R5F52108CDFM#10 Equivalent & Substitute Parts

Part Overview

The R5F52108CDFM#10 is a 32-bit single-core microcontroller from Renesas Electronics Corporation's RX200 series, featuring 512KB FLASH memory, 64KB RAM, and 8KB EEPROM. The device operates at 50MHz with integrated connectivity interfaces (I2C, SCI, SPI) and peripheral functions including DMA, LVD, POR, PWM, and WDT. The part is packaged in a 64-LFQFP (10x10mm) surface mount configuration.

This microcontroller carries a product status designation of "Not For New Designs," indicating that Renesas has discontinued active development and support for this specific model. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where existing inventory becomes depleted or unavailable.

Substiute Parts

R5F52108CDFM#10

Renesas Electronics CorporationIn Stock: 1091R5F52108CDFM#10 Datasheet

Current PartRFQ

R5F52108CDFK#10

Renesas Electronics CorporationIn Stock: 1248R5F52108CDFK#10 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F52108CDFM#10 is determined by strict equivalence across the following critical parameters:

Functional Equivalence Criteria:

• Core processor architecture (RX)
• Core size (32-Bit Single-Core)
• Operating frequency (50MHz)
• Program memory capacity (512KB FLASH)
• EEPROM capacity (8K x 8)
• RAM capacity (64K x 8)
• I/O count (48 pins)
• Connectivity interfaces (I2C, SCI, SPI)
• Peripheral feature set (DMA, LVD, POR, PWM, WDT)
• Data converter specifications (A/D 12x12b; D/A 2x10b)
• Supply voltage range (1.62V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)

Mechanical Compatibility Criteria:

• Surface mount packaging
• Base product number (R5F52108)
• RoHS3 compliance
• Moisture sensitivity level (MSL 3)

The R5F52108CDFK#10 qualifies as a parametric equivalent based on identical functional specifications across all electrical and memory parameters. The primary distinction is the package form factor: the substitute uses a 64-LQFP (14x14mm) configuration compared to the original 64-LFQFP (10x10mm) footprint.

Parameter Comparison

Engineering Selection Recommendations

The R5F52108CDFK#10 serves as a functional substitute for the R5F52108CDFM#10 based on complete electrical and memory parameter equivalence. Both devices share identical core architecture, processing speed, memory configuration, peripheral feature set, and compliance certifications.

Product Status Consideration: The substitute part (R5F52108CDFK#10) carries an "Active" product status designation, indicating ongoing manufacturer support and availability. The original part is designated "Not For New Designs," reflecting its discontinued development status. For applications requiring long-term supply continuity and manufacturer support, the substitute part provides superior lifecycle assurance.

Compliance and Certification: Both parts maintain ROHS3 compliance and identical moisture sensitivity specifications (MSL 3, 168 Hours), ensuring equivalent environmental and regulatory compatibility.

Package Form Factor Consideration: The primary technical distinction between these parts is the package footprint. The original uses a 64-LFQFP (10x10mm) configuration, while the substitute uses a 64-LQFP (14x14mm) configuration. This difference requires PCB layout modification and may affect board space allocation. Both packages maintain identical pin counts (64) and electrical connectivity.

Frequently Asked Questions (FAQ)

Q: Are the R5F52108CDFM#10 and R5F52108CDFK#10 electrically identical?

A: Yes. Both devices share identical electrical specifications including processor architecture, clock speed (50MHz), memory configuration (512KB FLASH, 64KB RAM, 8KB EEPROM), I/O count (48), connectivity interfaces (I2C, SCI, SPI), peripheral features (DMA, LVD, POR, PWM, WDT), data converters (A/D 12x12b; D/A 2x10b), and supply voltage range (1.62V ~ 5.5V).

Q: What is the primary difference between these two parts?

A: The package form factor differs. The R5F52108CDFM#10 uses a 64-LFQFP (10x10mm) package, while the R5F52108CDFK#10 uses a 64-LQFP (14x14mm) package. Both are surface mount configurations with 64 pins.

Q: Can I use the R5F52108CDFK#10 as a direct replacement on existing PCBs designed for the R5F52108CDFM#10?

A: No. The different package footprints (10x10mm versus 14x14mm) require PCB layout modifications. The larger package footprint of the substitute part necessitates redesign of the component placement area and may affect board space allocation.

Q: What is the significance of the "Not For New Designs" status on the original part?

A: This designation indicates that Renesas has discontinued active development and support for the R5F52108CDFM#10. The manufacturer no longer recommends this part for new product designs. The substitute part carries an "Active" status, indicating ongoing support and availability.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the R5F52108CDFM#10 and R5F52108CDFK#10 are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 Hours).

Q: Do both parts support the same operating temperature range?

A: Yes. Both devices operate across the identical temperature range of -40°C to 85°C (TA).

Q: Can firmware developed for the R5F52108CDFM#10 run on the R5F52108CDFK#10?

A: Yes. Both devices use the identical RX core processor architecture and memory configuration. Firmware compatibility is maintained across both parts.

Q: What inventory status is available for each part?

A: The R5F52108CDFM#10 has 1039 pieces in stock. The R5F52108CDFK#10 has 1170 pieces in stock.