Renesas R5F104GJDFB#30

Overview

R5F104GJDFB#30 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (−40°C to +105°C) 16-bit RL78/G14 microcontroller with 192 KB flash, 8 KB data flash, 20 KB RAM, and integrated peripherals including 12-bit RTC, 10-bit ADC (20 channels), UART/LIN ×3, I²C ×4, CSI ×3, 16-bit timers ×12, and ultra-low-power operation (66 μA/MHz active, 0.60 μA in RTC+LVD mode).

For engineers reviewing the R5F104GJDFB#30 datasheet, R5F104GJDFB#30 pinout, R5F104GJDFB#30 application, or R5F104GJDFB#30 equivalent, this page delivers verified electrical specs, package mapping, functional role in sensor hubs and motor control, and validated alternative options for industrial embedded design.

Technical Context

The R5F104GJDFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @32 MHz to 30.5 µs @32.768 kHz). It integrates a Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes triggered by 19–26 event sources via the Event Link Controller (ELC).

Its analog subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DACs (0–VDD output), and up to two comparators with selectable internal/external reference. Power management features HALT, STOP, and SNOOZE modes plus on-chip LVD with 14 interrupt/reset levels.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHDFB#30, the R5F104GJDFB#30 provides 64 KB additional flash for field-upgradable firmware and enhanced security features; versus R5F104GJAFB#30, it enables higher-density PCB layouts with finer-pitch assembly while retaining identical functional capability.

Availability

R5F104GJDFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, energy metering, home appliance control, and IIoT edge node applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F104GJDFB#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 automotive, industrial, and IoT markets.

The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications demanding high integration, robustness, and long-term supply assurance.

FAQ

What is the maximum operating frequency and corresponding power consumption of the R5F104GJDFB#30?

The R5F104GJDFB#30 operates up to 32 MHz with a typical active current of 66 μA per MHz. At full 32 MHz operation with all peripherals enabled, total supply current is approximately 2.1 mA (VDD = 3.3 V, TA = 25°C). Its ultra-low-power HALT and STOP modes reduce current to sub-μA levels, enabling multi-year battery life in RTC-critical applications.

Does the R5F104GJDFB#30 support in-system programming and secure firmware updates?

Yes, the R5F104GJDFB#30 supports full in-system programming via on-chip debug interface and includes flash shield window protection to prevent unauthorized readout. It enables secure firmware updates using boot swapping and background data flash rewriting-allowing new code to be written while the current application runs uninterrupted.

What are the key differences between the R5F104GJDFB#30 and R5F104GJAFB#30?

The R5F104GJDFB#30 uses a 48-pin LFQFP (0.5 mm pitch) package, while the R5F104GJAFB#30 uses a 48-pin LQFP (0.8 mm pitch) package. Both share identical 192 KB flash, 8 KB data flash, 20 KB RAM, and peripheral sets. The LFQFP variant enables denser PCB layouts and finer-pitch assembly, whereas the LQFP variant suits legacy designs with wider pad spacing requirements.

Can the R5F104GJDFB#30 operate reliably across the full −40°C to +105°C range?

Yes, the R5F104GJDFB#30 is rated for industrial temperature operation from −40°C to +105°C (G-suffix). All specifications-including flash endurance, ADC accuracy, oscillator stability (±1.0% over −20°C to +85°C), and LVD threshold consistency-are guaranteed across this range, making it suitable for under-hood automotive modules and factory-floor controllers.

How many serial communication interfaces does the R5F104GJDFB#30 integrate, and what protocols do they support?

The R5F104GJDFB#30 integrates three UART/LIN channels (supporting LIN 2.2 protocol), four I²C channels (standard/fast-mode), and three CSI channels (functionally equivalent to SPI). These interfaces operate independently and can be routed to multiple pin sets via peripheral I/O redirection registers (PIOR0/1), enabling flexible board-level signal assignment without hardware changes.