Equivalent & Substitute Parts for R5F563NFHDFC#V0

Part Overview

The R5F563NFHDFC#V0 is a 32-bit single-core RX600 microcontroller manufactured by Renesas Electronics Corporation. This embedded IC features 2MB FLASH memory, 256KB RAM, and 100MHz operating speed in a 176-LFQFP surface mount package. The device is actively produced and widely used in industrial control, automotive, and communication applications requiring CANbus, Ethernet, and USB connectivity.

Substitute parts are identified when equivalent electrical and mechanical specifications are available from alternative manufacturers, enabling design flexibility and supply chain continuity while maintaining functional compatibility within the same application category.

Key Parameters

Parameter	Value
Core Processor	RX (32-Bit Single-Core)
Operating Speed	100MHz
Program Memory (FLASH)	2MB (2M x 8)
RAM Size	256K x 8
EEPROM Size	32K x 8
Supply Voltage	2.7V ~ 3.6V
Package Type	176-LFQFP (24x24)
I/O Count	133
Operating Temperature	-40°C ~ 85°C
Connectivity	CANbus, EBI/EMI, Ethernet, I2C, LINbus, SCI, SPI, USB
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the R5F563NFHDFC#V0 is evaluated based on the following critical parameters:

Memory Configuration: Program FLASH size of 2MB and RAM size of 256KB are mandatory equivalence criteria
Package Compatibility: 176-LFQFP (24x24) surface mount package ensures mechanical and thermal compatibility
Electrical Specifications: Supply voltage range, operating temperature range, and core bit-width (32-bit) must align
Connectivity Interfaces: Presence of CANbus, Ethernet, I2C, SPI, and USB interfaces determines functional substitutability
Compliance Standards: RoHS3 compliance and equivalent moisture sensitivity level (MSL 3) ensure regulatory and manufacturing process compatibility

The STM32F437IIT6 meets these substitution criteria through equivalent memory capacity, identical package footprint, overlapping voltage and temperature specifications, and comparable peripheral integration.

Parameter Comparison

Parameter	R5F563NFHDFC#V0 (Renesas)	STM32F437IIT6 (STMicroelectronics)
Core Processor	RX (32-Bit Single-Core)	ARM® Cortex®-M4 (32-Bit Single-Core)
Operating Speed	100MHz	180MHz
Program Memory (FLASH)	2MB (2M x 8)	2MB (2M x 8)
RAM Size	256K x 8	256K x 8
EEPROM Size	32K x 8	Not Available
Supply Voltage	2.7V ~ 3.6V	1.8V ~ 3.6V
Package Type	176-LFQFP (24x24)	176-LQFP (24x24)
I/O Count	133	140
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Data Converters (A/D)	8x10b, 21x12b	24x12b
Data Converters (D/A)	2x10b	2x12b
Connectivity	CANbus, EBI/EMI, Ethernet, I2C, LINbus, SCI, SPI, USB	CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, SPI, UART/USART, USB OTG
Peripherals	DMA, LVD, POR, PWM, WDT	Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

Both the R5F563NFHDFC#V0 and STM32F437IIT6 maintain active product status and ROHS3 compliance, qualifying them for equivalent use in new designs and production environments. The STM32F437IIT6 offers higher processing speed (180MHz versus 100MHz) and extended peripheral integration including I2S and LCD controller functionality. The R5F563NFHDFC#V0 provides integrated EEPROM (32K x 8), which is absent in the STM32F437IIT6 and may require external memory implementation in substitute designs.

Selection between these parts depends on application-specific requirements: retain the R5F563NFHDFC#V0 when on-chip EEPROM is mandatory; select the STM32F437IIT6 when higher processing performance and advanced peripheral features are beneficial and external EEPROM implementation is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the STM32F437IIT6 directly replace the R5F563NFHDFC#V0 in existing designs?

A: Direct PCB-level replacement is possible due to identical 176-LQFP package footprint and pin count (176 pins). However, firmware recompilation is required due to different processor architectures (RX versus ARM Cortex-M4). The absence of integrated EEPROM in the STM32F437IIT6 necessitates external memory addition if the application depends on on-chip EEPROM functionality.

Q: What are the voltage compatibility considerations?

A: The R5F563NFHDFC#V0 operates within 2.7V to 3.6V, while the STM32F437IIT6 supports 1.8V to 3.6V. Both devices function correctly in standard 3.3V supply systems. The STM32F437IIT6 offers extended low-voltage operation capability, beneficial for battery-powered applications.

Q: Are the connectivity interfaces equivalent?

A: Both devices include CANbus, Ethernet, I2C, SPI, and USB interfaces. The STM32F437IIT6 adds IrDA and USB OTG support, while the R5F563NFHDFC#V0 includes LINbus and SCI interfaces. Application-specific interface requirements determine suitability for substitution.

Q: What is the impact of different operating speeds?

A: The STM32F437IIT6 operates at 180MHz compared to the R5F563NFHDFC#V0 at 100MHz. Higher speed enables faster computation and reduced latency but does not affect functional compatibility. Thermal and power consumption characteristics may differ; application-specific performance requirements should guide selection.

Q: Are there compliance or certification differences?

A: Both parts maintain ROHS3 compliance and identical MSL 3 (168 Hours) moisture sensitivity ratings, ensuring equivalent manufacturing process compatibility and regulatory acceptance in standard industrial and commercial applications.

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