R5F100LFDFA#V0 Equivalent & Substitute Parts

Part Overview

The R5F100LFDFA#V0 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, featuring 96KB FLASH memory, 8KB EEPROM, and 8KB RAM in a 64-LQFP (12x12) package. This part is currently obsolete, making equivalent substitute parts necessary for ongoing design support, production continuity, and component sourcing. Active equivalent variants maintain identical core functionality while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Series	RL78/G13
Core Processor	RL78
Core Size	16-Bit
Speed	32MHz
Program Memory Size	96KB (96K x 8) FLASH
EEPROM Size	8K x 8
RAM Size	8K x 8
Number of I/O	48
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V
Data Converters	A/D 12x8/10b
Connectivity	CSI, I2C, LINbus, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the R5F100LFDFA#V0 is determined by strict equivalence across the following critical parameters:

Core Functional Parameters (Must Match):

RL78/G13 series architecture
16-bit core processor (RL78)
32MHz operating speed
96KB FLASH program memory
8KB EEPROM
8KB RAM
48 I/O pins
1.6V ~ 5.5V supply voltage range
A/D 12x8/10b data converter configuration
Identical connectivity (CSI, I2C, LINbus, UART/USART)
Identical peripheral set (DMA, LVD, POR, PWM, WDT)
-40°C ~ 85°C operating temperature range
Surface mount technology
ROHS3 compliance
MSL 3 rating

Allowed Variation Parameters:

Product status (obsolete to active)
Packaging format (tray vs. other formats)
Package footprint dimensions (64-LQFP 12x12 vs. 64-LFQFP 10x10)
Supplier device package designation
REACH and ECCN classifications

The four substitute parts (R5F100LFAFA#10, R5F100LFAFA#30, R5F100LFAFB#10, R5F100LFAFB#30) maintain complete functional equivalence while differing only in packaging format and physical footprint dimensions.

Parameter Comparison

Parameter	R5F100LFDFA#V0	R5F100LFAFA#10	R5F100LFAFA#30	R5F100LFAFB#10	R5F100LFAFB#30
Manufacturer	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics	Renesas Electronics
Series	RL78/G13	RL78/G13	RL78/G13	RL78/G13	RL78/G13
Core Processor	RL78	RL78	RL78	RL78	RL78
Core Size	16-Bit	16-Bit	16-Bit	16-Bit	16-Bit
Speed	32MHz	32MHz	32MHz	32MHz	32MHz
Program Memory	96KB FLASH	96KB FLASH	96KB FLASH	96KB FLASH	96KB FLASH
EEPROM	8K x 8	8K x 8	8K x 8	8K x 8	8K x 8
RAM	8K x 8	8K x 8	8K x 8	8K x 8	8K x 8
I/O Count	48	48	48	48	48
Voltage Supply	1.6V ~ 5.5V	1.6V ~ 5.5V	1.6V ~ 5.5V	1.6V ~ 5.5V	1.6V ~ 5.5V
Data Converters	A/D 12x8/10b	A/D 12x8/10b	A/D 12x8/10b	A/D 12x8/10b	A/D 12x8/10b
Connectivity	CSI, I2C, LINbus, UART/USART	CSI, I2C, LINbus, UART/USART	CSI, I2C, LINbus, UART/USART	CSI, I2C, LINbus, UART/USART	CSI, I2C, LINbus, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	64-LQFP (12x12)	64-LQFP (12x12)	64-LQFP (12x12)	64-LFQFP (10x10)	64-LFQFP (10x10)
Packaging Format	Not specified	Tray	Tray	Tray	Tray
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the R5F100LFDFA#V0 and maintain active product status with full ROHS3 compliance. Selection between substitutes depends on PCB layout requirements and package footprint compatibility:

R5F100LFAFA#10 and R5F100LFAFA#30: These parts maintain the original 64-LQFP (12x12) package footprint, enabling direct PCB layout compatibility without redesign. The suffix difference (#10 vs. #30) indicates packaging quantity or tape configuration only and does not affect electrical or functional characteristics.

R5F100LFAFB#10 and R5F100LFAFB#30: These parts use a 64-LFQFP (10x10) package footprint, which is physically smaller than the original 12x12 package. PCB layout modification is required for these variants. The suffix difference (#10 vs. #30) indicates packaging quantity or tape configuration only.

For designs requiring no PCB modification, R5F100LFAFA variants are preferred. For space-constrained applications where the smaller 10x10 footprint is acceptable, R5F100LFAFB variants provide equivalent functionality in a reduced form factor. All variants are currently in active production with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can R5F100LFAFB parts replace R5F100LFAFA parts directly on the PCB?

A: No. R5F100LFAFB parts use a 64-LFQFP (10x10) package, while R5F100LFAFA parts use 64-LQFP (12x12). The different footprints require PCB layout modification. R5F100LFAFA variants are pin-compatible drop-in replacements for the original R5F100LFDFA#V0.

Q: What is the difference between #10 and #30 suffix variants?

A: The suffix designates packaging quantity or tape configuration and does not affect electrical performance, memory configuration, or functional capabilities. Both variants are functionally identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four substitute parts maintain ROHS3 compliance identical to the original R5F100LFDFA#V0.

Q: Why is the original R5F100LFDFA#V0 marked obsolete?

A: The original part has been superseded by active variants. The R5F100LFAFA and R5F100LFAFB series provide equivalent functionality with improved availability and ongoing manufacturing support.

Q: Can I use these substitutes in new designs?

A: Yes. All substitute parts are in active production status with confirmed inventory. They are suitable for both replacement of obsolete components and new design implementations.

Q: Do the substitute parts have identical memory configuration?

A: Yes. All substitute parts maintain 96KB FLASH, 8KB EEPROM, and 8KB RAM configuration identical to the original part.

Q: What is the MSL rating for these parts?

A: All parts, including substitutes, carry MSL 3 rating with 168-hour floor life, indicating standard moisture sensitivity handling requirements.

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