R5F10278ANA#05 Equivalent & Substitute Parts

Part Overview

The R5F10278ANA#05 is a 16-bit embedded microcontroller from Renesas Electronics Corporation, part of the RL78/G12 series. This device integrates 8KB of FLASH program memory, 2KB EEPROM, and 768 bytes of RAM with a 24MHz core processor. The microcontroller operates across a wide supply voltage range of 1.8V to 5.5V and includes integrated connectivity interfaces (CSI, I2C, UART/USART) and peripheral functions (DMA, LVD, POR, PWM, WDT). The part is classified as Active product status and is ROHS3 compliant. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles.

Substiute Parts

R5F10278ANA#05

Renesas Electronics CorporationIn Stock: 846R5F10278ANA#05 Datasheet

Current PartRFQ

R5F10278ANA#25

Renesas Electronics CorporationIn Stock: 2456R5F10278ANA#25 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R5F10278ANA#05 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Core Processor Architecture: RL78 16-bit processor
• Memory Configuration: 8KB FLASH, 2KB EEPROM, 768 bytes RAM
• Operating Frequency: 24MHz
• Supply Voltage Range: 1.8V ~ 5.5V
• Connectivity Interfaces: CSI, I2C, UART/USART
• Peripheral Set: DMA, LVD, POR, PWM, WDT
• I/O Count: 18 pins
• Package Type: 24-HWQFN (4x4) with exposed pad
• Operating Temperature Range: -40°C ~ 85°C
• Compliance Standards: ROHS3, REACH Unaffected

Parts that differ only in packaging tape reel configuration (indicated by the suffix designation following the # symbol) are considered parametric equivalents and direct substitutes. The R5F10278ANA#25 represents an alternative packaging configuration of the identical microcontroller die and electrical specification.

Parameter Comparison

Engineering Selection Recommendations

The R5F10278ANA#25 is a direct parametric equivalent to the R5F10278ANA#05. Both parts share identical electrical specifications, memory configurations, peripheral sets, and physical package dimensions. The difference between these part numbers is limited to the packaging tape reel configuration, which does not affect functional performance or electrical characteristics.

Both parts maintain Active product status from Renesas Electronics Corporation, ensuring continued manufacturer support and availability. Both are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial and commercial applications.

Selection between R5F10278ANA#05 and R5F10278ANA#25 should be based on supply chain availability, inventory levels, and procurement lead times. The R5F10278ANA#25 currently maintains higher inventory availability (2416 pieces) compared to R5F10278ANA#05 (794 pieces), which may influence component sourcing decisions for production schedules.

Frequently Asked Questions (FAQ)

Q: Are R5F10278ANA#05 and R5F10278ANA#25 electrically identical?

A: Yes. Both parts contain the identical RL78 16-bit microcontroller die with 8KB FLASH, 2KB EEPROM, and 768 bytes RAM. All electrical specifications, operating parameters, and functional capabilities are identical.

Q: What does the suffix designation (#05 vs #25) indicate?

A: The suffix designation refers to the packaging tape reel configuration used during manufacturing and distribution. This affects only the physical packaging format and does not alter the microcontroller's electrical performance or functionality.

Q: Can I substitute R5F10278ANA#25 for R5F10278ANA#05 in my design?

A: Yes. The parts are direct substitutes with identical pin configurations, electrical specifications, and package dimensions (24-HWQFN 4x4). No design modifications are required.

Q: Are there any differences in operating temperature range between these parts?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (TA).

Q: Do both parts support the same connectivity interfaces?

A: Yes. Both R5F10278ANA#05 and R5F10278ANA#25 include CSI, I2C, and UART/USART connectivity interfaces with identical peripheral support (DMA, LVD, POR, PWM, WDT).

Q: What is the moisture sensitivity level for these microcontrollers?

A: Both parts have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours. This classification applies to both packaging configurations.

Q: Are both parts RoHS compliant?

A: Yes. Both R5F10278ANA#05 and R5F10278ANA#25 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Which part should I select based on availability?

A: R5F10278ANA#25 currently has higher inventory availability (2416 pieces) compared to R5F10278ANA#05 (794 pieces). For applications with flexible sourcing requirements, R5F10278ANA#25 may offer shorter lead times and improved supply chain continuity.