R5F104LGAFB#V0 Equivalent & Substitute Parts

Part Overview

The R5F104LGAFB#V0 is a 16-bit RL78/G14 microcontroller manufactured by Renesas Electronics Corporation, featuring 128KB FLASH memory, 16KB RAM, and 8KB EEPROM. This device integrates a 32MHz RL78 core processor with comprehensive connectivity options including CSI, I2C, LINbus, and UART/USART interfaces, along with peripheral functions such as DMA, LVD, POR, PWM, and WDT. The part is currently classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain flexibility, and support long-term product availability for applications requiring RL78/G14 microcontroller functionality.

Substiute Parts

R5F104LGAFB#V0

Renesas Electronics CorporationIn Stock: 992R5F104LGAFB#V0 Datasheet

Current PartRFQ

R5F104LGAFB#30

Renesas Electronics CorporationIn Stock: 1385R5F104LGAFB#30 Datasheet

DirectRFQ

R5F104LGAFA#10

Renesas Electronics CorporationIn Stock: 1953R5F104LGAFA#10 Datasheet

Parametric EquivalentRFQ

R5F104LGAFA#30

Renesas Electronics CorporationIn Stock: 1595R5F104LGAFA#30 Datasheet

Parametric EquivalentRFQ

R5F104LGAFB#10

Renesas Electronics CorporationIn Stock: 1037R5F104LGAFB#10 Datasheet

Parametric EquivalentRFQ

R5F104LGAFP#10

Renesas Electronics CorporationIn Stock: 1563R5F104LGAFP#10 Datasheet

Parametric EquivalentRFQ

R5F104LGAFP#30

Renesas Electronics CorporationIn Stock: 1420R5F104LGAFP#30 Datasheet

Parametric EquivalentRFQ

R5F104LGAXXXFB#30

Renesas Electronics CorporationIn Stock: 1169R5F104LGAXXXFB#30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F104LGAFB#V0 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Core Processor: RL78
• Core Size: 16-Bit
• Speed: 32MHz
• Program Memory: 128KB FLASH
• EEPROM: 8K x 8
• RAM: 16K x 8
• Voltage Supply: 1.6V ~ 5.5V
• Data Converters: A/D 12x8/10b; D/A 2x8b
• Connectivity: CSI, I2C, LINbus, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number of I/O: 48
• Operating Temperature: -40°C ~ 85°C

Mechanical Compatibility Considerations:

• Package Type: 64-LQFP (variations in physical dimensions: 10x10mm, 12x12mm, or 14x14mm)
• Mounting Type: Surface Mount
• MSL Rating: 3 (168 Hours)

All substitute parts listed maintain identical electrical specifications and core functionality. Variations exist only in physical package dimensions and packaging format (Tray vs. other formats), which may require PCB layout adjustments but do not affect electrical performance or firmware compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain full electrical and functional equivalence to the R5F104LGAFB#V0. Selection among available substitutes should be based on the following criteria:

Product Status: The R5F104LGAFB#V0 is classified as obsolete. All listed substitute parts are in active product status, ensuring continued availability and manufacturing support from Renesas Electronics Corporation.

Compliance & Certifications: All parts maintain identical compliance certifications:

• RoHS3 Compliant
• REACH Unaffected
• MSL Rating 3 (168 Hours)
• ECCN 3A991A2
• HTSUS 8542.31.0001

Package Considerations: Substitute parts differ only in physical package dimensions while maintaining the 64-LQFP footprint classification:

• R5F104LGAFB#30, R5F104LGAFB#10, R5F104LGAXXXFB#30: 64-LFQFP (10x10mm) — direct mechanical replacement
• R5F104LGAFA#10, R5F104LGAFA#30: 64-LQFP (12x12mm) — requires PCB layout adjustment
• R5F104LGAFP#10, R5F104LGAFP#30: 64-LQFP (14x14mm) — requires PCB layout adjustment

Inventory Availability: R5F104LGAFA#10 offers the highest current inventory (1870 Pcs), followed by R5F104LGAFP#30 (1347 Pcs) and R5F104LGAFB#30 (1281 Pcs).

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically identical to the R5F104LGAFB#V0?

A: Yes. All substitute parts share identical core processor architecture (RL78), clock speed (32MHz), memory configuration (128KB FLASH, 16KB RAM, 8KB EEPROM), voltage supply range (1.6V ~ 5.5V), connectivity interfaces (CSI, I2C, LINbus, UART/USART), and peripheral functions (DMA, LVD, POR, PWM, WDT). Firmware and application code require no modification.

Q: What is the difference between the various part numbers?

A: Differences are limited to physical package dimensions and packaging format. The suffix designations (LGAFB, LGAFA, LGAFP) indicate different package sizes: LFQFP (10x10mm), LQFP (12x12mm), and LQFP (14x14mm) respectively. The numeric suffix (#V0, #30, #10) indicates packaging format and tape/reel configuration. All variants maintain identical electrical specifications.

Q: Can I use a substitute part with a different package size on my existing PCB?

A: Direct mechanical replacement is possible only with parts maintaining the same physical package dimensions. R5F104LGAFB#30 and R5F104LGAFB#10 are direct replacements for R5F104LGAFB#V0 (all 64-LFQFP 10x10mm). Parts with different package sizes (12x12mm or 14x14mm) require PCB layout modifications to accommodate the larger footprint.

Q: Why is the R5F104LGAFB#V0 marked as obsolete?

A: The R5F104LGAFB#V0 has reached end-of-life status. Active substitute parts from the same RL78/G14 series remain available from Renesas Electronics Corporation to support existing designs and provide continuity for new production.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, REACH unaffected status, and identical MSL rating (3, 168 Hours), ensuring compatibility with current manufacturing and environmental regulations.

Q: Which substitute part should I select for new designs?

A: For new designs, select based on PCB layout constraints and packaging availability. R5F104LGAFB#30 provides the most direct compatibility with existing R5F104LGAFB#V0 designs (identical 10x10mm package). For maximum inventory availability, R5F104LGAFA#10 offers the highest stock level while maintaining full electrical equivalence.