R5F104LCDFB#10 Equivalent & Substitute Parts

Part Overview

The R5F104LCDFB#10 is a 16-bit RL78/G14 microcontroller manufactured by Renesas Electronics Corporation. This embedded microcontroller IC features 32KB FLASH program memory, 4KB EEPROM, and 4KB RAM with a 32MHz operating frequency. The device is housed in a 64-LFQFP (10x10mm) surface mount package and operates across a supply voltage range of 1.6V to 5.5V with an operating temperature range of -40°C to 85°C.

The R5F104LCDFB#10 maintains Active product status and is ROHS3 compliant with REACH unaffected classification. Substitute parts are necessary when specific packaging configurations, lead frame variations, or tape reel specifications differ from design requirements while maintaining identical electrical and functional characteristics.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Series	RL78/G14
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	4K 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
Oscillator Type	Internal
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)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the R5F104LCDFB#10 is determined by strict equivalence across all electrical and functional parameters. The following parameters must remain identical for valid substitution:

Critical Equivalence Parameters:

Core Processor: RL78
Core Size: 16-Bit
Speed: 32MHz
Program Memory Size: 32KB (32K x 8) FLASH
EEPROM Size: 4K x 8
RAM Size: 4K x 8
Number of I/O: 48
Voltage Supply Range: 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
Package Type: 64-LQFP

Variable Parameters (Substitution Basis):

Supplier Device Package dimensions (10x10mm, 12x12mm, or 14x14mm)
Packaging format (Tray)
Lead frame suffix designation (#10, #30)

All substitute parts listed maintain identical electrical specifications and functional capabilities. Differences exist only in physical package dimensions and tape reel configurations, which are determined by the suffix designation and package code within the part number.

Parameter Comparison

Parameter	R5F104LCDFB#10	R5F104LCAFA#10	R5F104LCAFA#30	R5F104LCAFB#10	R5F104LCAFB#30	R5F104LCAFP#30
Manufacturer	Renesas	Renesas	Renesas	Renesas	Renesas	Renesas
Series	RL78/G14	RL78/G14	RL78/G14	RL78/G14	RL78/G14	RL78/G14
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 Size	32KB	32KB	32KB	32KB	32KB	32KB
Program Memory Type	FLASH	FLASH	FLASH	FLASH	FLASH	FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8
RAM Size	4K x 8	4K x 8	4K x 8	4K x 8	4K x 8	4K 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
Oscillator Type	Internal	Internal	Internal	Internal	Internal	Internal
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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	64-LQFP	64-LQFP	64-LQFP	64-LQFP	64-LQFP	64-LQFP
Supplier Device Package	64-LFQFP (10x10)	64-LQFP (12x12)	64-LQFP (12x12)	64-LFQFP (10x10)	64-LFQFP (10x10)	64-LQFP (14x14)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts maintain identical electrical specifications, functional capabilities, and regulatory compliance with the R5F104LCDFB#10. Selection among equivalent parts is determined by physical package dimensions and tape reel configuration requirements specific to manufacturing and assembly processes.

Compliance and Status Consistency: All substitute parts carry Active product status from Renesas Electronics Corporation. All parts maintain ROHS3 compliance and REACH unaffected classification, ensuring regulatory equivalence across all substitution options.

Package Dimension Considerations: The R5F104LCDFB#10 utilizes a 64-LFQFP (10x10mm) package. Substitute parts R5F104LCAFB#10 and R5F104LCAFB#30 maintain identical 10x10mm package dimensions. Parts R5F104LCAFA#10 and R5F104LCAFA#30 utilize 12x12mm package dimensions. Part R5F104LCAFP#30 utilizes 14x14mm package dimensions. Package dimension selection depends on printed circuit board layout constraints and assembly equipment specifications.

Tape Reel Configuration: The suffix designation (#10 or #30) indicates tape reel configuration. Selection between these options depends on pick-and-place equipment compatibility and production volume requirements.

Frequently Asked Questions (FAQ)

Q: What determines whether a part can substitute for the R5F104LCDFB#10?

A: Substitution is valid when all electrical and functional parameters remain identical: processor type, core size, clock speed, memory configuration (FLASH, EEPROM, RAM), I/O count, voltage range, connectivity interfaces, peripheral set, and operating temperature range. All listed substitute parts meet these criteria.

Q: Can I use R5F104LCAFA#10 in place of R5F104LCDFB#10?

A: Yes, from an electrical and functional standpoint. However, the R5F104LCAFA#10 features a 12x12mm package dimension compared to the 10x10mm package of the R5F104LCDFB#10. This difference requires verification of printed circuit board layout compatibility and assembly equipment capability.

Q: What is the difference between R5F104LCAFB#10 and R5F104LCAFB#30?

A: Both parts are electrically and functionally identical. The difference lies in tape reel configuration, indicated by the suffix designation. The #10 and #30 designations specify different tape reel specifications for automated assembly equipment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and REACH unaffected status, maintaining regulatory equivalence with the R5F104LCDFB#10.

Q: Which substitute part has the largest package footprint?

A: The R5F104LCAFP#30 features a 64-LQFP (14x14mm) package, the largest among all listed substitutes. The R5F104LCDFB#10 and R5F104LCAFB variants use 10x10mm packages, while R5F104LCAFA variants use 12x12mm packages.

Q: Do all substitute parts operate at the same clock speed?

A: Yes. All substitute parts operate at 32MHz, identical to the R5F104LCDFB#10.

Q: Can I interchange parts with different package dimensions on the same PCB?

A: No. Different package dimensions (10x10mm, 12x12mm, 14x14mm) require different PCB footprints and cannot be interchanged without PCB redesign.

Q: What is the moisture sensitivity level for all these parts?

A: All parts carry MSL 3 (168 Hours) rating, indicating identical moisture sensitivity and storage requirements.

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