R5F64185PFD#2B Equivalent & Substitute Parts

Part Overview

The R5F64185PFD#2B is a 16/32-bit microcontroller from Renesas Electronics Corporation belonging to the M16C/R32C/100/118 series. This embedded IC operates at 50MHz with 384KB of FLASH program memory and is housed in a 144-LFQFP surface mount package. The device integrates multiple connectivity interfaces including CANbus, EBI/EMI, I2C, IEBus, and UART/USART, along with peripheral functions such as DMA, LVD, PWM, and WDT. The R5F64185PFD#2B maintains Active product status and is ROHS3 compliant. Identifying equivalent substitute parts becomes necessary when the primary part number is unavailable or when design requirements necessitate alternative sourcing options that maintain identical electrical and mechanical specifications.

Substiute Parts

R5F64185PFD#2B

Renesas Electronics CorporationIn Stock: 1022R5F64185PFD#2B Datasheet

Current PartRFQ

R5F64175DFD#UB

Renesas Electronics CorporationIn Stock: 1150R5F64175DFD#UB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F64185PFD#2B is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part R5F64175DFD#UB qualifies as a parametric equivalent based on the following matching criteria:

Matching Parameters:

• Core Processor: R32C/100
• Core Size: 16/32-Bit
• Speed: 50MHz
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• EEPROM Size: 8K x 8
• RAM Size: 40K x 8
• Voltage Supply: 3V ~ 5.5V
• Data Converters: A/D 34x10b; D/A 2x8b
• Number of I/O: 120
• Connectivity: CANbus, EBI/EMI, I2C, IEBus, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 144-LQFP
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

The substitute part differs only in series designation (M16C/R32C/100/117 versus M16C/R32C/100/118), packaging format (Tray versus standard), and product status (Obsolete versus Active).

Parameter Comparison

Engineering Selection Recommendations

The R5F64175DFD#UB qualifies as a parametric equivalent to the R5F64185PFD#2B based on complete electrical and mechanical specification alignment. All critical functional parameters, memory configurations, connectivity interfaces, and peripheral features are identical between the two parts.

Primary Consideration: The R5F64175DFD#UB carries Obsolete product status, whereas the R5F64185PFD#2B maintains Active status. This distinction affects long-term availability and supply chain reliability. The R5F64185PFD#2B is the preferred selection for new designs and applications requiring sustained component availability.

Compliance Status: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental and regulatory performance in manufacturing and field deployment.

Packaging Consideration: The R5F64175DFD#UB is supplied in Tray packaging format, while the R5F64185PFD#2B uses standard packaging. This difference affects handling, storage, and integration into production workflows but does not impact electrical or mechanical compatibility.

The R5F64175DFD#UB is suitable for substitution only in scenarios where component availability of the primary part is constrained and where the Obsolete status does not conflict with project requirements or supply chain policies.

Frequently Asked Questions (FAQ)

Q: Are the R5F64185PFD#2B and R5F64175DFD#UB pin-compatible?

A: Yes. Both parts use the 144-LQFP package with identical pin counts and configurations. The physical footprint and pinout are equivalent, allowing direct PCB-level substitution without layout modifications.

Q: What is the difference between the M16C/R32C/100/118 and M16C/R32C/100/117 series designations?

A: The series designation reflects internal product line categorization within Renesas Electronics Corporation. From an electrical and functional perspective, both series variants provide identical core processor architecture, memory configurations, and peripheral functionality. The designation difference does not impact application compatibility.

Q: Can the R5F64175DFD#UB be used in production designs?

A: The R5F64175DFD#UB carries Obsolete product status, indicating that Renesas Electronics Corporation has discontinued active manufacturing and support. While the part remains functionally equivalent, its use in production designs introduces supply chain risk. The R5F64185PFD#2B, with Active status, is the recommended choice for production applications.

Q: Does the Tray packaging of the R5F64175DFD#UB affect electrical performance?

A: No. Packaging format (Tray versus standard) is a logistics and handling specification that does not alter electrical characteristics, performance parameters, or functional behavior of the microcontroller IC.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the R5F64185PFD#2B and R5F64175DFD#UB operate across the identical temperature range of -40°C to 85°C (TA), ensuring equivalent thermal performance in all environmental conditions.

Q: What is the significance of the MSL rating of 3 (168 Hours)?

A: Moisture Sensitivity Level 3 indicates that both parts require controlled storage conditions with exposure to moisture limited to 168 hours at specified humidity levels before soldering. This specification is identical for both parts, ensuring equivalent handling and storage requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, from an electrical and mechanical standpoint, the parts are fully interchangeable. However, design documentation and component specifications should be updated to reflect any substitution, and supply chain considerations regarding the Obsolete status of the R5F64175DFD#UB must be evaluated.