R5F104LCAFP#V0 Equivalent & Substitute Parts

Part Overview

The R5F104LCAFP#V0 is a 16-bit RL78/G14 microcontroller manufactured by Renesas Electronics Corporation, featuring 32KB FLASH memory, 4KB EEPROM, and 4KB RAM in a 64-LQFP (14x14) package. This device integrates a 32MHz RL78 core processor with comprehensive connectivity options including CSI, I2C, LINbus, and UART/USART interfaces, along with peripherals such as DMA, LVD, POR, PWM, and WDT functionality.

The R5F104LCAFP#V0 carries an obsolete product status. Equivalent and substitute parts within the RL78/G14 series remain actively manufactured and available, providing direct functional alternatives with identical core specifications and electrical parameters.

Key Parameters

Parameter	Value
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
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
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution within the RL78/G14 microcontroller family is determined by equivalence across the following critical parameters: core processor architecture (RL78), core size (16-Bit), clock speed (32MHz), program memory capacity (32KB FLASH), EEPROM size (4K x 8), RAM size (4K x 8), supply voltage range (1.6V ~ 5.5V), I/O count (48 pins), connectivity interfaces (CSI, I2C, LINbus, UART/USART), and peripheral feature set (DMA, LVD, POR, PWM, WDT).

Substitute parts are grouped into three package variants:

64-LQFP (14x14): R5F104LCAFP#30, R5F104LCAFP#10, R5F104LCDFP#30

64-LQFP (12x12): R5F104LCAFA#10, R5F104LCAFA#30, R5F104LCDFA#30

64-LFQFP (10x10): R5F104LCAFB#10, R5F104LCAFB#30, R5F104LCDFB#10

All substitute parts maintain identical electrical specifications, memory configuration, and functional capabilities. Differences are limited to package footprint dimensions and moisture sensitivity level (MSL) ratings. The suffix designations (#V0, #10, #30) indicate packaging and moisture sensitivity classifications only.

Parameter Comparison

Part Number	Manufacturer	Series	Core Processor	Speed (MHz)	Program Memory	EEPROM	RAM	I/O Count	Package	Package Dimensions	Product Status	MSL Rating	Inventory (Pcs)
R5F104LCAFP#V0	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	14x14	Obsolete	1 (Unlimited)	835
R5F104LCAFP#30	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	14x14	Active	3 (168 Hours)	744
R5F104LCAFP#10	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	14x14	Active	3 (168 Hours)	7500
R5F104LCAFA#10	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	12x12	Active	3 (168 Hours)	1584
R5F104LCAFA#30	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	12x12	Active	3 (168 Hours)	934
R5F104LCAFB#10	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LFQFP	10x10	Active	3 (168 Hours)	2370
R5F104LCAFB#30	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LFQFP	10x10	Active	3 (168 Hours)	1691
R5F104LCDFA#30	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	12x12	Active	3 (168 Hours)	925
R5F104LCDFB#10	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LFQFP	10x10	Active	3 (168 Hours)	952
R5F104LCDFP#30	Renesas Electronics	RL78/G14	RL78	32	32KB FLASH	4K x 8	4K x 8	48	64-LQFP	14x14	Active	3 (168 Hours)	686

Engineering Selection Recommendations

All substitute parts listed maintain active product status with Renesas Electronics Corporation, ensuring continued manufacturing support and availability. The R5F104LCAFP#V0 (obsolete status) can be directly replaced by any substitute part within the RL78/G14 family while maintaining full functional and electrical compatibility.

Selection between substitute variants depends on printed circuit board layout requirements and package footprint constraints:

For 14x14mm footprint compatibility: R5F104LCAFP#30, R5F104LCAFP#10, or R5F104LCDFP#30 provide direct mechanical and electrical substitution.

For 12x12mm footprint requirement: R5F104LCAFA#10, R5F104LCAFA#30, or R5F104LCDFA#30 offer equivalent functionality in a smaller package footprint.

For 10x10mm footprint requirement: R5F104LCAFB#10, R5F104LCAFB#30, or R5F104LCDFB#10 provide the most compact package option.

All substitute parts comply with ROHS3 and maintain REACH Unaffected status, matching the compliance profile of the original part. Moisture sensitivity level (MSL) ratings for active parts are classified as MSL 3 (168 Hours), compared to MSL 1 (Unlimited) for the obsolete original part. This difference reflects standard industry practice for active production components and does not affect functional performance under normal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can R5F104LCAFP#V0 be replaced with any of the listed substitute parts?

A: Yes. All substitute parts maintain identical core processor architecture, clock speed, memory configuration (32KB FLASH, 4KB EEPROM, 4KB RAM), I/O count (48 pins), connectivity interfaces, and peripheral feature set. Electrical specifications and operating temperature range (-40°C ~ 85°C) are identical across all variants.

Q: What is the difference between the package variants (14x14, 12x12, 10x10)?

A: Package dimensions differ only in physical footprint size. The 64-LQFP (14x14) variant is the largest, 64-LQFP (12x12) is intermediate, and 64-LFQFP (10x10) is the most compact. All three package types contain identical silicon and provide the same electrical functionality. Selection depends on available PCB space and design layout requirements.

Q: Are there any electrical differences between substitute parts?

A: No. All substitute parts operate at identical voltage supply range (1.6V ~ 5.5V), clock frequency (32MHz), and provide the same peripheral feature set. Data converter specifications (A/D 12x8/10b) are identical.

Q: What does the suffix designation (#V0, #10, #30) indicate?

A: Suffix designations indicate packaging classification and moisture sensitivity level (MSL) rating. The #V0 designation on the original part indicates MSL 1 (Unlimited). Active substitute parts carry #10 or #30 designations with MSL 3 (168 Hours) rating. These designations do not affect functional performance or electrical characteristics.

Q: Which substitute part offers the highest inventory availability?

A: R5F104LCAFP#10 currently maintains the highest inventory level at 7500 pieces, followed by R5F104LCAFB#10 at 2370 pieces. Both are actively manufactured and available for immediate procurement.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All substitute parts comply with ROHS3 standards and maintain REACH Unaffected status, matching the compliance profile of the original R5F104LCAFP#V0 part.

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