Renesas R5F104JDGFA#V0

Overview

R5F104JDGFA#V0 from Renesas is a 52-pin LQFP-0.65mm industrial-grade RL78/G14 16-bit microcontroller with 256 KB flash, 20 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C. It integrates a 32 MHz RL78 CPU core (44 DMIPS), 12-bit RTC, 10-bit 16-channel ADC, dual 8-bit DACs, and multiple serial interfaces including UART/LIN, I²C, and CSI for embedded control in resource-constrained environments.

For engineers reviewing the R5F104JDGFA#V0 datasheet, R5F104JDGFA#V0 pinout, R5F104JDGFA#V0 application, or R5F104JDGFA#V0 equivalent, key selection criteria include its industrial temperature rating (G-grade), 52-pin LQFP package with 0.65 mm pitch, integrated RTC with calendar/alarm, background data flash rewrite capability, and support for low-power SNOOZE/STOP modes down to 0.60 μA.

Technical Context

The R5F104JDGFA#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It supports on-chip debug, self-programming with boot swap, and flash shield window protection.

Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat transfer modes, and dual 8-bit DACs with real-time output. The device uses a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) and features 14-level LVD with interrupt/reset options.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, exposed pad not applicable (plastic LQFP).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104JDGFA#V0, R5F104JHGFA#V0 offers identical peripheral functionality at lower flash density for cost optimization, while R5F104JJGFA#V0 sacrifices RAM and data flash-making it unsuitable for applications requiring local parameter storage or real-time signal processing buffers.

Availability

R5F104JDGFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial motor drives, building automation nodes, and portable medical diagnostics requiring stable component supply across extended product lifecycles.

Supply support for R5F104JDGFA#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust timing, analog integration, and long-term supply assurance.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104JDGFA#V0?

The R5F104JDGFA#V0 operates at up to 32 MHz with its RL78 CPU core, delivering 44 DMIPS of processing performance. Its high-speed on-chip oscillator supports frequencies from 1 MHz to 64 MHz with ±1.0% accuracy across the full industrial temperature range (-40 to +105°C), enabling deterministic real-time execution without external crystal dependency.

Does the R5F104JDGFA#V0 support in-system programming and secure firmware updates?

Yes, the R5F104JDGFA#V0 supports full in-system programming via on-chip debug interface and includes flash shield window functionality to protect critical bootloader regions. Its self-programming capability with boot swap allows atomic firmware updates, while the 8 KB data flash with background operation (BGO) enables runtime parameter storage without halting application code execution.

How many analog input channels and what resolution does the ADC in the R5F104JDGFA#V0 provide?

The R5F104JDGFA#V0 integrates a 10-bit successive approximation ADC with 16 analog input channels (ANI0–ANI15 plus ANI16–ANI19 on specific pins). It supports internal 1.45 V reference voltage and temperature sensor input, enabling precision measurement across the full 1.6–5.5 V supply range without external reference components.

What low-power modes are available on the R5F104JDGFA#V0, and what is the lowest achievable current draw?

The R5F104JDGFA#V0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA-enabling multi-year operation on coin-cell batteries. HALT mode consumes 66 μA/MHz, and SNOOZE allows selective peripheral operation while CPU remains halted, balancing responsiveness and power savings.

Is the R5F104JDGFA#V0 pin-compatible with other RL78/G14 variants in the same package footprint?

Yes, all RL78/G14 devices in the 52-pin LQFP-0.65mm package-including R5F104JDGFA#V0, R5F104JHGFA#V0, and R5F104JJGFA#V0-share identical pinouts and electrical characteristics. This allows direct substitution within the same package family for memory or feature scaling, provided software accommodates differences in flash/RAM size and peripheral enablement.