Renesas R5F100PFDFB#X0

Overview

R5F100PFDFB#X0 from Renesas is a 100-pin LFQFP, 0.5-mm pitch, industrial-grade RL78/G13 16-bit MCU with 96 KB flash, 8 KB data flash, 4 KB RAM, and operation from -40°C to +85°C. It integrates a real-time clock, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, 16-bit timers, and ultra-low-power modes (0.57 μA in RTC+LVD mode) for embedded control in metering, HVAC, and industrial HMI.

For engineers reviewing the R5F100PFDFB#X0 datasheet, R5F100PFDFB#X0 pinout, R5F100PFDFB#X0 application, or R5F100PFDFB#X0 equivalent, key selection criteria include its 100-pin LFQFP-0.5mm package, 96 KB code flash with self-programming and boot swap, integrated LIN support, and verified operation across -40°C to +85°C industrial ambient conditions.

Technical Context

The R5F100PFDFB#X0 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline-delivering 41 DMIPS at 32 MHz while supporting variable instruction execution time (0.03125 μs to 30.5 μs). It features dual-clock domains: high-speed on-chip oscillator (selectable 1–32 MHz, ±1.0% accuracy) and subsystem clock (32.768 kHz).

Its peripheral set includes 2–4 channel DMA, hardware multiplier/divider/MAC, background data flash rewriting (BGO), and configurable I/O ports (up to 82 pins with N-ch open-drain, TTL input, and pull-up options) enabling direct interfacing with 1.8/2.5/3.0 V logic without level shifters.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP (14 × 14 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R5F100PFDFB#X0, R5F100PGDFB#X0 provides scalable memory for evolving firmware, while R5F101PFDFB#X0 removes data flash to lower unit cost-both retain identical timing, I/O, and industrial temperature rating, enabling drop-in replacement only where memory requirements align.

Availability

R5F100PFDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HVAC control, and factory-floor HMI applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F100PFDFB#X0 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 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications-balancing performance, peripheral richness, and energy efficiency in compact packages.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the R5F100PFDFB#X0?

The R5F100PFDFB#X0 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS at that frequency. Its RL78 CPU core uses a 3-stage pipeline and supports variable instruction execution time-from 0.03125 μs (high-speed mode) to 30.5 μs (ultra-low-speed 32.768 kHz mode)-allowing dynamic trade-offs between performance and power consumption in the R5F100PFDFB#X0.

Does the R5F100PFDFB#X0 support LIN bus communication, and how is it implemented?

Yes, the R5F100PFDFB#X0 supports LIN bus communication via UART1, which includes hardware-assisted LIN features such as automatic sync-break detection and sync-field generation. This eliminates software timing constraints and ensures reliable frame transmission/reception in automotive body electronics and industrial sub-bus networks-fully integrated within the R5F100PFDFB#X0's peripheral set.

What are the memory resources allocated to the R5F100PFDFB#X0, and how is data flash utilized?

The R5F100PFDFB#X0 includes 96 KB of code flash, 8 KB of data flash, and 4 KB of RAM. The data flash supports background operation (BGO), allowing program execution from code flash while simultaneously rewriting non-volatile parameters. With 1,000,000 write cycles and 1.8–5.5 V programming voltage, it serves as robust, field-updatable storage for calibration data, device settings, or event logs in the R5F100PFDFB#X0.

How does the R5F100PFDFB#X0 achieve ultra-low-power operation, and what are its lowest current modes?

The R5F100PFDFB#X0 achieves ultra-low-power operation through multiple low-power modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE. In STOP mode, only the real-time clock and low-voltage detector remain powered-enabling decade-long battery life in applications like utility meters. All modes retain RAM content and support fast wake-up via external interrupt or peripheral event in the R5F100PFDFB#X0.

Is the R5F100PFDFB#X0 pin-compatible with other RL78/G13 variants, and what package does it use?

Yes, the R5F100PFDFB#X0 uses a 100-pin LFQFP package (14 × 14 mm, 0.5-mm pitch) and is pin-compatible with other RL78/G13 devices in the same package family-including R5F100PGDFB#X0 and R5F101PFDFB#X0. This allows hardware reuse across memory- or feature-tiered designs, provided PCB layout adheres to Renesas' thermal and decoupling recommendations for the R5F100PFDFB#X0.