Renesas R5F100MFAFB#50

Overview

R5F100MFAFB#50 from Renesas is an RL78/G13 80-pin, 96 KB flash, 8 KB data flash, 8 KB RAM ultra-low-power 16-bit MCU with integrated RTC, 10-bit ADC (26 channels), and multiple serial interfaces (UART, I²C, CSI) for industrial control and sensor node applications operating from 1.6 V to 5.5 V.

For engineers reviewing the R5F100MFAFB#50 datasheet, R5F100MFAFB#50 pinout, R5F100MFAFB#50 application, or R5F100MFAFB#50 equivalent, key selection criteria include its 80-pin LFQFP-0.5mm package, -40°C to +85°C industrial temperature grade (D), 66 μA/MHz active current, 0.57 μA RTC+LVD standby mode, and support for self-programming with boot swap.

Technical Context

The R5F100MFAFB#50 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), DMA controller (4 channels), and multiply-accumulate unit (16×16→32-bit).

Its peripheral set includes 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, and 3× I²C/Simplified I²C channels - all designed for deterministic real-time operation in resource-constrained embedded systems without external timing components.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100MGAFB#50, the R5F100MFAFB#50 offers optimized cost/performance for mid-size firmware deployments, while R5F101MFAFB#50 reduces bill-of-materials by removing redundant nonvolatile storage-making it ideal for fixed-function controllers where parameters are factory-programmed.

Availability

R5F100MFAFB#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across multi-year production cycles.

Supply support for R5F100MFAFB#50 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets with over 40 years of MCU innovation.

The RL78/G13 product line delivers true low-power performance for general-purpose embedded control, targeting applications needing extended battery life, compact footprint, and integrated analog/mixed-signal functionality without sacrificing processing throughput.

FAQ

What is the maximum operating frequency of the R5F100MFAFB#50?

The R5F100MFAFB#50 supports up to 32 MHz operation using its high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C) or external crystal/clock source. At 32 MHz, it delivers 41 DMIPS performance with minimum instruction time of 0.03125 μs, enabling real-time control loops and fast serial protocol handling in the R5F100MFAFB#50.

Does the R5F100MFAFB#50 support in-system programming via standard interfaces?

Yes, the R5F100MFAFB#50 supports in-system programming through its on-chip debug interface using SWD (Single-Wire Debug) or FINE (Renesas proprietary 2-wire interface). It also enables self-programming of both code and data flash memory with boot swap functionality, allowing safe firmware updates without external programmers in the R5F100MFAFB#50.

How many analog input channels does the R5F100MFAFB#50 provide, and what is their resolution?

The R5F100MFAFB#50 integrates a 10-bit successive-approximation ADC with up to 26 configurable analog input channels (ANI0–ANI25), supporting simultaneous sampling across multiple pins. Input voltage range is referenced to VDD (1.6–5.5 V), and an internal 1.45 V reference is available for precision measurements independent of supply variation in the R5F100MFAFB#50.

What packaging and lead finish does the R5F100MFAFB#50 use?

The R5F100MFAFB#50 is supplied in an 80-pin LFQFP package (12 × 12 mm, 0.50-mm pitch) with lead-free (Pb-free) matte tin plating, compliant with JEDEC J-STD-020 moisture sensitivity level 3. The #50 suffix indicates embossed tape packaging for automated SMT placement, matching industry-standard reel dimensions and orientation for the R5F100MFAFB#50.

Is the R5F100MFAFB#50 qualified for industrial temperature operation?

Yes, the R5F100MFAFB#50 is rated for industrial temperature operation from -40°C to +85°C (D-grade), verified per Renesas' industrial qualification standards including extended HTOL, temperature cycling, and ESD testing. This makes it suitable for deployment in harsh environments such as factory floor controllers, outdoor utility meters, and HVAC equipment where the R5F100MFAFB#50 must maintain reliability under thermal stress.