Renesas Electronics R5F104FEDFP#X0 RL78/G14 Microcontroller Equivalent & Substitute Parts

Part Overview

The Renesas Electronics R5F104FEDFP#X0 is a 16-bit RL78/G14 microcontroller featuring 64KB FLASH memory, 44-pin LQFP package, and operating speeds up to 32MHz. This device is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term production requirements for applications utilizing this embedded microcontroller platform.

Substiute Parts

R5F104FEDFP#X0

Renesas Electronics CorporationIn Stock: 809R5F104FEDFP#X0 Datasheet

Current PartRFQ

R5F104FEDFP#50

Renesas Electronics CorporationIn Stock: 905R5F104FEDFP#50 Datasheet

DirectRFQ

R5F104FEAFP#50

Renesas Electronics CorporationIn Stock: 2044R5F104FEAFP#50 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R5F104FEDFP#X0 are identified based on strict electrical and mechanical parameter matching within the RL78/G14 microcontroller family. The substitution criteria are:

• Identical core processor architecture (RL78)
• Matching series designation (RL78/G14)
• Identical core size (16-Bit)
• Identical operating speed (32MHz)
• Identical program memory configuration (64KB FLASH)
• Identical EEPROM size (4K x 8)
• Identical RAM size (5.5K x 8)
• Identical package type (44-LQFP 10x10)
• Identical voltage supply range (1.6V ~ 5.5V)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical connectivity and peripheral feature sets (CSI, I2C, LINbus, UART/USART, DMA, LVD, POR, PWM, WDT)
• Identical number of I/O pins (31)
• Identical data converter specifications (A/D 10x8/10b)
• Identical RoHS compliance status (ROHS3 Compliant)
• Identical MSL rating (3)

Variations in product status, packaging format (tube vs. tape & reel), and device marking suffix do not affect functional or electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

The R5F104FEDFP#50 is the direct manufacturer substitute for the obsolete R5F104FEDFP#X0, maintaining identical electrical specifications, package configuration, and device marking conventions. This part carries active product status from Renesas Electronics Corporation and is recommended as the primary replacement for new designs and production continuity.

The R5F104FEAFP#50 is a parametric equivalent offering identical functional and electrical characteristics with alternative packaging format (Tape & Reel). This part is suitable for high-volume manufacturing environments requiring automated component handling and is also classified as active product status.

Both substitute parts maintain full compliance with ROHS3 regulations and identical MSL ratings, ensuring compatibility with standard PCB assembly processes and environmental requirements. Selection between R5F104FEDFP#50 and R5F104FEAFP#50 depends on procurement volume, inventory management strategy, and assembly line automation requirements rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can R5F104FEDFP#50 be used as a direct replacement for R5F104FEDFP#X0 without design modifications?

A: Yes. The R5F104FEDFP#50 is electrically and mechanically identical to the R5F104FEDFP#X0. All electrical parameters, pin configurations, memory specifications, and operating characteristics are equivalent. The primary difference is product status (active vs. obsolete) and device marking suffix.

Q: What is the difference between R5F104FEDFP#50 and R5F104FEAFP#50?

A: Both parts are parametrically equivalent with identical electrical specifications and pin configurations. The primary difference is packaging format: R5F104FEDFP#50 is supplied in tube packaging, while R5F104FEAFP#50 is supplied in Tape & Reel format. Selection depends on procurement volume and assembly automation requirements.

Q: Are there any compatibility issues when substituting the obsolete R5F104FEDFP#X0 with active alternatives?

A: No compatibility issues exist. Both substitute parts maintain identical pin assignments, electrical characteristics, memory configurations, and operating parameters. PCB layouts, firmware, and system designs require no modification.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. Both R5F104FEDFP#50 and R5F104FEAFP#50 maintain ROHS3 compliance, identical MSL ratings (3, 168 Hours), and equivalent environmental specifications. No additional qualification or testing is required for standard applications.

Q: Which substitute part should be selected for high-volume production?

A: R5F104FEAFP#50 in Tape & Reel format is optimized for high-volume automated assembly processes. R5F104FEDFP#50 in tube packaging is suitable for lower-volume or manual assembly environments. Both parts are functionally equivalent.