R5F100LCDFB#X0 Equivalent & Substitute Parts

Part Overview

The R5F100LCDFB#X0 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, featuring 32KB FLASH memory, 4KB EEPROM, and 2KB RAM in a 64-LQFP package. This part is classified as obsolete. Identifying equivalent and substitute parts is necessary to support ongoing production requirements, legacy system maintenance, and supply chain continuity when the original part becomes unavailable.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Series	RL78/G13
Core Processor	RL78
Core Size	16-Bit
Speed	32MHz
Program Memory Size	32KB (32K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	2K 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)
Package / Case	64-LQFP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the R5F100LCDFB#X0 is determined by strict alignment with the following core parameters:

Processor Architecture: RL78 core processor
Memory Configuration: 32KB FLASH, 4KB EEPROM, 2KB RAM
Operating Frequency: 32MHz
I/O Count: 48 pins
Voltage Range: 1.6V ~ 5.5V
Package Type: 64-LQFP form factor
Connectivity & Peripherals: CSI, I2C, LINbus, UART/USART; DMA, LVD, POR, PWM, WDT

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes: Parts with identical electrical specifications and packaging, differing only in product status or tape & reel configuration.

Parametric Equivalents: Parts within the RL78 family that maintain identical core specifications (processor, memory, speed, I/O, voltage, connectivity, peripherals) but may differ in package dimensions or series designation.

Parameter Comparison

Parameter	R5F100LCDFB#X0	R5F100LCDFB#50	R5F100LCAFA#50	R5F100LCAFB#50	R5F100LCDFA#50	R5F109LCCJFB#50
Manufacturer	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas
Series	RL78/G13	RL78/G13	RL78/G13	RL78/G13	RL78/G13	RL78/F12
Core Processor	RL78	RL78	RL78	RL78	RL78	RL78
Core Size	16-Bit	16-Bit	16-Bit	16-Bit	16-Bit	16-Bit
Speed	32MHz	32MHz	32MHz	32MHz	32MHz	32MHz
Program Memory	32KB FLASH	32KB FLASH	32KB FLASH	32KB FLASH	32KB FLASH	32KB FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8
RAM Size	2K x 8	2K x 8	2K x 8	2K x 8	2K x 8	2K x 8
Number of I/O	48	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	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	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	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	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	-40°C ~ 85°C
Package / Case	64-LQFP	64-LQFP	64-LQFP	64-LQFP	64-LQFP	64-LQFP
Supplier Device Package	64-LFQFP (10x10)	64-LFQFP (10x10)	64-LQFP (12x12)	64-LFQFP (10x10)	64-LQFP (12x12)	64-LFQFP (10x10)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	Not specified	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

R5F100LCDFB#50: This part is the direct active equivalent of R5F100LCDFB#X0. It maintains identical electrical specifications and package dimensions (64-LFQFP 10x10). The primary distinction is product status (Active vs. Obsolete) and REACH compliance documentation. This is the preferred primary substitute for direct replacement applications.

R5F100LCAFA#50: This parametric equivalent maintains all core electrical specifications but differs in package dimensions (64-LQFP 12x12 vs. 10x10). Selection requires PCB layout verification to confirm physical compatibility. Tape & Reel packaging is available. REACH Unaffected status is documented.

R5F100LCAFB#50: This parametric equivalent maintains identical electrical specifications and package dimensions (64-LFQFP 10x10) to the original part. Tape & Reel packaging is available. REACH Unaffected status is documented. This part is functionally interchangeable with minimal design modification.

R5F100LCDFA#50: This parametric equivalent maintains all core electrical specifications but differs in package dimensions (64-LQFP 12x12 vs. 10x10). Selection requires PCB layout verification. REACH Unaffected status is documented.

R5F109LCCJFB#50: This part belongs to the RL78/F12 series rather than RL78/G13. While it maintains identical electrical specifications (processor, memory, speed, I/O, voltage, connectivity, peripherals), the series designation indicates potential firmware or peripheral behavior differences. Selection requires application-level compatibility assessment. REACH Unaffected status is documented.

Frequently Asked Questions (FAQ)

Q: Can R5F100LCDFB#50 be used as a direct replacement for R5F100LCDFB#X0?

A: Yes. R5F100LCDFB#50 is the direct active equivalent with identical electrical specifications and package dimensions (64-LFQFP 10x10). No design modifications are required.

Q: What is the difference between R5F100LCAFA#50 and R5F100LCAFB#50?

A: Both parts maintain identical electrical specifications. The difference is package dimensions: R5F100LCAFA#50 uses 64-LQFP (12x12), while R5F100LCAFB#50 uses 64-LFQFP (10x10). Selection depends on PCB layout compatibility.

Q: Can I use R5F100LCAFA#50 or R5F100LCDFA#50 if my PCB is designed for 64-LFQFP (10x10)?

A: No. These parts use 64-LQFP (12x12) packages, which have different physical dimensions. PCB redesign would be required.

Q: Is R5F109LCCJFB#50 compatible with applications designed for R5F100LCDFB#X0?

A: R5F109LCCJFB#50 maintains identical electrical specifications but belongs to the RL78/F12 series rather than RL78/G13. Series differences may affect firmware compatibility and peripheral behavior. Application-level assessment is required before selection.

Q: What does REACH Unaffected status mean?

A: REACH Unaffected indicates the part is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. All substitute parts listed carry this status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed, including the original R5F100LCDFB#X0, are ROHS3 compliant.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All parts carry MSL 3 (168 Hours), indicating standard moisture handling requirements for surface mount components.

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