DF38004FP10WV Equivalent & Substitute Parts

Part Overview

The DF38004FP10WV is an 8-bit H8/300L microcontroller manufactured by Renesas Electronics Corporation, featuring 32KB FLASH memory and a 64-LQFP package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance. The part operates at 10MHz with a supply voltage range of 1.8V to 5.5V and includes integrated peripherals such as LCD driver, PWM, and watchdog timer functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF38004FP10WV
Manufacturer	Renesas Electronics Corporation
Core Processor	H8/300L
Core Size	8-Bit
Program Memory Size	32KB (32K x 8) FLASH
RAM Size	1K x 8
Package / Case	64-LQFP (10x10)
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the DF38004FP10WV are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

Package type: 64-LQFP (10x10) form factor
Program memory capacity: 32KB FLASH minimum
Supply voltage range: Overlap with 1.8V ~ 5.5V specification
Mounting type: Surface Mount
RoHS compliance: ROHS3 Compliant

Identified Substitutes:

R5F10WLCAFB#50 (Renesas Electronics Corporation, RL78/L13 series) — Active product status with 32KB FLASH, 64-LQFP package, and extended connectivity options (CSI, I2C, LINbus, UART/USART).
S9S12P32J0MLH (NXP USA Inc., HCS12 series) — Active product status with 32KB FLASH, 64-LQFP package, and CANbus connectivity support.

Both substitutes maintain the 64-LQFP package footprint, 32KB FLASH memory capacity, and surface mount configuration. Voltage supply ranges and RoHS compliance align with the original specification requirements.

Parameter Comparison

Parameter	DF38004FP10WV	R5F10WLCAFB#50	S9S12P32J0MLH
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	NXP USA Inc.
Core Size	8-Bit	16-Bit	16-Bit
Speed	10MHz	24MHz	32MHz
Program Memory Size	32KB (32K x 8) FLASH	32KB (32K x 8) FLASH	32KB (32K x 8) FLASH
RAM Size	1K x 8	1.5K x 8	2K x 8
EEPROM Size	—	4K x 8	4K x 8
Number of I/O	39	42	49
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.6V ~ 5.5V	1.72V ~ 5.5V
Data Converters	A/D 4x10b	A/D 9x10b	A/D 10x12b
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 125°C (TA)
Package / Case	64-LQFP (10x10)	64-LQFP (10x10)	64-LQFP (10x10)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
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)

Engineering Selection Recommendations

R5F10WLCAFB#50 is recommended as the primary substitute for designs requiring continuity within the Renesas ecosystem. This RL78/L13 series microcontroller maintains manufacturer consistency, offers active product status with ongoing support, and provides enhanced peripheral integration including DMA, LVD, and POR functions. The 16-bit core architecture and 24MHz operating speed deliver improved performance headroom while maintaining the identical 64-LQFP package footprint and 32KB FLASH capacity.

S9S12P32J0MLH serves as an alternative substitute for applications requiring CANbus connectivity or extended operating temperature range (-40°C to 125°C). The HCS12 series from NXP provides the highest I/O count (49 pins) and fastest clock speed (32MHz), with superior analog-to-digital conversion capability (10x12-bit). This option is suitable for designs where cross-manufacturer qualification is acceptable and CANbus communication is a system requirement.

Both substitutes maintain ROHS3 compliance, MSL 3 rating, and surface mount configuration, ensuring compatibility with existing PCB assembly processes and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can R5F10WLCAFB#50 directly replace DF38004FP10WV without firmware modification?

A: The 64-LQFP package footprint is identical, enabling direct PCB-level substitution. However, the transition from 8-bit H8/300L to 16-bit RL78 architecture requires firmware porting. Instruction set, memory organization, and peripheral register maps differ between architectures.

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

A: R5F10WLCAFB#50 maintains Renesas architecture continuity with RL78 core, 24MHz speed, and enhanced LCD/DMA support. S9S12P32J0MLH offers NXP HCS12 architecture, 32MHz speed, CANbus connectivity, and extended temperature range to 125°C. Both provide 32KB FLASH and 64-LQFP packaging.

Q: Is the 64-LQFP package footprint identical across all three parts?

A: Yes. DF38004FP10WV, R5F10WLCAFB#50, and S9S12P32J0MLH all use 64-LQFP (10x10) package with identical pin pitch and body dimensions, permitting direct PCB layout reuse.

Q: Do the substitute parts support the same supply voltage range?

A: The original DF38004FP10WV operates at 1.8V ~ 5.5V. R5F10WLCAFB#50 supports 1.6V ~ 5.5V (lower minimum). S9S12P32J0MLH supports 1.72V ~ 5.5V. All three overlap the 1.8V ~ 5.5V range, ensuring compatibility with existing power supply designs.

Q: Are both substitutes RoHS3 compliant?

A: Yes. R5F10WLCAFB#50 and S9S12P32J0MLH are both ROHS3 Compliant with MSL 3 (168 Hours) rating, matching the original part's environmental and regulatory specifications.

Q: Which substitute is recommended for new designs?

A: Selection depends on system architecture preference and connectivity requirements. For Renesas ecosystem continuity, R5F10WLCAFB#50 is recommended. For applications requiring CANbus or extended temperature operation, S9S12P32J0MLH is appropriate. Both are active products with manufacturer support.

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