R5F100LEDFB#50 Equivalent & Substitute Parts

Part Overview

The R5F100LEDFB#50 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, designed for embedded applications requiring 64KB flash memory and integrated connectivity interfaces. This device is currently in active production status with 1115 units available in stock. Identifying equivalent substitute parts is essential for supply chain continuity, design flexibility, and procurement optimization when the primary part number becomes unavailable or when alternative packaging configurations are required for specific manufacturing processes.

Substiute Parts

R5F100LEDFB#50

Renesas Electronics CorporationIn Stock: 1173R5F100LEDFB#50 Datasheet

Current PartRFQ

R5F100LEAFA#50

Renesas Electronics CorporationIn Stock: 2182R5F100LEAFA#50 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R5F100LEDFB#50 is determined by strict equivalence across the following critical parameters:

Core Functional Parameters (Must Match Exactly):

• RL78/G13 series designation
• 16-bit core processor architecture
• 32MHz operating speed
• 64KB flash memory capacity (64K x 8)
• 4KB EEPROM (4K x 8)
• 4KB RAM (4K x 8)
• 48 I/O pins
• Voltage supply range: 1.6V ~ 5.5V
• Connectivity interfaces: CSI, I2C, LINbus, UART/USART
• Peripheral set: DMA, LVD, POR, PWM, WDT
• A/D converter configuration: 12x8/10b
• Operating temperature range: -40°C ~ 85°C

Allowable Variation Parameters:

• Supplier device package configuration (different LQFP dimensions)
• Packaging format (bulk vs. Tape & Reel)
• Tape & Reel specifications

The R5F100LEAFA#50 qualifies as a parametric equivalent substitute based on identical core functionality and electrical specifications, with the allowable difference being the supplier device package dimension (64-LQFP 12x12 versus 64-LFQFP 10x10).

Parameter Comparison

Engineering Selection Recommendations

Both the R5F100LEDFB#50 and R5F100LEAFA#50 maintain active production status with Renesas Electronics Corporation and carry identical ROHS3 compliance and REACH unaffected certifications. Selection between these parts should be based on the following criteria:

R5F100LEDFB#50 (Primary Part): Select this part number when bulk packaging is required for manufacturing processes that do not utilize automated tape-and-reel handling systems. The 64-LFQFP (10x10) package dimension is suitable for applications with standard PCB layout constraints.

R5F100LEAFA#50 (Substitute Part): Select this part number when Tape & Reel packaging is required for high-volume automated assembly operations. The 64-LQFP (12x12) package dimension accommodates applications where slightly larger footprint spacing is acceptable. This part number offers 2073 units in current inventory, providing enhanced supply availability.

Both parts are functionally and electrically equivalent for all embedded application requirements within the RL78/G13 microcontroller family. The selection decision is driven by packaging format and PCB layout requirements rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Are R5F100LEDFB#50 and R5F100LEAFA#50 pin-compatible?

A: Both parts feature 48 I/O pins in 64-LQFP package configurations. However, the physical package dimensions differ (10x10 versus 12x12). Pin-to-pin compatibility exists for electrical function, but PCB layout modifications are required to accommodate the different package dimensions. Consult the respective device datasheets for detailed pinout and footprint specifications.

Q: What is the difference between the packaging formats?

A: R5F100LEDFB#50 is supplied in bulk packaging, suitable for manual handling and smaller production runs. R5F100LEAFA#50 is supplied in Tape & Reel (TR) format, optimized for automated pick-and-place assembly equipment used in high-volume manufacturing.

Q: Can I use R5F100LEAFA#50 as a direct replacement on an existing PCB designed for R5F100LEDFB#50?

A: Direct PCB replacement is not possible due to the different package dimensions (64-LFQFP 10x10 versus 64-LQFP 12x12). PCB layout and footprint modifications are required. Firmware and software are fully compatible between the two parts.

Q: Are there any electrical performance differences between these two part numbers?

A: No. Both parts are electrically and functionally identical. They share identical core processor architecture, memory configuration, operating speed, voltage specifications, and peripheral sets. Performance differences do not exist.

Q: What compliance certifications apply to both parts?

A: Both R5F100LEDFB#50 and R5F100LEAFA#50 are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is rated at 3 (168 Hours) for both parts.

Q: Which part should I specify for new designs?

A: For new designs, either part is acceptable from a functional standpoint. If automated assembly is planned, specify R5F100LEAFA#50 (Tape & Reel format). If manual assembly or smaller production volumes are anticipated, R5F100LEDFB#50 (bulk packaging) is appropriate. Consult your manufacturing process requirements and supply chain strategy.