DF38002FP4V Equivalent & Substitute Parts

Part Overview

The DF38002FP4V is an 8-bit microcontroller from Renesas Electronics Corporation, part of the H8® H8/300L SLP series. This device integrates 16KB FLASH program memory, 1KB RAM, and operates at 4MHz with a supply voltage range of 1.8V to 5.5V. The component is housed in a 64-LFQFP (10x10) package and features SCI connectivity with LCD, PWM, and WDT peripherals.

The DF38002FP4V is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance or redesign initiatives.

Key Parameters

Parameter	DF38002FP4V
Manufacturer	Renesas Electronics Corporation
Core Processor	H8/300L
Core Size	8-Bit
Speed	4MHz
Program Memory Size	16KB (16K x 8) FLASH
RAM Size	1K x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V
Package / Case	64-LQFP
Operating Temperature	-20°C ~ 75°C (TA)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution logic for the DF38002FP4V is based on the following critical parameters:

Package Compatibility: All substitute parts must use the 64-LQFP (10x10) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.
Program Memory: Substitute parts must provide a minimum of 16KB FLASH memory to maintain functional equivalence.
Voltage Supply Range: Substitute parts must operate within or encompass the 1.8V to 5.5V supply voltage range of the original part.
Core Architecture: While the original part uses an 8-bit H8/300L core, substitute parts may employ alternative 8-bit or 16-bit architectures provided they meet memory and connectivity requirements.
Compliance: All substitute parts must maintain ROHS3 compliance and equivalent regulatory certifications (REACH, ECCN, HTSUS).

Two substitute parts have been identified based on these criteria:

R5F10WLAAFB#50 (Renesas Electronics Corporation, RL78/L13 series) – Active product status, 16-bit core, 16KB FLASH, 64-LFQFP package.
MC9S08LL16CLH (NXP USA Inc., S08 series) – Active product status, 8-bit core, 16KB FLASH, 64-LQFP package.

Parameter Comparison

Parameter	DF38002FP4V	R5F10WLAAFB#50	MC9S08LL16CLH
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	NXP USA Inc.
Series	H8® H8/300L SLP	RL78/L13	S08
Core Processor	H8/300L	RL78	S08
Core Size	8-Bit	16-Bit	8-Bit
Speed	4MHz	24MHz	20MHz
Program Memory Size	16KB (16K x 8) FLASH	16KB (16K x 8) FLASH	16KB (16K x 8) FLASH
RAM Size	1K x 8	1K x 8	2K x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.6V ~ 5.5V	1.8V ~ 3.6V
Number of I/O	39	42	38
Data Converters	A/D 4x10b	A/D 9x10b	A/D 8x12b
Package / Case	64-LQFP	64-LQFP	64-LQFP
Operating Temperature	-20°C ~ 75°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001	8542.31.0001

Engineering Selection Recommendations

Both identified substitute parts maintain active product status, ensuring long-term availability and supply chain stability compared to the obsolete DF38002FP4V.

R5F10WLAAFB#50 is a Renesas Electronics Corporation product within the same manufacturer ecosystem. It provides a 16-bit RL78 core architecture with enhanced processing capability (24MHz versus 4MHz), expanded I/O count (42 versus 39), and increased analog-to-digital converter channels (9x10b versus 4x10b). The voltage supply range (1.6V ~ 5.5V) encompasses the original specification. This part is suitable for applications requiring higher performance and expanded peripheral integration while maintaining Renesas platform continuity.

MC9S08LL16CLH is an NXP USA Inc. product maintaining the 8-bit core architecture of the original part. It operates at 20MHz with equivalent 16KB FLASH memory and provides comparable I/O count (38 versus 39). The voltage supply range (1.8V ~ 3.6V) is narrower than the original specification, limiting operation at higher supply voltages. This part is suitable for applications requiring architectural compatibility with 8-bit processing and lower supply voltage operation.

Both parts comply with ROHS3, REACH, EAR99, and HTSUS classifications, matching the regulatory profile of the original component. Both maintain MSL 3 moisture sensitivity levels.

Frequently Asked Questions (FAQ)

Q: Can the R5F10WLAAFB#50 directly replace the DF38002FP4V without firmware modification?

A: The R5F10WLAAFB#50 uses a different core architecture (16-bit RL78 versus 8-bit H8/300L) and different instruction set. Firmware recompilation and validation are required. The identical 64-LQFP package and 16KB FLASH memory enable hardware-level compatibility, but software porting is necessary.

Q: What is the primary limitation of the MC9S08LL16CLH as a substitute?

A: The MC9S08LL16CLH operates within a narrower voltage supply range (1.8V ~ 3.6V) compared to the original DF38002FP4V (1.8V ~ 5.5V). Applications requiring operation above 3.6V supply voltage cannot use this substitute without circuit redesign.

Q: Are all substitute parts available in the same packaging format?

A: Yes. Both R5F10WLAAFB#50 and MC9S08LL16CLH use the 64-LQFP (10x10) surface mount package, ensuring mechanical compatibility with existing PCB layouts designed for the DF38002FP4V.

Q: Do the substitute parts maintain equivalent peripheral functionality?

A: Both substitute parts provide LCD, PWM, and WDT peripherals present in the original DF38002FP4V. The R5F10WLAAFB#50 adds DMA and LVD capabilities. Connectivity options differ: the original uses SCI, while R5F10WLAAFB#50 provides CSI, I2C, LINbus, and UART/USART; MC9S08LL16CLH provides I2C, SCI, and SPI.

Q: Are all parts RoHS3 compliant?

A: Yes. The DF38002FP4V, R5F10WLAAFB#50, and MC9S08LL16CLH are all ROHS3 compliant with REACH unaffected status and EAR99 ECCN classification.

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