R5F104FAAFP#X0 Equivalent & Substitute Parts

Part Overview

The R5F104FAAFP#X0 is a 16-bit RL78/G14 microcontroller manufactured by Renesas Electronics Corporation, featuring 16KB FLASH program memory, 4KB EEPROM, and 2.5KB RAM in a 44-LQFP surface mount package. This device operates at 32MHz with integrated connectivity options including CSI, I2C, LINbus, and UART/USART interfaces, along with peripheral functions such as DMA, LVD, POR, PWM, and WDT.

The R5F104FAAFP#X0 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this microcontroller architecture.

Key Parameters

Parameter	Value
Core Processor	RL78
Core Size	16-Bit
Speed	32MHz
Program Memory Size	16KB (16K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	2.5K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V
Number of I/O	31
Data Converters	A/D 10x8/10b
Connectivity	CSI, I2C, LINbus, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	44-LQFP (10x10)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the R5F104FAAFP#X0 is determined by strict equivalence across the following critical parameters:

Core Processor Architecture: RL78 processor family
Core Size: 16-Bit processing capability
Operating Frequency: 32MHz clock speed
Memory Configuration: 16KB FLASH program memory, 4KB EEPROM, 2.5KB RAM
I/O Count: 31 input/output pins
Connectivity Interfaces: CSI, I2C, LINbus, UART/USART support
Peripheral Set: DMA, LVD, POR, PWM, WDT functionality
Voltage Range: 1.6V ~ 5.5V supply compatibility
Package Format: 44-LQFP (10x10) surface mount configuration
Compliance Standards: ROHS3 compliance and MSL 3 rating

Substitute parts must maintain identical electrical specifications and mechanical compatibility across all listed parameters. Packaging format variations (such as Tape & Reel versus bulk) do not affect functional substitutability.

Parameter Comparison

Parameter	R5F104FAAFP#X0	R5F104FAAFP#50	R5F104FADFP#50
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Series	RL78/G14	RL78/G14	RL78/G14
Core Processor	RL78	RL78	RL78
Core Size	16-Bit	16-Bit	16-Bit
Speed	32MHz	32MHz	32MHz
Program Memory Size	16KB (16K x 8)	16KB (16K x 8)	16KB (16K x 8)
Program Memory Type	FLASH	FLASH	FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8
RAM Size	2.5K x 8	2.5K x 8	2.5K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V	1.6V ~ 5.5V	1.6V ~ 5.5V
Number of I/O	31	31	31
Data Converters	A/D 10x8/10b	A/D 10x8/10b	A/D 10x8/10b
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)
Package / Case	44-LQFP (10x10)	44-LQFP (10x10)	44-LQFP (10x10)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

The R5F104FAAFP#X0 is classified as Obsolete. Both substitute parts—R5F104FAAFP#50 and R5F104FADFP#50—maintain Active product status with Renesas Electronics Corporation, ensuring ongoing manufacturing support and availability.

R5F104FAAFP#50 is a direct manufacturer equivalent available in Tape & Reel packaging format, maintaining identical electrical and mechanical specifications. This part is suitable for production environments requiring standard packaging configurations.

R5F104FADFP#50 is a parametric equivalent offering identical functional and electrical characteristics. Both substitute parts carry ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

Selection between substitute parts should be based on packaging requirements and inventory availability. Both parts are functionally interchangeable with the obsolete R5F104FAAFP#X0 across all specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can R5F104FAAFP#50 and R5F104FADFP#50 be used interchangeably with R5F104FAAFP#X0?

A: Yes. Both substitute parts maintain identical core processor architecture, memory configuration, operating frequency, I/O count, connectivity interfaces, peripheral functions, voltage supply range, and package format. They are functionally equivalent for direct replacement applications.

Q: What is the difference between R5F104FAAFP#50 and R5F104FADFP#50?

A: Both parts are parametric equivalents with identical electrical specifications and memory configurations. The difference lies in the internal device designation (FAA versus FAD suffix), which does not affect functional compatibility or performance characteristics.

Q: Does packaging format affect substitutability?

A: No. R5F104FAAFP#50 is supplied in Tape & Reel format while R5F104FAAFP#X0 may use alternative packaging. Packaging format does not affect electrical performance or pin compatibility. Selection should be based on manufacturing process requirements and inventory handling procedures.

Q: Are these parts RoHS compliant?

A: Yes. All three parts—R5F104FAAFP#X0, R5F104FAAFP#50, and R5F104FADFP#50—are ROHS3 compliant and carry MSL 3 (168 Hours) moisture sensitivity ratings.

Q: What is the product status significance?

A: R5F104FAAFP#X0 is Obsolete, indicating discontinued manufacturing. R5F104FAAFP#50 and R5F104FADFP#50 are Active products with ongoing manufacturing support from Renesas Electronics Corporation, ensuring long-term availability and supply chain continuity.

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