DF36034FPV Equivalent & Substitute Parts

Part Overview

The DF36034FPV is a 16-bit H8/300H Tiny microcontroller manufactured by Renesas Electronics Corporation, featuring 32KB FLASH memory, 2KB RAM, and a 20MHz clock speed in a 64-LFQFP package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part integrates CANbus, SCI, and SSU connectivity with PWM and watchdog timer peripherals, suitable for embedded control applications requiring moderate processing capability and memory capacity.

Substiute Parts

DF36034FPV

Renesas Electronics CorporationIn Stock: 767DF36034FPV Datasheet

Current PartRFQ

S9S12P32J0MLH

NXP USA Inc.In Stock: 8300S9S12P32J0MLH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF36034FPV is determined by the following critical parameters:

• Memory Configuration: Program memory must be 32KB FLASH minimum with compatible RAM size (2KB x 8)
• Package Compatibility: 64-pin LFQFP/LQFP form factor with 10x10mm dimensions for PCB layout compatibility
• Electrical Specifications: Supply voltage range must encompass or exceed 3V ~ 5.5V operating window
• Core Architecture: 16-bit processor capability with equivalent or superior instruction set compatibility
• Connectivity & Peripherals: CANbus, SCI interface support, and PWM/watchdog timer functionality
• Compliance Standards: ROHS3 compliance and equivalent moisture sensitivity rating (MSL 3)

The S9S12P32J0MLH from NXP USA Inc. qualifies as a substitute based on matching memory capacity, package form factor, 16-bit architecture, and compliance certifications, despite differences in processor family, speed, and extended feature set.

Parameter Comparison

Engineering Selection Recommendations

The S9S12P32J0MLH serves as a viable substitute for the obsolete DF36034FPV based on the following engineering criteria:

Compliance & Availability: The S9S12P32J0MLH maintains ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment. The DF36034FPV's obsolete classification necessitates alternative sourcing for new production and system maintenance.

Memory & Package Alignment: Both devices feature identical 32KB FLASH and 2KB RAM configurations within matching 64-pin LQFP packages (10x10mm), ensuring PCB layout compatibility and memory-dependent firmware portability.

Electrical Compatibility: The S9S12P32J0MLH's supply voltage range (1.72V ~ 5.5V) encompasses the DF36034FPV requirement (3V ~ 5.5V), providing broader operational flexibility. Both devices maintain MSL 3 moisture sensitivity ratings.

Performance Considerations: The S9S12P32J0MLH operates at 32MHz versus the DF36034FPV's 20MHz, offering performance headroom. Extended operating temperature range (-40°C ~ 125°C) provides wider environmental coverage compared to the original part's -20°C ~ 75°C specification.

Architectural Differences: Processor family transition from H8/300H to HCS12 requires firmware evaluation and potential code adaptation. Connectivity differences (SCI/SSU versus SCI/SPI) and peripheral variations (LVD/POR addition) necessitate application-specific assessment.

Frequently Asked Questions (FAQ)

Q: Can the S9S12P32J0MLH directly replace the DF36034FPV without PCB modifications?

A: The 64-pin LQFP package form factor and 10x10mm dimensions enable direct socket compatibility. However, pin-level functional differences between H8/300H and HCS12 architectures require firmware porting and peripheral configuration validation.

Q: What are the key memory compatibility factors?

A: Both devices provide 32KB FLASH program memory and 2KB RAM, meeting identical memory requirements. EEPROM presence in the S9S12P32J0MLH (4K x 8) represents an additional feature not present in the DF36034FPV.

Q: How do connectivity differences affect substitution?

A: The DF36034FPV integrates CANbus, SCI, and SSU interfaces. The S9S12P32J0MLH provides CANbus, SCI, and SPI connectivity. Applications dependent on SSU functionality require alternative solutions or external interface adaptation.

Q: Are there voltage supply considerations for substitution?

A: The S9S12P32J0MLH's lower minimum supply voltage (1.72V) and higher maximum (5.5V) provide broader operational range. Systems designed for the DF36034FPV's 3V ~ 5.5V window operate within the S9S12P32J0MLH specification without modification.

Q: What compliance certifications apply to both parts?

A: Both devices maintain ROHS3 compliance and identical MSL 3 (168 Hours) moisture sensitivity ratings, ensuring equivalent handling and storage requirements.

Q: Does the speed difference (20MHz vs 32MHz) require design changes?

A: The S9S12P32J0MLH's higher clock speed provides performance margin. Timing-critical applications must validate that firmware execution and peripheral timing remain within specification.