Renesas Electronics RL78/G13 R5F100LFDFA#X0 Equivalent & Substitute Parts

Part Overview

The R5F100LFDFA#X0 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) surface mount package. The device integrates a 32MHz RL78 core processor with comprehensive connectivity options including CSI, I2C, LINbus, and UART/USART interfaces, along with peripheral functions such as DMA, LVD, POR, PWM, and WDT.

The R5F100LFDFA#X0 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary for design continuity, production planning, and long-term supply chain management when this component reaches end-of-life conditions.

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)
Program Memory Type	FLASH
EEPROM Size	8K x 8
RAM Size	8K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V
Data Converters	A/D 12x8/10b
Number of I/O	48
Connectivity	CSI, I2C, LINbus, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	64-LQFP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the R5F100LFDFA#X0 is determined by strict equivalence across the following critical parameters:

Series and Core Processor: Must be RL78/G13 with RL78 core
Memory Configuration: 96KB FLASH, 8KB EEPROM, 8KB RAM
Processing Speed: 32MHz operation
Voltage Supply Range: 1.6V ~ 5.5V
Connectivity and Peripherals: CSI, I2C, LINbus, UART/USART; DMA, LVD, POR, PWM, WDT
I/O Count: 48 I/O pins
Data Converters: A/D 12x8/10b
Operating Temperature Range: -40°C ~ 85°C
Mounting and Package Type: Surface Mount, 64-LQFP configuration

The identified substitute parts R5F100LFAFA#50 and R5F100LFAFB#50 maintain full parametric equivalence across all functional and electrical specifications. Differences are limited to packaging format (Tape & Reel versus bulk) and physical package dimensions (12x12 versus 10x10 LQFP footprint), which do not affect electrical functionality or pin configuration.

Parameter Comparison

Parameter	R5F100LFDFA#X0	R5F100LFAFA#50	R5F100LFAFB#50
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Series	RL78/G13	RL78/G13	RL78/G13
Core Processor	RL78	RL78	RL78
Core Size	16-Bit	16-Bit	16-Bit
Speed	32MHz	32MHz	32MHz
Program Memory Size	96KB (96K x 8)	96KB (96K x 8)	96KB (96K x 8)
Program Memory Type	FLASH	FLASH	FLASH
EEPROM Size	8K x 8	8K x 8	8K x 8
RAM Size	8K x 8	8K x 8	8K x 8
Voltage Supply (Vcc/Vdd)	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
Number of I/O	48	48	48
Connectivity	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
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	64-LQFP	64-LQFP	64-LQFP
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

Both R5F100LFAFA#50 and R5F100LFAFB#50 are direct functional equivalents to the obsolete R5F100LFDFA#X0. Selection between these substitutes should be based on the following criteria:

R5F100LFAFA#50 is recommended for new designs and production runs requiring active product status with established supply chain availability. This part is supplied in Tape & Reel (TR) packaging format and maintains the 64-LQFP (12x12) footprint, ensuring direct PCB layout compatibility with existing designs based on the original R5F100LFDFA#X0.

R5F100LFAFB#50 is functionally equivalent but features a 64-LFQFP (10x10) package footprint. This variant is also supplied in Tape & Reel format and carries Active product status. Selection of this part requires PCB layout modification to accommodate the smaller package dimensions, though all electrical and functional specifications remain identical.

Both substitute parts carry ROHS3 compliance and identical MSL ratings, ensuring compatibility with standard manufacturing and storage protocols. The choice between R5F100LFAFA#50 and R5F100LFAFB#50 depends on PCB design constraints and space optimization requirements rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Can R5F100LFAFA#50 and R5F100LFAFB#50 be used interchangeably with R5F100LFDFA#X0?

A: Both parts are parametric equivalents with identical electrical specifications, memory configuration, processing speed, and peripheral functionality. R5F100LFAFA#50 maintains the same 64-LQFP (12x12) footprint as the original part and requires no PCB modifications. R5F100LFAFB#50 uses a smaller 64-LFQFP (10x10) footprint and requires PCB layout changes.

Q: What is the difference between the packaging formats?

A: R5F100LFDFA#X0 and R5F100LFAFA#50 are supplied in standard packaging, while R5F100LFAFA#50 and R5F100LFAFB#50 are supplied in Tape & Reel (TR) format for automated assembly processes. Tape & Reel packaging does not affect component functionality or electrical performance.

Q: Are there any compliance or certification differences?

A: All three parts maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours). Both substitute parts carry REACH Unaffected status and ECCN classification 3A991A2, ensuring regulatory compatibility across manufacturing and distribution channels.

Q: Why is the original part marked as Obsolete?

A: The R5F100LFDFA#X0 has reached end-of-life status. The substitute parts R5F100LFAFA#50 and R5F100LFAFB#50 carry Active product status, ensuring continued availability and support from Renesas Electronics Corporation.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in RL78/G13 series designation, 16-bit core architecture, 32MHz processing speed, 96KB FLASH/8KB EEPROM/8KB RAM memory configuration, 1.6V–5.5V supply voltage range, 48 I/O pins, CSI/I2C/LINbus/UART connectivity, and -40°C to 85°C operating temperature range. Package footprint differences do not affect functional substitution.

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