Renesas R5F104MGDFB#V0

Overview

R5F104MGDFB#V0 from Renesas is a 80-pin, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller with ultra-low power operation (66 μA/MHz), integrated 10-bit ADC (19 channels), dual UART/LIN interfaces, and real-time clock - deployed in industrial motor control and sensor interface modules requiring extended temperature range and secure firmware updates.

For engineers reviewing the R5F104MGDFB#V0 datasheet, R5F104MGDFB#V0 pinout, R5F104MGDFB#V0 application, or R5F104MGDFB#V0 equivalent, key selection criteria include its LFQFP-80 (0.5 mm pitch) package, -40°C to +105°C industrial grade rating (G suffix), on-chip data flash (8 KB) with 1M-cycle endurance, and hardware event link controller for deterministic peripheral triggering.

Technical Context

The R5F104MGDFB#V0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 96 KB code flash (1 KB block size), 8 KB data flash (background operation enabled), and 12 KB SRAM.

Peripherals include 12-channel 16-bit Timer Array Unit (TAU), 1-channel 12-bit interval timer, calendar RTC with alarm/correction, dual UART/LIN transceivers, 4-channel I²C, 3-channel CSI, 19-channel 10-bit ADC with internal reference and temperature sensor, and an Event Link Controller (ELC) that routes 26 event sources directly to peripherals without CPU intervention.

Key Specifications

Pinout & Package

Package: 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade plastic with internal thermal pad connection recommended.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104MGDFB#V0, R5F104MHDFB#V0 provides headroom for feature-rich firmware while maintaining identical timing and peripheral behavior, whereas R5F104MGAFB#V0 trades finer pitch for broader manufacturing compatibility - neither is pin-compatible due to differing land patterns despite identical pin count.

Availability

R5F104MGDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, factory automation I/O modules, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104MGDFB#V0 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained applications demanding high integration, robustness, and long-term supply assurance - especially in industrial and automotive body domains.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F104MGDFB#V0?

The R5F104MGDFB#V0 operates up to 32 MHz with a typical active current of 66 μA per MHz at 3.3 V. At full speed, this yields ~2.1 mA total active current. Its ultra-low-power STOP mode draws just 0.60 μA when only RTC and LVD remain active - a critical specification for battery-backed applications where R5F104MGDFB#V0 enables multi-year operation without recharge.

Does the R5F104MGDFB#V0 support in-system programming and secure firmware updates?

Yes, the R5F104MGDFB#V0 supports full in-system programming via on-chip debug interface and includes self-programming capability for both code and data flash. It implements flash shield window and block erase prohibition to prevent unauthorized access. The R5F104MGDFB#V0 also supports boot swap functionality, enabling safe firmware updates with rollback capability - essential for field-deployed R5F104MGDFB#V0-based devices requiring zero-downtime upgrades.

How many serial communication interfaces does the R5F104MGDFB#V0 integrate, and which protocols are supported?

The R5F104MGDFB#V0 integrates three UART channels (two with LIN support), four I²C interfaces, and three CSI (SPI-compatible) channels. UART2 is fully LIN 2.2-compliant with automatic sync-break detection, checksum generation, and identifier filtering. All serial peripherals are configurable via the peripheral I/O redirection registers, allowing flexible pin assignment without hardware changes - a key advantage in R5F104MGDFB#V0-based designs needing multiple concurrent bus masters.

What ADC capabilities does the R5F104MGDFB#V0 provide, and how are they utilized in sensor applications?

The R5F104MGDFB#V0 features a 10-bit successive approximation ADC with 19 input channels, internal 1.45 V reference voltage, and integrated temperature sensor. It supports scan mode with hardware-triggered conversions via ELC or timers, enabling precise synchronized sampling across multiple sensors. In R5F104MGDFB#V0-based systems, this ADC directly acquires thermistor, potentiometer, and current-sense signals without external references - reducing BOM cost and improving measurement stability over temperature.

Is the R5F104MGDFB#V0 qualified for automotive applications, and what packaging options are available?

The R5F104MGDFB#V0 carries the 'G' grade suffix, certifying operation from -40°C to +105°C and qualification for industrial and automotive body electronics (e.g., door modules, seat controllers). It is offered exclusively in 80-pin LFQFP (0.5 mm pitch) with #V0 tray packaging. While not AEC-Q100 certified out-of-box, its G-grade thermal and electrical specs align with Tier-2 automotive requirements - many R5F104MGDFB#V0 deployments undergo system-level AEC validation for end-customer approval.