R5F2136CSNFP#V0 Equivalent & Substitute Parts

Part Overview

The R5F2136CSNFP#V0 is a 16-bit microcontroller from Renesas featuring 128KB FLASH memory, 64-pin LFQFP packaging, and integrated connectivity interfaces including I2C, LINbus, SIO, SSU, and UART/USART. This device operates at 20MHz with a supply voltage range of 1.8V to 5.5V and is rated for industrial temperature ranges from -20°C to 85°C.

The R5F2136CSNFP#V0 is classified as obsolete. Identifying equivalent substitute parts is necessary to support ongoing production requirements, maintenance operations, and system redesigns where component availability is constrained.

Key Parameters

Parameter	Value
Core Processor	R8C
Core Size	16-Bit
Speed	20MHz
Program Memory Size	128KB (128K x 8)
Program Memory Type	FLASH
EEPROM Size	4K x 8
RAM Size	10K x 8
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V
Data Converters	A/D 12x10b
Number of I/O	59
Connectivity	I2C, LINbus, SIO, SSU, UART/USART
Peripherals	POR, PWM, Voltage Detect, WDT
Operating Temperature	-20°C ~ 85°C (TA)
Mounting Type	Surface Mount
Oscillator Type	Internal

Substitute Part Grouping Explanation

Substitute parts for the R5F2136CSNFP#V0 are identified based on electrical and functional equivalence within the R8C microcontroller family. The substitution criteria are strictly limited to the following parameters:

Core Electrical Parameters:

Core Processor: R8C
Core Size: 16-Bit
Speed: 20MHz
Program Memory: 128KB FLASH (128K x 8)
EEPROM: 4K x 8
RAM: 10K x 8
Voltage Supply Range: 1.8V ~ 5.5V
Data Converters: A/D 12x10b
Number of I/O: 59
Connectivity Interfaces: I2C, LINbus, SIO, SSU, UART/USART
Peripherals: POR, PWM, Voltage Detect, WDT
Operating Temperature: -20°C ~ 85°C (TA)

Mechanical Parameters:

Mounting Type: Surface Mount
Oscillator Type: Internal

Substitute parts must match all core electrical parameters and maintain surface mount compatibility. Package form factor differences (LFQFP 10x10 versus LQFP 14x14) are permitted when electrical specifications remain identical, as these represent different physical implementations of the same functional device.

Parameter Comparison

Parameter	R5F2136CSNFP#V0 (Main)	R5F2136CSNFA#30 (Substitute)	R5F2136CSNFA#50 (Substitute)
Manufacturer	Renesas	Renesas Electronics Corporation	Renesas Electronics Corporation
Core Processor	R8C	R8C	R8C
Core Size	16-Bit	16-Bit	16-Bit
Speed	20MHz	20MHz	20MHz
Program Memory Size	128KB (128K x 8)	128KB (128K x 8)	128KB (128K x 8)
Program Memory Type	FLASH	FLASH	FLASH
EEPROM Size	4K x 8	4K x 8	4K x 8
RAM Size	10K x 8	10K x 8	10K x 8
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Data Converters	A/D 12x10b	A/D 12x10b	A/D 12x10b
Number of I/O	59	59	59
Connectivity	I2C, LINbus, SIO, SSU, UART/USART	I2C, LINbus, SIO, SSU, UART/USART	I2C, LINbus, SIO, SSU, UART/USART
Peripherals	POR, PWM, Voltage Detect, WDT	POR, PWM, Voltage Detect, WDT	POR, PWM, Voltage Detect, WDT
Operating Temperature	-20°C ~ 85°C (TA)	-20°C ~ 85°C (TA)	-20°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Oscillator Type	Internal	Internal	Internal
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Supplier Device Package	64-LFQFP (10x10)	64-LQFP (14x14)	64-LQFP (14x14)
Moisture Sensitivity Level (MSL)	Not specified	3 (168 Hours)	3 (168 Hours)
REACH Status	Vendor Undefined	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The R5F2136CSNFA#30 and R5F2136CSNFA#50 are functionally equivalent substitutes for the R5F2136CSNFP#V0 based on identical core electrical specifications and processor architecture.

Product Status Consideration: The main part R5F2136CSNFP#V0 is classified as obsolete, while both substitute parts R5F2136CSNFA#30 and R5F2136CSNFA#50 maintain active product status. Active status ensures continued availability and manufacturing support from Renesas Electronics Corporation.

Compliance and Regulatory Status: Both substitute parts are ROHS3 compliant and REACH unaffected, representing current regulatory compliance standards. The main part is RoHS non-compliant and has undefined REACH status, indicating it does not meet modern environmental and chemical restriction requirements. Substitute parts include specified Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours), providing clear handling and storage requirements.

Package Considerations: The main part uses 64-LFQFP (10x10) packaging, while substitute parts use 64-LQFP (14x14) packaging. Both are 64-pin LQFP variants with identical pin counts and electrical functionality. PCB layout modifications are required to accommodate the different physical dimensions.

Selection Basis: Selection between R5F2136CSNFA#30 and R5F2136CSNFA#50 should be based on inventory availability and procurement lead times, as both parts are electrically and functionally identical. Current inventory levels are 943 units for R5F2136CSNFA#30 and 639 units for R5F2136CSNFA#50.

Frequently Asked Questions (FAQ)

Q: Are the R5F2136CSNFA#30 and R5F2136CSNFA#50 truly equivalent to the R5F2136CSNFP#V0?

A: Yes. Both substitute parts match all core electrical parameters including processor architecture, memory configuration, clock speed, voltage supply range, I/O count, connectivity interfaces, and peripheral features. Functional equivalence is confirmed across all specified parameters.

Q: What is the primary difference between the main part and the substitute parts?

A: The primary differences are product status, regulatory compliance, and physical package dimensions. The main part is obsolete and RoHS non-compliant. The substitute parts are active products with ROHS3 compliance and REACH unaffected status. The package changes from 64-LFQFP (10x10) to 64-LQFP (14x14), requiring PCB layout modifications.

Q: Can I use R5F2136CSNFA#30 and R5F2136CSNFA#50 interchangeably?

A: Yes, from an electrical and functional standpoint. Both parts are identical in all core specifications. Selection should be based on inventory availability and procurement requirements.

Q: What does the package dimension change from 10x10 to 14x14 mean for my design?

A: The 64-LQFP (14x14) package is physically larger than the 64-LFQFP (10x10) package. PCB footprint, trace routing, and component placement must be redesigned to accommodate the larger package dimensions. Pin assignments remain identical.

Q: Why is RoHS3 compliance important for the substitute parts?

A: ROHS3 compliance indicates the substitute parts meet current European Union Restriction of Hazardous Substances regulations. This is required for products sold in regulated markets and ensures compliance with environmental and health standards.

Q: What is Moisture Sensitivity Level (MSL) 3, and why does it matter?

A: MSL 3 indicates the component can be exposed to moisture for up to 168 hours at specified temperature and humidity conditions before soldering. This rating determines proper storage, handling, and shelf-life requirements to prevent moisture-induced failures during assembly.

Q: Are there any functional differences in the connectivity interfaces between the main part and substitutes?

A: No. All three parts feature identical connectivity: I2C, LINbus, SIO, SSU, and UART/USART. Peripheral features including POR, PWM, Voltage Detect, and WDT are also identical.

Q: What is the significance of the base product number R5F2136C?

A: The base product number R5F2136C identifies the core microcontroller design family. All three parts share this base designation, confirming they are variants within the same product line with identical core functionality.

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