Renesas R5F104GFAFB#30

Overview

R5F104GFAFB#30 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6 V to 5.5 V across –40°C to +105°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in motor control and sensor-based industrial HMI systems.

For engineers reviewing the R5F104GFAFB#30 datasheet, R5F104GFAFB#30 pinout, R5F104GFAFB#30 application, or R5F104GFAFB#30 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm package, 96 KB/12 KB/8 KB memory configuration, industrial temperature rating (–40°C to +105°C), integrated analog peripherals (ADC, DAC, comparator), and support for low-power modes including STOP, HALT, and SNOOZE.

Technical Context

The R5F104GFAFB#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 supports multiply/divide/accumulate instructions and a 1 MB address space with four banks of 8-bit general-purpose registers.

Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, watchdog timer, 10-bit ADC (16-channel, internal 1.45 V reference), 8-bit DAC (2-channel, 0–VDD output), and dual comparators with window/high-speed/low-speed modes - all accessible via Event Link Controller (ELC) for hardware-triggered event chaining.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, exposed pad not present (non-HWQFN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GFAFB#30, R5F104GGAFB#30 offers 33% more flash and 33% more RAM at identical pin compatibility and power profile, while R5F104GHAFB#30 further increases capacity by 100% over the base variant - enabling scalable firmware development across product tiers without PCB redesign.

Availability

R5F104GFAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, HMI panels, PLC I/O modules, and battery-powered telemetry systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104GFAFB#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 family is designed for cost-sensitive, ultra-low-power embedded applications demanding high integration, robust operation across –40°C to +105°C, and seamless migration from legacy 8/16-bit platforms.

FAQ

What is the maximum operating frequency and performance of the R5F104GFAFB#30?

The R5F104GFAFB#30 operates at up to 32 MHz and delivers 44 DMIPS. Its RL78 CPU core achieves this with a 3-stage pipeline and optimized instruction set, enabling deterministic real-time response for motor control and sensor processing tasks. The R5F104GFAFB#30 maintains full peripheral functionality at maximum frequency, including ADC sampling and UART communication.

Does the R5F104GFAFB#30 support in-system programming and secure firmware updates?

Yes, the R5F104GFAFB#30 supports self-programming with boot swapping and flash shield window protection. This allows safe field firmware updates without external programmers, while preventing unauthorized access to protected code blocks. The R5F104GFAFB#30 also includes an on-chip debug interface accessible via P50/P51 pins for development and validation.

What analog peripherals are integrated into the R5F104GFAFB#30?

The R5F104GFAFB#30 integrates a 10-bit ADC with 16 input channels and internal 1.45 V reference, an 8-bit DAC with two output channels (0–VDD range), and two comparators with selectable reference sources and operating modes (high-speed, low-speed, window). These peripherals are directly usable for sensor signal conditioning and actuator control without external components.

How does the R5F104GFAFB#30 manage ultra-low power operation in battery-powered applications?

The R5F104GFAFB#30 achieves 0.60 μA in STOP mode with RTC and LVD active, and 66 μA/MHz in active mode. It supports multiple low-power states (HALT, STOP, SNOOZE), programmable LVD thresholds, and background data flash rewriting (BGO) - allowing sustained operation on coin-cell batteries for multi-year deployments. The R5F104GFAFB#30's power architecture eliminates need for external supervisors or power sequencers.

Is the R5F104GFAFB#30 pin-compatible with other RL78/G14 variants in the same package?

Yes, the R5F104GFAFB#30 is fully pin-compatible with all 48-pin LFQFP RL78/G14 variants sharing the FB suffix (e.g., R5F104GGAFB#30, R5F104GHAFB#30). Pin functions, electrical characteristics, and package dimensions are identical - enabling drop-in replacement for memory scaling without PCB changes. The R5F104GFAFB#30 maintains consistent peripheral mapping across this footprint family.