DF38099FP4V Equivalent & Substitute Parts

Part Overview

The DF38099FP4V is a 16-bit H8/300H microcontroller manufactured by Renesas Electronics Corporation, featuring 128KB FLASH memory and a 100-LFQFP package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design requirements and production continuity. The part operates at 4MHz with integrated peripherals including I2C, IrDA, SCI connectivity, LCD driver support, and PWM functionality, suitable for embedded control applications requiring low-power operation across the 1.8V to 3.6V supply range.

Substiute Parts

DF38099FP4V

Renesas Electronics CorporationIn Stock: 2072DF38099FP4V Datasheet

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MSP430F6433IPZR

Texas InstrumentsIn Stock: 2206MSP430F6433IPZR Datasheet

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STM32F205VBT6

STMicroelectronicsIn Stock: 10983STM32F205VBT6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DF38099FP4V are selected based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Program Memory Size: 128KB (128K x 8) FLASH
• Package / Case: 100-LQFP (14x14)
• Voltage Supply Range: 1.8V ~ 3.6V
• Mounting Type: Surface Mount
• RoHS3 Compliance

Secondary Compatibility Factors:

• Core Size: 16-Bit or higher
• Connectivity: I2C, IrDA, SCI support
• Peripherals: LCD, POR, PWM, WDT
• Operating Temperature Range: Minimum -20°C or lower

The substitute parts listed maintain identical or superior electrical specifications within the allowed parameters, ensuring pin-compatible or functionally equivalent operation in applications designed for the DF38099FP4V.

Parameter Comparison

Engineering Selection Recommendations

MSP430F6433IPZR (Texas Instruments): This substitute maintains 16-bit core architecture with identical 128KB FLASH and 1.8V–3.6V supply compatibility. The MSP430F6433IPZR operates at 20MHz with expanded RAM (10K x 8) and enhanced connectivity including LINbus, SPI, and UART/USART. Product status is active with full ROHS3 compliance and identical MSL rating. Operating temperature range extends to -40°C, providing broader environmental coverage than the original part.

STM32F205VBT6 (STMicroelectronics): This substitute provides 32-bit ARM Cortex-M3 architecture with identical 128KB FLASH and matching 1.8V–3.6V supply range. The STM32F205VBT6 operates at 120MHz with significantly expanded RAM (68K x 8) and comprehensive connectivity including CANbus, USB OTG, and MMC support. Product status is active with full ROHS3 compliance. Operating temperature range extends to -40°C. This option suits applications requiring higher processing performance and extended peripheral integration.

Both substitutes maintain identical package geometry (100-LQFP 14x14), surface mount configuration, and regulatory compliance status, enabling direct PCB compatibility with appropriate firmware adaptation.

Frequently Asked Questions (FAQ)

Q: Can the MSP430F6433IPZR directly replace the DF38099FP4V without PCB modifications?

A: Yes, the MSP430F6433IPZR maintains identical 100-LQFP (14x14) package geometry and pin count (100 pins), enabling direct PCB compatibility. However, pin function assignments differ between architectures, requiring firmware and schematic review to ensure correct signal routing.

Q: What are the key differences between the two substitute options?

A: The MSP430F6433IPZR maintains 16-bit architecture matching the original DF38099FP4V, while the STM32F205VBT6 provides 32-bit processing at significantly higher clock speed (120MHz vs. 4MHz). The STM32F205VBT6 offers expanded RAM (68K vs. 4K) and broader peripheral support including USB OTG and CANbus. Selection depends on application performance requirements and firmware compatibility.

Q: Are all three parts pin-compatible?

A: All three parts share identical 100-LQFP (14x14) package dimensions and pin count. However, internal pin function assignments differ between manufacturers and architectures. Pin-to-pin compatibility requires detailed datasheet cross-reference and schematic validation.

Q: Do the substitute parts support the same connectivity protocols as the DF38099FP4V?

A: Both substitutes support I2C, IrDA, and SCI connectivity specified in the original part. The MSP430F6433IPZR adds LINbus, SPI, and UART/USART. The STM32F205VBT6 adds CANbus, LINbus, MMC, SPI, UART/USART, and USB OTG. Applications using only I2C, IrDA, and SCI protocols will function with either substitute.

Q: What is the operating temperature range difference, and does it affect selection?

A: The DF38099FP4V operates from -20°C to 75°C, while both substitutes extend to -40°C to 85°C. For applications within the original -20°C to 75°C range, both substitutes provide equivalent thermal performance. Applications requiring operation below -20°C or above 75°C benefit from the expanded range of the substitute parts.

Q: Are all parts ROHS3 compliant?

A: Yes, the DF38099FP4V, MSP430F6433IPZR, and STM32F205VBT6 are all ROHS3 compliant with identical Moisture Sensitivity Level 3 (168 Hours) ratings, ensuring equivalent environmental and regulatory compliance.

Q: Which substitute is recommended for low-power applications?

A: The MSP430F6433IPZR is optimized for low-power operation with 16-bit architecture and 20MHz maximum speed, making it suitable for battery-powered and energy-constrained applications. The STM32F205VBT6, while capable of low-power modes, is designed for higher-performance applications requiring 32-bit processing and 120MHz operation.