DF38002FP4V Equivalent & Substitute Parts

Part Overview

The DF38002FP4V is an 8-bit microcontroller manufactured by Renesas, featuring the H8/300L core processor with 16KB FLASH memory and operating at 10MHz. This device is packaged in a 64-LFQFP (10x10) surface mount configuration and is classified as obsolete. The part supports Serial Communication Interface (SCI) connectivity with integrated LCD, PWM, and Watchdog Timer peripherals.

Due to its obsolete product status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and system maintenance. Substitute components must maintain functional compatibility through matching or exceeding core electrical and mechanical parameters while accommodating design integration requirements.

Key Parameters

Parameter	Value
Core Processor	H8/300L
Core Size	8-Bit
Operating Speed	10MHz
Program Memory	16KB FLASH (16K x 8)
RAM Size	1K x 8
Supply Voltage	2.7V ~ 3.6V
I/O Count	39
Package Type	64-LFQFP (10x10)
Operating Temperature	-20°C ~ 75°C
Data Converters	A/D 4x10b SAR
Connectivity	SCI
Peripherals	LCD, PWM, WDT

Substitute Part Grouping Explanation

Substitute parts for the DF38002FP4V are selected based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

Program Memory Size: 16KB FLASH (16K x 8) minimum
Package Type: 64-LFQFP or 64-LQFP (10x10) surface mount
Mounting Type: Surface Mount
I/O Pin Count: 38 or greater
RAM Size: 1K x 8 or greater
Supply Voltage Range: Must encompass or exceed 2.7V ~ 3.6V
Peripheral Support: LCD, PWM, and WDT functionality

Secondary Compatibility Factors:

Operating Temperature Range: Extended range preferred for design margin
Data Converter Capability: A/D conversion with minimum 10-bit resolution
Communication Interfaces: SCI or equivalent serial communication support
RoHS Compliance: Preferred for regulatory alignment

The substitute parts listed below meet or exceed these parameters while accommodating the obsolete status of the original component.

Parameter Comparison

Parameter	DF38002FP4V	R5F10WLAAFB#50	MC9S08LL16CLH
Manufacturer	Renesas	Renesas Electronics Corporation	NXP USA Inc.
Core Processor	H8/300L	RL78	S08
Core Size	8-Bit	16-Bit	8-Bit
Operating Speed	10MHz	24MHz	20MHz
Program Memory	16KB FLASH	16KB FLASH	16KB FLASH
RAM Size	1K x 8	1K x 8	2K x 8
EEPROM Size	—	4K x 8	—
Supply Voltage	2.7V ~ 3.6V	1.6V ~ 5.5V	1.8V ~ 3.6V
I/O Count	39	42	38
Package Type	64-LFQFP (10x10)	64-LFQFP (10x10)	64-LQFP (10x10)
Operating Temperature	-20°C ~ 75°C	-40°C ~ 85°C	-40°C ~ 85°C
Data Converters	A/D 4x10b SAR	A/D 9x10b	A/D 8x12b
Connectivity	SCI	CSI, I2C, LINbus, UART/USART	I2C, SCI, SPI
Peripherals	LCD, PWM, WDT	DMA, LCD, LVD, POR, PWM, WDT	LCD, LVD, POR, PWM, WDT
Product Status	Obsolete	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	—	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

R5F10WLAAFB#50 (Renesas RL78/L13 Series)

This substitute provides the closest architectural alignment within the Renesas product family. The RL78 core operates at 24MHz, exceeding the original 10MHz specification, and provides enhanced peripheral integration including DMA, LVD, and POR functions. The extended supply voltage range (1.6V ~ 5.5V) accommodates broader application requirements. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment. The 16-bit core architecture requires firmware adaptation but delivers superior processing capability. Tape & Reel packaging supports high-volume production environments.

MC9S08LL16CLH (NXP S08 Series)

This substitute maintains 8-bit core architecture compatibility with the original DF38002FP4V, minimizing firmware modification requirements. Operating at 20MHz provides performance headroom while the 2K x 8 RAM exceeds the original 1K specification. The S08 core includes I2C and SPI connectivity in addition to SCI support, expanding communication interface options. ROHS3 compliance and active product status ensure regulatory compliance and supply continuity. Operating temperature range extends to -40°C ~ 85°C, providing enhanced thermal margin. Tray packaging accommodates standard component handling procedures.

Both substitutes maintain the critical 64-pin LQFP package footprint, enabling direct PCB layout compatibility. Selection between these options depends on firmware architecture preferences and specific application requirements for processing speed and peripheral integration.

Frequently Asked Questions (FAQ)

Q: Can the DF38002FP4V be directly replaced with R5F10WLAAFB#50 without PCB modifications?

A: Yes, both devices use the 64-LFQFP (10x10) package with identical footprints. However, the 16-bit RL78 core requires firmware recompilation and validation. Pin-to-pin compatibility must be verified against specific application requirements, as peripheral assignments may differ between the H8/300L and RL78 architectures.

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

A: R5F10WLAAFB#50 uses a 16-bit RL78 core at 24MHz with enhanced peripherals and EEPROM, while MC9S08LL16CLH maintains 8-bit architecture at 20MHz with increased RAM. The RL78 option provides greater processing power and integrated EEPROM; the S08 option minimizes firmware changes due to core architecture similarity.

Q: Are both substitute parts RoHS compliant?

A: Yes, both R5F10WLAAFB#50 and MC9S08LL16CLH are ROHS3 compliant. The original DF38002FP4V is RoHS non-compliant, making either substitute preferable for new designs and regulatory compliance.

Q: What is the impact of the extended operating temperature range in the substitutes?

A: Both substitutes support -40°C ~ 85°C compared to the original -20°C ~ 75°C range. This provides additional thermal margin and enables deployment in wider environmental conditions without performance degradation.

Q: How do the data converter specifications compare?

A: The DF38002FP4V includes 4-channel 10-bit A/D converters. R5F10WLAAFB#50 provides 9-channel 10-bit A/D converters, while MC9S08LL16CLH offers 8-channel 12-bit A/D converters. Both substitutes exceed the original analog conversion capability.

Q: Are there packaging differences between the substitutes?

A: R5F10WLAAFB#50 is supplied in Tape & Reel (TR) packaging for automated assembly, while MC9S08LL16CLH is supplied in Tray packaging. Both are surface mount compatible with standard pick-and-place equipment.

Q: What connectivity options are available in each substitute?

A: The original DF38002FP4V supports SCI only. R5F10WLAAFB#50 adds CSI, I2C, LINbus, and UART/USART support. MC9S08LL16CLH adds I2C and SPI support alongside SCI. Both substitutes provide expanded communication interface options.

Q: Is firmware modification required when switching from DF38002FP4V to either substitute?

A: MC9S08LL16CLH requires minimal firmware changes due to 8-bit core compatibility, though peripheral register mappings must be validated. R5F10WLAAFB#50 requires comprehensive firmware recompilation and testing due to 16-bit core architecture differences.

Q: What is the moisture sensitivity level for the substitute parts?

A: Both R5F10WLAAFB#50 and MC9S08LL16CLH have MSL 3 rating (168 hours), indicating standard moisture handling procedures are required during storage and assembly.

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