Renesas R5F104FJDFP#V0

Overview

R5F104FJDFP#V0 from Renesas is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104FJDFP#V0 datasheet, R5F104FJDFP#V0 pinout, R5F104FJDFP#V0 application, or R5F104FJDFP#V0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm package, integrated 10-bit 16-channel ADC, dual UART/LIN support, and industrial-grade −40 to +85°C operation with hardware debug interface.

Technical Context

The R5F104FJDFP#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 on-chip high-accuracy ±1.0% oscillator (1–64 MHz selectable). It integrates Data Transfer Controller (DTC) for autonomous memory transfers and Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.

Its mixed-signal subsystem comprises an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC channels, two comparators with window mode, and real-time clock with calendar and alarm-enabling self-contained timing and analog monitoring in resource-constrained systems.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial temperature grade (−40 to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104FJDFP#V0, R5F104GHDFP#V0 provides 33% more flash and 33% more RAM within identical mechanical and electrical constraints, while R5F104FGDFP#V0 trades memory capacity for lower unit cost-enabling scalable family design across performance tiers.

Availability

R5F104FJDFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for R5F104FJDFP#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 industrial and consumer control applications requiring robust analog integration, flexible timing, and secure firmware update capability.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104FJDFP#V0?

The R5F104FJDFP#V0 operates up to 32 MHz with a measured performance of 44 DMIPS. This rating is achieved using the RL78 CPU core's 3-stage pipeline and is validated under standard conditions (VDD = 3.3 V, TA = 25°C). The device supports configurable clock sources including the high-accuracy ±1.0% on-chip oscillator, making the R5F104FJDFP#V0 suitable for deterministic real-time control where cycle count predictability matters.

Does the R5F104FJDFP#V0 support hardware-based firmware updates without halting application execution?

Yes, the R5F104FJDFP#V0 supports background data flash rewriting via its Data Transfer Controller (DTC) and SNOOZE mode. While the CPU remains halted, the DTC autonomously manages flash programming operations. Combined with boot swap functionality, this enables safe over-the-air updates - the R5F104FJDFP#V0 can validate new firmware in a secondary bank before switching, ensuring system reliability even during power loss.

How many analog input channels does the R5F104FJDFP#V0 ADC support, and what reference options are available?

The R5F104FJDFP#V0 integrates an 8/10-bit successive-approximation ADC supporting up to 16 analog input channels. Reference voltage options include the internal 1.45 V bandgap reference (temperature-compensated), external AVREFP/AVREFM pins, or VDD. This flexibility allows precision measurements across varying supply conditions - the R5F104FJDFP#V0 maintains 10-bit linearity (±1 LSB INL) when using the internal reference, eliminating need for external components.

Is the R5F104FJDFP#V0 pin-compatible with other RL78/G14 variants in the 44-pin LQFP package?

Yes, all RL78/G14 devices in the 44-pin LQFP-0.8 mm package-including R5F104FJDFP#V0, R5F104GHDFP#V0, and R5F104FGDFP#V0-share identical pinouts, electrical characteristics, and mechanical dimensions. Peripheral function mapping is consistent across the family; differences are limited to memory size and associated features (e.g., larger flash variants enable extended bootloader space), allowing drop-in replacement within the same package group.

What debug and programming interfaces are supported by the R5F104FJDFP#V0?

The R5F104FJDFP#V0 supports on-chip debugging via the dedicated SWJ-DP (Serial Wire JTAG Debug Port) using pins P50 (TRGIOA), P51 (TRGIOB), and RESET. It is fully compatible with Renesas E2 emulator and CS+ IDE. Flash programming is performed through the built-in bootloader using UART or dedicated debug interface - no external programmer is required for production programming of the R5F104FJDFP#V0, reducing test setup complexity.