Renesas R5F104JJGFA#V0

Overview

R5F104JJGFA#V0 from Renesas is a 52-pin LQFP-0.65mm 256 KB flash, 8 KB data flash, 20 KB RAM RL78/G14 16-bit microcontroller operating at 32 MHz with 44 DMIPS, ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrated peripherals including 12-bit RTC, 10-bit ADC (16 ch), UART/LIN (3 ch), I²C (4 ch), and 16-bit timers (10 ch) for industrial sensor control and motor management.

For engineers reviewing the R5F104JJGFA#V0 datasheet, R5F104JJGFA#V0 pinout, R5F104JJGFA#V0 application, or R5F104JJGFA#V0 equivalent, this page delivers verified electrical specs, package mapping, functional role in real-time embedded systems, and validated alternative options for design continuity and supply resilience.

Technical Context

The R5F104JJGFA#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 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 mixed-signal subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs (0–VDD), two comparators with window/high-speed/low-speed modes, and hardware BCD correction - all operating across 1.6–5.5 V supply and -40 to +105°C ambient range (industrial G-grade).

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104JHGFA#V0, the R5F104JJGFA#V0 provides 64 KB more flash for complex control algorithms or OTA update partitions; versus R5F104LJGFA#V0, it offers identical functionality in a smaller 52-pin footprint-reducing PCB area and layer count without sacrificing RAM or data flash capacity.

Availability

R5F104JJGFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, home appliance control panels, and battery-backed real-time instrumentation requiring stable component supply across extended temperature ranges.

Supply support for R5F104JJGFA#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 industrial and consumer applications requiring rich analog integration and robust real-time performance.

FAQ

What is the maximum operating frequency and core performance of the R5F104JJGFA#V0?

The R5F104JJGFA#V0 operates at up to 32 MHz with the RL78 CPU core delivering 44 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across -20 to +85°C, eliminating need for external crystals in many timing-critical applications. The R5F104JJGFA#V0 supports configurable instruction timing from 0.03125 μs (high-speed) to 30.5 μs (ultra-low-speed) depending on clock source selection.

Does the R5F104JJGFA#V0 support real-time clock (RTC) with calendar functionality?

Yes, the R5F104JJGFA#V0 integrates a 12-bit real-time clock with full calendar support (99-year range), alarm function, and clock correction capability. It operates independently in STOP mode with only 0.60 μA current draw when powered by VDD, enabling accurate timekeeping during ultra-low-power sleep states without external RTC ICs.

What analog peripherals are included in the R5F104JJGFA#V0 and what are their key specifications?

The R5F104JJGFA#V0 includes a 10-bit ADC with 16 input channels, internal 1.45 V reference voltage, and integrated temperature sensor; two 8-bit DACs with 0–VDD output range and real-time update capability; and up to two comparators with selectable reference (internal/external) and operating modes (high-speed, low-speed, window). All analog functions operate across the full 1.6–5.5 V supply range.

How does the R5F104JJGFA#V0 handle low-power operation and wake-up events?

The R5F104JJGFA#V0 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with RTC and LVD active, it draws just 0.60 μA. Wake-up sources include external interrupts (INTP0–INTP10), RTC alarm, comparator output, and peripheral events routed via the Event Link Controller (ELC), enabling deterministic, low-latency resumption without CPU polling.

Is the R5F104JJGFA#V0 pin-compatible with other RL78/G14 variants in the same package?

Yes, the R5F104JJGFA#V0 is pin-compatible with all other RL78/G14 devices in the 52-pin LQFP-0.65mm package (e.g., R5F104JH/FG/EG/CG), sharing identical pin configuration, electrical characteristics, and peripheral mapping. Firmware portability is ensured across flash-size variants within this pinout family.