R5F101GFDNA#W0 Equivalent & Substitute Parts

Part Overview

The R5F101GFDNA#W0 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, featuring 96KB FLASH program memory, 8KB RAM, and 34 I/O pins in a 48-HWQFN surface mount package. This device integrates multiple communication interfaces including CSI, I2C, LINbus, and UART/USART, along with peripheral functions such as DMA, PWM, and watchdog timer capabilities.

The R5F101GFDNA#W0 carries an Obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements. Active substitute components maintain core architectural compatibility while offering extended operational parameters and current manufacturing availability.

Substiute Parts

R5F101GFDNA#W0

Renesas Electronics CorporationIn Stock: 910R5F101GFDNA#W0 Datasheet

Current PartRFQ

R5F100GFGNA#40

Renesas Electronics CorporationIn Stock: 1101R5F100GFGNA#40 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F101GFDNA#W0 is determined by strict equivalence across the following critical parameters:

Core Architecture Compatibility: Both the main part and substitute maintain identical RL78 core processor architecture, 16-bit core size, and 32MHz operating frequency, ensuring instruction set and timing compatibility.

Memory Configuration: Program memory capacity (96KB FLASH) and RAM size (8K x 8) remain constant across the substitution group, preserving firmware compatibility and application memory footprint requirements.

Peripheral and Interface Equivalence: Connectivity options (CSI, I2C, LINbus, UART/USART) and peripheral functions (DMA, LVD, POR, PWM, WDT) are maintained identically, supporting equivalent system integration.

Physical Package Compatibility: Both devices utilize the 48-HWQFN (7x7) surface mount package with exposed pad configuration, maintaining PCB layout and thermal management characteristics.

Analog Capability: A/D converter specification (10x8/10b) remains unchanged, preserving analog signal processing capacity.

The R5F100GFGNA#40 qualifies as a direct substitute based on these core parameter equivalences, with differences limited to supply voltage range, operating temperature range, and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The R5F100GFGNA#40 serves as the manufacturer-recommended substitute for the obsolete R5F101GFDNA#W0. Selection of the R5F100GFGNA#40 is supported by the following engineering considerations:

Product Status and Availability: The R5F100GFGNA#40 maintains Active product status with confirmed manufacturing availability, whereas the R5F101GFDNA#W0 is classified as Obsolete. This distinction is critical for long-term supply chain continuity and production planning.

Regulatory Compliance: The R5F100GFGNA#40 carries RoHS3 compliance certification and ECCN classification (3A991A2), providing documented regulatory alignment for commercial and industrial applications. The R5F101GFDNA#W0 carries an Obsolete ECCN designation.

Functional Equivalence: Both devices maintain identical core architecture, memory configuration, peripheral integration, and package specifications, ensuring direct firmware compatibility and PCB layout compatibility without design modification.

Operating Parameter Differences: The R5F100GFGNA#40 specifies a minimum supply voltage of 2.4V compared to 1.6V for the R5F101GFDNA#W0, and an extended maximum operating temperature of 105°C versus 85°C. These differences represent expanded operational capability rather than functional limitation. Applications operating within the R5F101GFDNA#W0 voltage and temperature ranges remain fully compatible with the R5F100GFGNA#40.

Packaging and Handling: Both devices utilize identical 48-HWQFN (7x7) surface mount packages with MSL 3 moisture sensitivity classification, maintaining equivalent PCB assembly and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the R5F100GFGNA#40 be used as a direct replacement for the R5F101GFDNA#W0 without firmware modification?

A: Yes. Both devices implement identical RL78 core architecture, instruction set, memory configuration (96KB FLASH, 8KB RAM), and peripheral integration. Firmware compiled for the R5F101GFDNA#W0 executes without modification on the R5F100GFGNA#40.

Q: Are there PCB layout changes required when substituting the R5F100GFGNA#40 for the R5F101GFDNA#W0?

A: No. Both devices utilize the 48-HWQFN (7x7) surface mount package with identical pinout, I/O count (34 pins), and exposed pad thermal characteristics. PCB layouts remain unchanged.

Q: What is the significance of the voltage range difference between these parts?

A: The R5F100GFGNA#40 specifies a minimum supply voltage of 2.4V, compared to 1.6V for the R5F101GFDNA#W0. Applications designed for the R5F101GFDNA#W0 operating above 2.4V supply voltage experience no functional impact. Applications requiring operation below 2.4V require voltage regulation or alternative component selection.

Q: Does the extended operating temperature range of the R5F100GFGNA#40 affect application compatibility?

A: The R5F100GFGNA#40 supports operation to 105°C maximum, compared to 85°C for the R5F101GFDNA#W0. This represents expanded capability. Applications designed for the R5F101GFDNA#W0 operating temperature range (-40°C to 85°C) remain fully compatible with the R5F100GFGNA#40.

Q: What is the packaging difference between the R5F101GFDNA#W0 and R5F100GFGNA#40?

A: The R5F101GFDNA#W0 is supplied in standard packaging, while the R5F100GFGNA#40 is supplied in Tape & Reel (TR) format. Both utilize the 48-HWQFN (7x7) package. Tape & Reel format is standard for high-volume production and automated assembly processes.

Q: Are there any compliance or certification differences between these parts?

A: The R5F100GFGNA#40 carries RoHS3 compliance certification and current ECCN classification (3A991A2). The R5F101GFDNA#W0 carries an Obsolete designation. For new designs and production, the R5F100GFGNA#40 provides documented regulatory alignment.

Q: Can existing inventory of R5F101GFDNA#W0 be mixed with R5F100GFGNA#40 in production?

A: Yes. Functional equivalence across core parameters permits mixed inventory utilization within the same production run. Both devices execute identical firmware and occupy identical PCB footprints.