Equivalent & Substitute Parts for R5F3650MDFB#30

Part Overview

The R5F3650MDFB#30 is a 16-bit microcontroller from Renesas Electronics Corporation's M16C series, featuring 512KB FLASH memory and designed for embedded applications requiring moderate processing capability and peripheral connectivity. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Organizations currently using this component in production or maintenance applications require qualified substitute parts that maintain electrical and mechanical compatibility while offering improved availability or product status.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Core Processor	M16C/60
Core Size	16-Bit
Speed	32MHz
Program Memory Size	512KB (512K x 8) FLASH
EEPROM Size	8K x 8
RAM Size	31K x 8
Voltage Supply Range	2.7V ~ 5.5V
Data Converters	A/D 26x10b; D/A 2x8b
Connectivity	EBI/EMI, I2C, SIO, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT
Number of I/O	85
Operating Temperature	-40°C ~ 85°C (TA)
Package Type	100-LQFP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the R5F3650MDFB#30 is determined by strict equivalence across the following critical parameters:

Core Electrical Parameters: Core processor (M16C/60), core size (16-Bit), operating frequency (32MHz), program memory capacity (512KB FLASH), EEPROM size (8K x 8), and RAM size (31K x 8) must remain identical. The voltage supply range (2.7V ~ 5.5V), data converter specifications (A/D 26x10b; D/A 2x8b), connectivity interfaces (EBI/EMI, I2C, SIO, UART/USART), and peripheral set (DMA, LVD, POR, PWM, WDT) must match exactly.

Mechanical Parameters: Package type (100-LQFP), mounting type (Surface Mount), and I/O count (85) must be identical to ensure PCB compatibility without redesign.

Compliance Parameters: RoHS3 compliance and Moisture Sensitivity Level (MSL 3, 168 Hours) must be maintained.

The identified substitute parts meet all these criteria while differing only in product status or packaging designation, which do not affect functional or mechanical compatibility.

Parameter Comparison

Parameter	R5F3650MDFB#30	R5F3650MCDFB#30	R5F3650MDFB#10
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Series	M16C™ M16C/60/65	M16C™ M16C/60/65C	M16C™ M16C/60/65
Product Status	Not For New Designs	Active	Active
Core Processor	M16C/60	M16C/60	M16C/60
Core Size	16-Bit	16-Bit	16-Bit
Speed	32MHz	32MHz	32MHz
Program Memory Size	512KB (512K x 8) FLASH	512KB (512K x 8) FLASH	512KB (512K x 8) FLASH
EEPROM Size	8K x 8	8K x 8	8K x 8
RAM Size	31K x 8	31K x 8	31K x 8
Voltage Supply Range	2.7V ~ 5.5V	2.7V ~ 5.5V	2.7V ~ 5.5V
Data Converters	A/D 26x10b; D/A 2x8b	A/D 26x10b; D/A 2x8b	A/D 26x10b; D/A 2x8b
Connectivity	EBI/EMI, I2C, SIO, UART/USART	EBI/EMI, I2C, SIO, UART/USART	EBI/EMI, I2C, SIO, UART/USART
Peripherals	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT	DMA, LVD, POR, PWM, WDT
Number of I/O	85	85	85
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package Type	100-LQFP	100-LQFP	100-LQFP
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Inventory Status	1209 Pcs New Original In Stock	682 Pcs New Original In Stock	990 Pcs New Original In Stock

Engineering Selection Recommendations

Both R5F3650MCDFB#30 and R5F3650MDFB#10 are qualified substitutes for the R5F3650MDFB#30 based on complete electrical and mechanical parameter equivalence.

R5F3650MCDFB#30 offers the advantage of Active product status, indicating ongoing manufacturer support and continued availability. This part is recommended for applications requiring long-term supply assurance and manufacturer technical support.

R5F3650MDFB#10 maintains Active product status and provides equivalent functionality. The primary distinction is packaging designation (#10 versus #30), which does not affect electrical performance or mechanical compatibility. This part is suitable for applications with equivalent supply and support requirements.

Both substitute parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with current manufacturing and storage protocols. Selection between the two substitutes should be based on inventory availability, lead time requirements, and organizational procurement preferences.

Frequently Asked Questions (FAQ)

Q: Can R5F3650MCDFB#30 or R5F3650MDFB#10 be used as direct replacements for R5F3650MDFB#30 without PCB modification?

A: Yes. Both substitute parts are mechanically and electrically equivalent. The 100-LQFP package, pin count (85 I/O), and pinout are identical, enabling direct PCB substitution without layout changes.

Q: What is the significance of the product status difference between "Not For New Designs" and "Active"?

A: "Not For New Designs" indicates the R5F3650MDFB#30 has reached end-of-life and Renesas does not recommend its use in new product development. "Active" status for the substitute parts indicates ongoing manufacturer support, continued production, and availability for both new and existing applications.

Q: Are there differences in firmware or software compatibility between these parts?

A: No. All three parts share the identical M16C/60 core processor, memory configuration (512KB FLASH, 31K RAM, 8K EEPROM), and peripheral set. Firmware and software developed for the R5F3650MDFB#30 are fully compatible with both substitute parts without modification.

Q: What is the difference between the #30 and #10 packaging designations?

A: The #30 and #10 designations refer to packaging variants (Tray packaging in both cases per the provided data). Both maintain identical electrical specifications, pin configuration, and mechanical dimensions. The designation difference does not affect functional compatibility.

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

A: Yes. Both R5F3650MCDFB#30 and R5F3650MDFB#10 are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL 3, 168 Hours) ratings. They meet the same environmental and regulatory requirements as the original part.

Q: Which substitute part should be selected for new inventory procurement?

A: Either part is suitable. Selection should be based on current inventory levels, lead times, and organizational procurement policies. R5F3650MCDFB#30 and R5F3650MDFB#10 both offer Active product status and equivalent availability.

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