Renesas R5F100GFANA#U0

Overview

R5F100GFANA#U0 from Renesas is a 48-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for ultra-low-power industrial control and sensor interface applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F100GFANA#U0 datasheet, R5F100GFANA#U0 pinout, R5F100GFANA#U0 application, or R5F100GFANA#U0 equivalent, key selection criteria include its 0.57 μA STOP-mode current, 41 DMIPS @ 32 MHz performance, integrated LIN-capable UART, and hardware multiplier/divider for deterministic control loops.

Technical Context

The R5F100GFANA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for RTC/WDT.

Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C interfaces, 2–4× UART/LIN channels, 2–8× CSI/SPI channels, and DMA controller with 2/4 channels - all configurable under ultra-low-power HALT, STOP, and SNOOZE modes with wake-up via multiple sources including key interrupt and RTC alarm.

Key Specifications

Pinout & Package

Package: 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch), wettable flank, RoHS-compliant, thermal pad exposed on bottom.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F100GGANA#U0 (identical spec) and R5F100GHANA#U0 (4 KB extra RAM), the R5F100GFANA#U0 delivers the precise 12 KB RAM footprint needed for cost-sensitive industrial controllers without over-provisioning memory resources.

Availability

R5F100GFANA#U0 is available at Aetrix Electronics and suitable for industrial automation, smart building controls, and battery-powered sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for R5F100GFANA#U0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose applications - delivering high integration, robust industrial temperature range (-40°C to +105°C), and toolchain compatibility with Renesas CS+ and e2 studio.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100GFANA#U0?

The R5F100GFANA#U0 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS (Dhrystone MIPS) at that speed. Its minimum instruction execution time is 0.03125 μs in high-speed mode, confirmed in the RL78/G13 datasheet Rev.3.80. This performance level supports real-time control loops and moderate protocol stack processing without external acceleration.

Does the R5F100GFANA#U0 support LIN bus communication, and which peripheral implements it?

Yes, the R5F100GFANA#U0 supports LIN bus communication via its UART peripherals - specifically UART0 and UART1, both of which include LIN-break-detection and sync-byte transmission features per ISO 9141-2 and LIN 2.x standards. The R5F100GFANA#U0 datasheet confirms LIN capability in the "Serial interface" section under UART specifications.

What is the exact flash and RAM configuration of the R5F100GFANA#U0?

The R5F100GFANA#U0 contains 128 KB of code flash memory, 8 KB of data flash memory, and 12 KB of on-chip RAM. This configuration is explicitly listed in the RL78/G13 memory matrix (Page 2 of datasheet R01DS0131EJ0380) for part numbers ending in "G" (128 KB) with "100" prefix (data flash included) and "F" (12 KB RAM).

Which package type and pin count does the R5F100GFANA#U0 use, and what does the #U0 suffix indicate?

The R5F100GFANA#U0 uses a 48-pin HWQFN package (7 × 7 mm, 0.5 mm pitch) with wettable flanks. The "#U0" suffix denotes tray packaging for HWQFN, VFBGA, or WFLGA devices - specifically, it indicates a standard 250-unit tray per Renesas packaging specification documentation.

Can the R5F100GFANA#U0 operate across the full industrial temperature range, and what grade does the "G" suffix denote?

Yes, the R5F100GFANA#U0 is rated for operation from -40°C to +105°C, as indicated by the "G" suffix in its part number - which Renesas designates for industrial applications with extended ambient temperature range. This is confirmed in Section 1.1 ("Operating ambient temperature") of the RL78/G13 datasheet Rev.3.80.