R5F64168PFD#UB Equivalent & Substitute Parts

Part Overview

The R5F64168PFD#UB is a 16/32-bit microcontroller from Renesas Electronics Corporation belonging to the M16C/R32C/100/116 series. This embedded IC features a 50MHz R32C/100 core processor with 768KB FLASH program memory, 63KB RAM, and 8KB EEPROM. The device integrates multiple connectivity interfaces including EBI/EMI, I2C, IEBus, and UART/USART, along with peripheral functions such as DMA, LVD, PWM, and WDT. The R5F64168PFD#UB is packaged in a 144-LFQFP (20x20) surface mount configuration.

The R5F64168PFD#UB carries an Obsolete product status. Identification of equivalent substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity where original components are no longer available through standard distribution channels.

Substiute Parts

R5F64168PFD#UB

Renesas Electronics CorporationIn Stock: 1119R5F64168PFD#UB Datasheet

Current PartRFQ

R5F64168PFD#2B

Renesas Electronics CorporationIn Stock: 806R5F64168PFD#2B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F64168PFD#UB is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Core Architecture & Processing: The R32C/100 core processor and 16/32-bit architecture define the instruction set and computational capability. Any substitute must use the same processor core.

Memory Configuration: Program memory capacity (768KB FLASH), RAM size (63KB), and EEPROM capacity (8KB) must be identical. These parameters directly impact software compatibility and system functionality.

Operating Characteristics: Clock speed (50MHz), supply voltage range (3V ~ 5.5V), and operating temperature range (-40°C ~ 85°C) must match exactly to ensure functional equivalence in target applications.

Peripheral Integration: The connectivity interfaces (EBI/EMI, I2C, IEBus, UART/USART) and peripheral functions (DMA, LVD, PWM, WDT) must be identical.

Analog Capabilities: Data converter specifications (34x10-bit A/D, 2x8-bit D/A) must remain unchanged.

Physical Package: The 144-LQFP package with 20x20mm dimensions and 120 I/O pins must be identical to ensure PCB compatibility without redesign.

Compliance Standards: RoHS3 compliance status must be maintained.

Parameter Comparison

Engineering Selection Recommendations

The R5F64168PFD#2B is the manufacturer-recommended substitute for the obsolete R5F64168PFD#UB. Both parts are manufactured by Renesas Electronics Corporation and share identical electrical specifications, memory configurations, peripheral integration, and physical packaging.

The primary distinction between these parts is product lifecycle status. The R5F64168PFD#UB is classified as Obsolete, indicating it is no longer in active production and subject to limited availability through distribution channels. The R5F64168PFD#2B maintains Active product status, ensuring ongoing manufacturing support and standard availability.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying current environmental and regulatory requirements. The R5F64168PFD#2B includes documented Moisture Sensitivity Level (MSL) rating of 3 (168 Hours), providing additional handling and storage specifications for manufacturing environments.

From an engineering perspective, the R5F64168PFD#2B provides functional and physical equivalence with the added benefit of active product support and procurement reliability. No circuit modifications, firmware changes, or PCB redesign are required when transitioning from the R5F64168PFD#UB to the R5F64168PFD#2B.

Frequently Asked Questions (FAQ)

Q: Are the R5F64168PFD#UB and R5F64168PFD#2B pin-compatible?

A: Yes. Both parts use the 144-LQFP package with identical 20x20mm dimensions and 120 I/O pin configuration. Direct PCB substitution is possible without layout modifications.

Q: Will firmware compiled for the R5F64168PFD#UB execute on the R5F64168PFD#2B?

A: Yes. Both parts feature the identical R32C/100 core processor, 16/32-bit architecture, and 50MHz clock speed. Firmware compatibility is maintained without recompilation or modification.

Q: What is the difference between the part number suffixes #UB and #2B?

A: The suffix designates the packaging variant or manufacturing batch code assigned by Renesas Electronics Corporation. Both suffixes reference the same base product number R5F64168 with identical electrical and functional specifications.

Q: Can the R5F64168PFD#2B be used in existing designs originally specified for the R5F64168PFD#UB?

A: Yes. The R5F64168PFD#2B is a direct functional and physical equivalent. No design changes are required for component substitution.

Q: What does the Obsolete product status mean for the R5F64168PFD#UB?

A: Obsolete status indicates the part is no longer manufactured in volume and is not available through standard distribution channels. Existing inventory may be available from secondary sources, but long-term procurement cannot be assured. The Active status of the R5F64168PFD#2B ensures continued availability.

Q: Are there any differences in memory specifications between these parts?

A: No. Both parts contain identical 768KB FLASH program memory, 63KB RAM, and 8KB EEPROM configurations.

Q: Do both parts support the same connectivity interfaces?

A: Yes. Both parts integrate EBI/EMI, I2C, IEBus, and UART/USART connectivity interfaces with identical peripheral functions including DMA, LVD, PWM, and WDT.

Q: What is the Moisture Sensitivity Level (MSL) for the R5F64168PFD#UB?

A: The MSL specification is not provided in the available documentation for the R5F64168PFD#UB. The R5F64168PFD#2B specifies MSL 3 (168 Hours), which is standard for this package type.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, satisfying current environmental and regulatory requirements for electronic components.