Renesas R5F100MGDFB#X0

Overview

R5F100MGDFB#X0 from Renesas is an RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, and 8 KB RAM, operating at up to 32 MHz (41 DMIPS), supporting ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and targeting industrial control, sensor nodes, and power-constrained HMI applications.

For engineers reviewing the R5F100MGDFB#X0 datasheet, R5F100MGDFB#X0 pinout, R5F100MGDFB#X0 application, or R5F100MGDFB#X0 equivalent, key selection criteria include its LFQFP-80 package with 0.5-mm pitch, industrial-grade temperature range (–40°C to +105°C), integrated 10-bit ADC (26 channels), real-time clock with calendar, and hardware UART/I²C/CSI interfaces for embedded system integration.

Technical Context

The R5F100MGDFB#X0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz) and 1 MB address space. It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.

It features a 2-channel DMA controller (2-cycle transfers between SFR and RAM), 16×16/32÷32-bit hardware multiplier/divider, and background operation for data flash rewriting while executing code. Power management includes HALT, STOP, and SNOOZE modes, plus on-chip POR and 14-level LVD with interrupt/reset capability.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5-mm pitch), industrial-grade (–40°C to +105°C), lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100MGDFB#X0, the R5F100LGDFB#X0 reduces memory capacity for lower cost in simpler control tasks, while the R5F101MGDFB#X0 removes data flash entirely-enabling smaller die size and lower power in applications that rely on external non-volatile storage or volatile runtime configuration.

Availability

R5F100MGDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and energy metering applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F100MGDFB#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-grade embedded systems requiring robust peripheral integration and long-term supply assurance.

FAQ

What is the maximum operating frequency and performance of the R5F100MGDFB#X0?

The R5F100MGDFB#X0 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline and high-accuracy on-chip oscillator (±1.0% over –40°C to +105°C). The R5F100MGDFB#X0 maintains full peripheral functionality-including ADC, UART, and timers-at maximum frequency, enabling real-time control in demanding applications like motor drives and sensor fusion.

Does the R5F100MGDFB#X0 support in-system programming and secure firmware updates?

Yes, the R5F100MGDFB#X0 supports full in-system programming via its on-chip debug interface and self-programming flash capabilities. It includes boot swap functionality and a flash shield window to prevent unauthorized access or modification of protected code regions. These features allow field firmware updates without external programmers and ensure secure boot integrity for industrial and metering applications using the R5F100MGDFB#X0.

What are the power-saving modes supported by the R5F100MGDFB#X0, and what is the lowest current draw?

The R5F100MGDFB#X0 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA at VDD = 3.0 V and TA = 25°C. This ultra-low quiescent current enables decade-long battery operation in wireless sensor nodes and portable instrumentation where the R5F100MGDFB#X0 serves as the primary system controller.

How many analog-to-digital converter (ADC) channels does the R5F100MGDFB#X0 provide, and what is its resolution?

The R5F100MGDFB#X0 integrates a 10-bit successive-approximation ADC with up to 26 input channels. It supports internal reference voltage (1.45 V) and includes an on-chip temperature sensor usable in HS mode. All 26 channels are accessible across its 80-pin LFQFP package, making the R5F100MGDFB#X0 well-suited for multi-sensor monitoring in industrial and environmental applications.

Is the R5F100MGDFB#X0 pin-compatible with other RL78/G13 variants in the same package?

Yes, all RL78/G13 devices in the 80-pin LFQFP-0.5mm package-including R5F100MGDFB#X0, R5F100LGDFB#X0, and R5F101MGDFB#X0-share identical pinouts and electrical characteristics. This enables direct substitution during design iteration or cost optimization without PCB layout changes, provided peripheral usage and memory requirements align with the selected variant's specifications.