Renesas R5F100MFDFB#X0

Overview

R5F100MFDFB#X0 from Renesas is an RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB data flash, and 8 KB RAM, operating at up to 32 MHz (41 DMIPS), supporting ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and multiple serial interfaces (UART, I²C, CSI) in an 80-pin LFQFP package for industrial motor control and sensor node applications.

For engineers reviewing the R5F100MFDFB#X0 datasheet, R5F100MFDFB#X0 pinout, R5F100MFDFB#X0 application, or R5F100MFDFB#X0 equivalent, key selection criteria include its 80-pin LFQFP-0.5mm pitch footprint, industrial-grade -40°C to +85°C operation (D-grade), integrated RTC with calendar/alarm, and background data flash rewrite capability enabling firmware updates without halting execution.

Technical Context

The R5F100MFDFB#X0 implements the RL78 CPU core with a 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a DMA controller (4 channels), multiplier/divider unit, and on-chip debug circuitry with boot swap functionality.

Its power architecture includes HALT, STOP, and SNOOZE low-power modes, POR and LVD reset circuits (14 selectable voltage levels), and a high-accuracy ±1.0% on-chip oscillator (1–32 MHz). The device supports background operation (BGO) for data flash rewriting while executing code from program memory.

Key Specifications

Pinout & Package

80-pin LFQFP (PLQP0080KE-A), 12 × 12 mm body, 0.5 mm pitch, exposed pad not present, moisture sensitivity level (MSL) 3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100MFDFB#X0, R5F100MGDFB#X0 offers scalable memory for feature-rich firmware, while R5F101MFDFB#X0 removes data flash to lower cost and simplify certification-both retain full pin and software compatibility for drop-in migration paths.

Availability

R5F100MFDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, wireless sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for R5F100MFDFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.

The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring extended battery life, integrated analog peripherals, and robust real-time control capabilities.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F100MFDFB#X0?

The R5F100MFDFB#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This value is derived from the RL78 core's 3-stage pipeline and instruction mix efficiency, validated per Renesas' benchmark methodology in R01DS0131EJ0380. The R5F100MFDFB#X0 achieves this performance while maintaining ultra-low-power operation down to 66 μA/MHz in active mode.

Does the R5F100MFDFB#X0 include an integrated real-time clock (RTC) with calendar functionality?

Yes, the R5F100MFDFB#X0 integrates a full-featured RTC with calendar support for years, months, days, hours, minutes, and seconds; alarm interrupt capability; and automatic clock correction. This RTC operates independently in STOP mode using the 32.768 kHz subsystem clock, consuming only 0.57 μA total with LVD enabled-confirmed in Section 1.1 of R01DS0131EJ0380. The R5F100MFDFB#X0 requires no external crystal or RTC IC for timekeeping.

What are the data flash endurance and voltage requirements for programming the R5F100MFDFB#X0?

The R5F100MFDFB#X0 features 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V. Background operation (BGO) allows code execution from program memory during data flash rewrites, ensuring deterministic real-time behavior. These specifications are documented in Section 1.1 "Data Flash Memory" of R01DS0131EJ0380 and apply directly to the R5F100MFDFB#X0.

Which package type and pin count does the R5F100MFDFB#X0 use, and what is its pitch?

The R5F100MFDFB#X0 uses an 80-pin LFQFP package (RENESAS code PLQP0080KE-A) with 12 × 12 mm body dimensions and 0.5 mm pin pitch. The "FB" suffix in the part number explicitly denotes LFQFP, and "#X0" indicates embossed tape packaging. This package is RoHS-compliant, lead-free, and rated MSL3 per J-STD-020-verified in Table 1-1 (Page 11) and Figure 1-1 of R01DS0131EJ0380.

How many analog input channels does the 10-bit ADC in the R5F100MFDFB#X0 support, and does it include internal references?

The R5F100MFDFB#X0 integrates a 10-bit successive-approximation ADC supporting up to 26 analog input channels. It includes an internal 1.45 V reference voltage and an on-die temperature sensor-both accessible via dedicated registers and usable across the full 1.6–5.5 V VDD range. These features are confirmed in Section 1.1 "A/D converter" and Table 1-1 memory mapping of R01DS0131EJ0380 and apply specifically to the R5F100MFDFB#X0 variant.