R5F2138CCDFP#V0 Equivalent & Substitute Parts

Part Overview

The R5F2138CCDFP#V0 is a 16-bit microcontroller from Renesas Electronics Corporation's R8C/3x/38C series, featuring 128KB FLASH program memory, 10KB RAM, and 4KB EEPROM. This device integrates I2C, LINbus, SIO, SSU, and UART/USART connectivity with 75 I/O pins in an 80-LQFP package. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Identifying compatible alternatives ensures design continuity while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Core Processor	R8C
Core Size	16-Bit
Speed	20MHz
Program Memory Size	128KB (128K x 8) FLASH
EEPROM Size	4K x 8
RAM Size	10K x 8
Voltage Supply Range	1.8V ~ 5.5V
Number of I/O	75
Package Type	80-LQFP (12x12)
Operating Temperature	-40°C ~ 85°C
Connectivity	I2C, LINbus, SIO, SSU, UART/USART
Data Converters	A/D 20x10b; D/A 2x8b
Peripherals	POR, PWM, Voltage Detect, WDT

Substitute Part Grouping Explanation

Substitution eligibility for the R5F2138CCDFP#V0 is determined by strict alignment of the following critical parameters:

Core Architecture: R8C processor with 16-bit core size
Memory Configuration: 128KB FLASH, 10KB RAM, 4KB EEPROM
Clock Speed: 20MHz operation
Voltage Supply Range: 1.8V ~ 5.5V compatibility
Package Format: 80-LQFP (12x12) surface mount
I/O Count: 75 pins
Connectivity Interfaces: I2C, LINbus, SIO, SSU, UART/USART
Peripheral Set: POR, PWM, Voltage Detect, WDT

The R5F2138CSNFP#30 meets all substitution criteria, maintaining identical core specifications while differing in product status and environmental operating range.

Parameter Comparison

Parameter	R5F2138CCDFP#V0 (Main)	R5F2138CSNFP#30 (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Series	R8C/3x/38C	R8C/3x/38T-A
Core Processor	R8C	R8C
Core Size	16-Bit	16-Bit
Speed	20MHz	20MHz
Program Memory	128KB (128K x 8) FLASH	128KB (128K x 8) FLASH
EEPROM	4K x 8	4K x 8
RAM	10K x 8	10K x 8
Voltage Supply	1.8V ~ 5.5V	1.8V ~ 5.5V
Number of I/O	75	75
Package Type	80-LQFP (12x12)	80-LQFP (12x12)
Operating Temperature	-40°C ~ 85°C	-20°C ~ 85°C
Connectivity	I2C, LINbus, SIO, SSU, UART/USART	I2C, LINbus, SIO, SSU, UART/USART
Data Converters	A/D 20x10b; D/A 2x8b	A/D 20x10b
Peripherals	POR, PWM, Voltage Detect, WDT	POR, PWM, Voltage Detect, WDT
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

The R5F2138CSNFP#30 is a direct functional equivalent to the R5F2138CCDFP#V0 for applications requiring identical core architecture, memory capacity, and I/O configuration. Both devices maintain ROHS3 compliance and EAR99 export classification.

Key Considerations:

Product Status: The R5F2138CSNFP#30 is active production, providing supply continuity for the obsolete R5F2138CCDFP#V0.
Operating Temperature Range: The substitute operates from -20°C to 85°C versus -40°C to 85°C for the main part. Applications requiring operation below -20°C require the original part.
Data Converter Difference: The main part includes D/A 2x8b converters; the substitute includes only A/D 20x10b. Designs dependent on D/A functionality must retain the original part.
Moisture Sensitivity: MSL rating differs (1 versus 3), affecting storage and handling requirements during assembly.

Frequently Asked Questions (FAQ)

Q: Can R5F2138CSNFP#30 replace R5F2138CCDFP#V0 in all applications?

A: Substitution is valid for applications operating within -20°C to 85°C and not requiring D/A converter functionality. Applications requiring extended low-temperature operation (-40°C) or D/A conversion must use the original part.

Q: Are the package dimensions identical?

A: Yes. Both parts use 80-LQFP (12x12) surface mount packaging with identical pin counts and I/O configuration.

Q: What is the impact of different MSL ratings?

A: MSL 1 (unlimited) allows indefinite storage at any humidity. MSL 3 (168 hours) requires controlled storage conditions and limits shelf life to 168 hours at specified humidity levels. This affects procurement, inventory management, and assembly scheduling.

Q: Are both parts RoHS compliant?

A: Yes. Both R5F2138CCDFP#V0 and R5F2138CSNFP#30 are ROHS3 compliant and REACH unaffected.

Q: What connectivity interfaces are supported?

A: Both parts support I2C, LINbus, SIO, SSU, and UART/USART interfaces, ensuring protocol compatibility across designs.

Q: Is the voltage supply range identical?

A: Yes. Both devices operate across 1.8V to 5.5V supply voltage range, maintaining compatibility with standard industrial and consumer power domains.

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