Renesas R5F104JDAFA#30

Overview

R5F104JDAFA#30 from Renesas is a 52-pin LQFP-0.65 mm pitch, industrial-grade (D) RL78/G14 16-bit MCU with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +85°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates UART, I²C, SPI, 12-channel 16-bit timers, 10-bit ADC (16 ch), and real-time clock.

For engineers reviewing the R5F104JDAFA#30 datasheet, R5F104JDAFA#30 pinout, R5F104JDAFA#30 application, or R5F104JDAFA#30 equivalent, key selection considerations include its 52-pin LQFP package, industrial temperature rating, integrated DTC/ELC peripherals for deterministic event handling, and support for background data flash rewriting with 1M-cycle endurance.

Technical Context

The R5F104JDAFA#30 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, boot swapping, and flash shield window protection.

Its peripheral set includes 3 UART/LIN channels, 4–10 I²C interfaces, 3–8 CSI/SPI channels, Timer Array Unit (TAU) with up to 8 channels, and Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104JDAFA#30, R5F104JEAFA#30 provides headroom for feature-rich firmware growth, while R5F104JDGFA#30 maintains identical resources but extends operational reliability into +105°C environments - both retain full peripheral compatibility and require no PCB changes.

Availability

R5F104JDAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, sensor aggregation, and home appliance applications requiring stable component supply, long-term lifecycle support, and industrial-grade qualification.

Supply support for R5F104JDAFA#30 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 industrial, automotive, and enterprise markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained industrial and consumer systems requiring rich peripheral integration and robust real-time performance.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for R5F104JDAFA#30?

The R5F104JDAFA#30 operates at a maximum frequency of 32 MHz and achieves 44 DMIPS performance. This metric reflects its RL78 CPU core efficiency with 3-stage pipeline execution and is measured under standard conditions per Renesas documentation. The R5F104JDAFA#30 maintains this performance across its full 1.6–5.5 V supply range and -40 to +85°C industrial temperature grade.

Does R5F104JDAFA#30 support background data flash rewriting while executing code from main flash?

Yes, the R5F104JDAFA#30 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from code flash memory while simultaneously rewriting data flash sectors. The R5F104JDAFA#30 guarantees 1,000,000 write cycles (typical) and supports BGO across its full 1.8–5.5 V VDD range, enabling seamless field updates and parameter storage without halting application logic.

What package type and pin count does R5F104JDAFA#30 use, and is it RoHS compliant?

The R5F104JDAFA#30 uses a 52-pin LQFP package with 10 × 10 mm body and 0.65 mm pitch (RENESAS code PLQP0052JA-A). It is RoHS compliant and lead-free per Renesas standard manufacturing processes. The package includes standard power (VDD/VSS), reset, crystal (X1/X2), and multifunction I/O pins as defined in the RL78/G14 datasheet Rev. 3.70.

How many analog input channels and what ADC resolution does R5F104JDAFA#30 provide?

The R5F104JDAFA#30 integrates a 10-bit successive approximation ADC with up to 16 analog input channels (ANI0–ANI15). It includes internal reference voltage (1.45 V) and an on-die temperature sensor. The ADC operates across the full 1.6–5.5 V supply range and supports simultaneous sampling configurations via ELC-triggered conversion sequences in the R5F104JDAFA#30.

What serial communication interfaces are integrated into R5F104JDAFA#30?

The R5F104JDAFA#30 integrates three UART/LIN channels, four to ten I²C interfaces (configurable), and three to eight CSI (SPI-compatible) channels. These are implemented via shared pin resources (e.g., P10–P17) with flexible peripheral function assignment through the Peripheral I/O Redirection Registers (PIOR0/1), allowing dynamic routing without hardware redesign in the R5F104JDAFA#30.