Renesas Electronics R5F104GDDFB#X0 RL78/G14 Microcontroller Equivalent & Substitute Parts

Part Overview

The Renesas Electronics R5F104GDDFB#X0 is a 16-bit RL78/G14 microcontroller featuring 48KB FLASH memory, 5.5KB RAM, and 4KB EEPROM in a 48-LFQFP (7x7) surface mount package. This device is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. The RL78/G14 series provides integrated connectivity options including CSI, I2C, LINbus, and UART/USART, along with peripheral functions such as DMA, LVD, POR, PWM, and WDT suitable for embedded control applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	R5F104GDDFB#X0
Manufacturer	Renesas Electronics Corporation
Series	RL78/G14
Core Processor	RL78
Core Size	16-Bit
Speed	32MHz
Program Memory Size	48KB (48K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	5.5K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V
Number of I/O	34
Connectivity	CSI, I2C, LINbus, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT
Data Converters	A/D 10x8/10b
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	48-LQFP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the R5F104GDDFB#X0 is determined by strict equivalence across the following critical parameters:

Core Architecture & Performance: RL78 core processor, 16-bit, 32MHz operation
Memory Configuration: 48KB FLASH, 4KB EEPROM, 5.5KB RAM
Electrical Specifications: 1.6V ~ 5.5V supply voltage range, identical I/O count (34 pins)
Connectivity & Peripherals: CSI, I2C, LINbus, UART/USART; DMA, LVD, POR, PWM, WDT functions
Package & Environmental: 48-LQFP surface mount package, -40°C ~ 85°C operating range, ROHS3 compliance, MSL 3

The identified substitute parts maintain full parametric equivalence across all electrical and functional specifications. Differences are limited to product status and packaging configuration (tape & reel versus standard packaging).

Parameter Comparison

Parameter	R5F104GDDFB#X0 (Main)	R5F104GDDFB#50 (Direct Substitute)	R5F104GDAFB#50 (Parametric Equivalent)
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	48KB (48K x 8)	48KB (48K x 8)	48KB (48K x 8)
Program Memory Type	FLASH	FLASH	FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8
RAM Size	5.5K x 8	5.5K x 8	5.5K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 5.5V	1.6V ~ 5.5V	1.6V ~ 5.5V
Number of I/O	34	34	34
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
Data Converters	A/D 10x8/10b	A/D 10x8/10b	A/D 10x8/10b
Oscillator Type	Internal	Internal	Internal
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	48-LQFP	48-LQFP	48-LQFP
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)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Discontinued at DiGi Electronics	Active	Active
Packaging Configuration	Standard	Standard	Tape & Reel (TR)

Engineering Selection Recommendations

R5F104GDDFB#50 is the primary direct substitute for the discontinued R5F104GDDFB#X0. Both parts share identical electrical specifications, memory configuration, and package format. The R5F104GDDFB#50 maintains active product status with Renesas Electronics, ensuring continued availability and support. This part is suitable for direct replacement in existing designs without modification.

R5F104GDAFB#50 is a parametric equivalent offering identical functional and electrical specifications. The distinction is packaging configuration: this part is supplied in Tape & Reel (TR) format, appropriate for high-volume automated assembly operations. Selection between R5F104GDDFB#50 and R5F104GDAFB#50 depends on procurement volume and assembly methodology. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for embedded microcontroller applications.

Frequently Asked Questions (FAQ)

Q: Can R5F104GDDFB#50 be used as a direct replacement for R5F104GDDFB#X0?

A: Yes. R5F104GDDFB#50 is a direct substitute with identical electrical specifications, memory configuration, I/O count, connectivity options, and package format. The primary difference is product status: R5F104GDDFB#50 is active, whereas the original part is discontinued.

Q: What is the difference between R5F104GDDFB#50 and R5F104GDAFB#50?

A: Both parts are parametrically equivalent with identical core specifications. The difference is packaging configuration: R5F104GDDFB#50 is supplied in standard packaging, while R5F104GDAFB#50 is supplied in Tape & Reel (TR) format. Selection depends on procurement volume and assembly requirements.

Q: Are the substitute parts compatible with existing PCB designs?

A: Yes. Both substitute parts use the 48-LQFP package with identical pin configuration and electrical characteristics. No PCB redesign is required for substitution.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the operating temperature range for these microcontrollers?

A: All parts operate across -40°C to 85°C (TA), suitable for industrial and commercial embedded applications.

Q: Are there any differences in memory specifications between the main part and substitutes?

A: No. All parts feature 48KB FLASH, 4KB EEPROM, and 5.5KB RAM with identical memory organization and access characteristics.

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