Enhancement: The substitute operates at 32MHz versus 20MHz, providing performance headroom for existing applications without requiring firmware modification.

Connectivity Consideration: The MC9S12P64VLH replaces SSU connectivity with SPI. Applications dependent on SSU-specific functionality require interface evaluation during integration.

Frequently Asked Questions (FAQ)

Q: Can the MC9S12P64VLH be used as a direct drop-in replacement for the DF36037FPV?

A: Yes, from a package and board-level perspective. Both devices use the 64-LQFP (10x10) package with identical pin counts and compatible pinout geometry. However, firmware validation is required due to architectural differences between the H8/300H and HCS12 processors.

Q: What are the key differences in connectivity between these devices?

A: The DF36037FPV provides CANbus, SCI, and SSU connectivity. The MC9S12P64VLH provides CANbus, SCI, and SPI connectivity. Applications using SSU must evaluate SPI compatibility or identify alternative solutions.

Q: Does the MC9S12P64VLH meet the voltage supply requirements of the DF36037FPV?

A: Yes. The DF36037FPV operates at 3V to 5.5V, while the MC9S12P64VLH operates at 1.72V to 5.5V. The substitute supports the full operating range of the original device and extends capability to lower voltages.

Q: Are there memory capacity concerns when substituting the MC9S12P64VLH?

A: No. The MC9S12P64VLH provides 64KB FLASH and 4K x 8 RAM, both exceeding the DF36037FPV specifications of 56KB FLASH and 3K x 8 RAM. Additional memory capacity does not create compatibility issues.

Q: What is the operating temperature range difference?

A: The DF36037FPV operates from -20°C to 75°C, while the MC9S12P64VLH operates from -40°C to 105°C. The substitute supports the original temperature range and extends capability to more extreme conditions.

Q: Are both devices RoHS3 compliant?

A: Yes. Both the DF36037FPV and MC9S12P64VLH are ROHS3 compliant with identical MSL ratings of 3 (168 Hours), ensuring compatibility with modern supply chain and manufacturing requirements.

Q: What is the primary advantage of selecting the MC9S12P64VLH?

A: The MC9S12P64VLH is actively manufactured, ensuring long-term availability and supply chain stability. The DF36037FPV is obsolete, making the substitute the only viable option for new production and ongoing system support.