Equivalent & Substitute Parts for DF38076RLP4V

Part Overview

The DF38076RLP4V is a 16-bit H8/300H SLP microcontroller manufactured by Renesas Electronics Corporation, featuring 52KB FLASH memory and operating at 4MHz. This device is actively produced and widely used in embedded applications requiring low-power operation across industrial and consumer segments. Substitute parts are identified when design requirements shift toward higher performance, expanded memory capacity, or enhanced peripheral integration while maintaining package compatibility and core functionality.

Key Parameters

Parameter	DF38076RLP4V
Manufacturer	Renesas Electronics Corporation
Core Processor	H8/300H
Core Size	16-Bit
Speed	4MHz
Program Memory Size	52KB FLASH
RAM Size	2K x 8
Number of I/O	55
Voltage Supply (Vcc/Vdd)	1.8V ~ 3.6V
Package Type	85-TFLGA (7x7)
Mounting Type	Surface Mount
Operating Temperature	-20°C ~ 75°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

The R5F111NEALA#U0 qualifies as a substitute based on the following alignment criteria:

Matching Parameters:

Manufacturer: Renesas Electronics Corporation (same source)
Core Size: 16-Bit (identical architecture class)
Number of I/O: 55 (identical pin count and functionality)
Mounting Type: Surface Mount (same assembly method)
Package Footprint: 85-pin LQFP-class (7x7mm, mechanically compatible)
Voltage Supply Range: 1.6V ~ 3.6V (overlaps with 1.8V ~ 3.6V requirement)
RoHS Status: ROHS3 Compliant (equivalent compliance)
Product Status: Active (current production)

Differentiation Parameters: The R5F111NEALA#U0 operates at higher performance (24MHz vs. 4MHz) with expanded memory (64KB FLASH, 8K RAM vs. 52KB FLASH, 2K RAM) and enhanced peripherals (includes D/A converters, LINbus, UART/USART). These represent functional enhancements rather than incompatibilities.

Parameter Comparison

Parameter	DF38076RLP4V	R5F111NEALA#U0	Compatibility Note
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Identical
Core Size	16-Bit	16-Bit	Identical
Speed	4MHz	24MHz	Substitute offers 6x performance increase
Program Memory Size	52KB FLASH	64KB FLASH	Substitute provides 12KB additional capacity
RAM Size	2K x 8	8K x 8	Substitute provides 4x RAM expansion
Number of I/O	55	55	Identical
Voltage Supply (Vcc/Vdd)	1.8V ~ 3.6V	1.6V ~ 3.6V	Substitute supports lower minimum voltage
Package Type	85-TFLGA (7x7)	85-VFLGA (7x7)	Same pin count and footprint; different ball grid variant
Operating Temperature	-20°C ~ 75°C	-40°C ~ 85°C	Substitute supports extended temperature range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Product Status	Active	Active	Both in current production

Engineering Selection Recommendations

Primary Part (DF38076RLP4V): Select when application requirements specify 4MHz operation, 52KB FLASH capacity, and 2KB RAM. This device is appropriate for cost-optimized designs with lower computational demands and established supply chain qualification.

Substitute Part (R5F111NEALA#U0): Select when design specifications require higher processing speed (24MHz), expanded program memory (64KB FLASH), or increased working memory (8KB RAM). This substitute is suitable for applications demanding enhanced computational capability or extended temperature operation (-40°C to 85°C). Both devices maintain identical I/O pin count (55) and package footprint compatibility (85-pin, 7x7mm), enabling direct PCB layout reuse with firmware adaptation.

Both parts carry ROHS3 compliance and active production status, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can R5F111NEALA#U0 directly replace DF38076RLP4V on existing PCBs?

A: Yes, from a physical and electrical standpoint. Both devices feature 85-pin packages with 7x7mm footprints and identical I/O pin counts (55). However, the substitute uses a VFLGA variant versus the original TFLGA, which may require minor solder profile adjustments. Firmware must be recompiled for the RL78 architecture and higher clock speed (24MHz vs. 4MHz).

Q: What are the key differences in memory architecture?

A: The DF38076RLP4V provides 52KB FLASH and 2KB RAM. The R5F111NEALA#U0 provides 64KB FLASH, 8KB RAM, and 8KB EEPROM. Applications requiring larger code footprints or runtime data storage benefit from the substitute's expanded memory.

Q: Are the processor cores compatible?

A: No. The DF38076RLP4V uses the H8/300H core, while the R5F111NEALA#U0 uses the RL78 core. These are distinct architectures requiring separate firmware development and toolchain support. Code cannot be directly ported without recompilation and functional validation.

Q: What is the voltage supply compatibility?

A: The DF38076RLP4V operates from 1.8V to 3.6V. The R5F111NEALA#U0 operates from 1.6V to 3.6V. The substitute supports lower minimum voltage, making it suitable for battery-powered applications operating below 1.8V.

Q: Does the substitute support the same peripheral interfaces?

A: Both devices support I2C and include LCD, POR, PWM, and WDT peripherals. The substitute adds CSI, LINbus, UART/USART, LVD, and D/A converters (2x8-bit). Applications requiring these additional interfaces benefit from the substitute's expanded peripheral set.

Q: What is the operating temperature range difference?

A: The DF38076RLP4V operates from -20°C to 75°C. The R5F111NEALA#U0 operates from -40°C to 85°C. The substitute is suitable for industrial and automotive applications requiring extended temperature operation.

Q: Are both parts currently in production?

A: Yes. Both the DF38076RLP4V and R5F111NEALA#U0 maintain Active product status with Renesas Electronics Corporation, ensuring continued availability and support.

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