Renesas Electronics R5F104LLAFB#10 Equivalent & Substitute Parts

Part Overview

The Renesas Electronics R5F104LLAFB#10 is a 16-bit embedded microcontroller from the RL78/G14 series, featuring 512KB FLASH memory, 48KB RAM, and 8KB EEPROM. This device operates at 32MHz with integrated connectivity options including CSI, I2C, LINbus, and UART/USART interfaces. The part is classified as Active product status and is RoHS3 compliant. Substitute parts are identified to address inventory availability, packaging preferences, or specific application requirements while maintaining electrical and functional equivalence.

Substiute Parts

R5F104LLAFB#10

Renesas Electronics CorporationIn Stock: 1076R5F104LLAFB#10 Datasheet

Current PartRFQ

R5F104LLAFA#30

Renesas Electronics CorporationIn Stock: 1346R5F104LLAFA#30 Datasheet

Parametric EquivalentRFQ

R5F104LLAFB#30

Renesas Electronics CorporationIn Stock: 1671R5F104LLAFB#30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R5F104LLAFB#10 are identified based on strict electrical and functional equivalence within the RL78/G14 microcontroller family. The substitution logic is determined by the following parameters:

Core Electrical Parameters (Must Match):

• Core Processor: RL78
• Core Size: 16-Bit
• Speed: 32MHz
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• RAM Size: 48K x 8
• EEPROM Size: 8K x 8
• Number of I/O: 48
• Voltage Supply Range: 1.6V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C
• Connectivity: CSI, I2C, LINbus, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Data Converters: A/D 12x8/10b; D/A 2x8b

Allowed Variation Parameters:

• Packaging designation (Tray)
• Supplier device package format (64-LFQFP vs 64-LQFP physical dimensions)
• Tape reel suffix designation (#10, #30)

The identified substitutes maintain complete electrical compatibility and functional equivalence while differing only in package physical dimensions and tape reel configurations.

Parameter Comparison

Engineering Selection Recommendations

All three parts—R5F104LLAFB#10, R5F104LLAFA#30, and R5F104LLAFB#30—are Active product status devices from Renesas Electronics Corporation and maintain identical electrical specifications, memory configurations, and peripheral functionality. Each part is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for embedded microcontroller applications.

R5F104LLAFB#10 and R5F104LLAFB#30 share identical physical package dimensions (64-LFQFP 10x10mm) and differ only in tape reel configuration. These parts are directly interchangeable at the PCB layout level.

R5F104LLAFA#30 features a larger package footprint (64-LQFP 12x12mm) while maintaining all electrical and functional equivalence. This part requires PCB layout modification to accommodate the increased package dimensions but provides identical microcontroller functionality.

Selection between these substitutes depends on PCB design constraints and tape reel availability requirements rather than electrical performance considerations.

Frequently Asked Questions (FAQ)

Q: Are R5F104LLAFB#10 and R5F104LLAFB#30 pin-compatible?

A: Yes. Both parts use the 64-LFQFP (10x10mm) package format with identical pin assignments, voltage specifications, and electrical characteristics. The suffix difference (#10 vs #30) indicates tape reel configuration only and does not affect electrical compatibility or PCB placement.

Q: Can R5F104LLAFA#30 be used as a direct replacement for R5F104LLAFB#10?

A: R5F104LLAFA#30 provides complete electrical and functional equivalence but requires PCB layout modification. The package footprint differs (64-LQFP 12x12mm vs 64-LFQFP 10x10mm), necessitating updated PCB design files and component placement. All electrical specifications, memory configurations, and peripheral functions remain identical.

Q: What determines substitution eligibility for RL78/G14 microcontrollers?

A: Substitution eligibility is determined by matching core processor architecture (RL78), core size (16-Bit), clock speed (32MHz), memory configuration (512KB FLASH, 48KB RAM, 8KB EEPROM), I/O count (48), voltage supply range (1.6V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and peripheral set (CSI, I2C, LINbus, UART/USART, DMA, LVD, POR, PWM, WDT). Package format variations are permitted when PCB design accommodates physical differences.

Q: Are all three parts available in the same packaging format?

A: R5F104LLAFB#10 and R5F104LLAFB#30 are available in 64-LFQFP (10x10mm) format. R5F104LLAFA#30 is available in 64-LQFP (12x12mm) format. All three use Tray packaging for shipment and are supplied on tape reels for automated assembly.

Q: Do these substitutes maintain compliance certifications?

A: All three parts maintain identical RoHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 3 (168 Hours) ratings. Regulatory compliance is preserved across all substitution options.

Q: What is the significance of the tape reel suffix (#10 vs #30)?

A: The tape reel suffix indicates the quantity and configuration of components supplied on continuous tape for automated pick-and-place assembly. This designation does not affect electrical performance, pin configuration, or functional capability. Selection is based on production volume requirements and assembly equipment compatibility.