Renesas R5F104GHGFB#V0

Overview

R5F104GHGFB#V0 from Renesas is a 48-pin LFQFP, 128 KB flash, 16 KB RAM, RL78/G14 16-bit MCU operating at 32 MHz with 44 DMIPS, 1.6–5.5 V supply, and industrial-grade −40 to +105°C temperature range. It integrates RTC, 10-bit ADC (16 channels), UART/SCI/I²C interfaces, and ultra-low-power HALT/STOP/SNOOZE modes for battery-powered sensor nodes and motor control.

For engineers reviewing the R5F104GHGFB#V0 datasheet, R5F104GHGFB#V0 pinout, R5F104GHGFB#V0 application, or R5F104GHGFB#V0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, 128 KB code flash with data flash shield window, real-time clock with calendar/alarm, and support for LIN-bus UART operation in industrial ambient conditions.

Technical Context

The R5F104GHGFB#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz). It supports multiply/divide/accumulate instructions and 1 MB address space with four register banks.

Its peripheral set includes Timer Array Unit (TAU) with 8 channels, 12-bit interval timer, watchdog timer, 16-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and dual D/A converters (8-bit, 0–VDD output) - all operating across the full 1.6–5.5 V supply range.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHGFB#V0, R5F104GLGFB#V0 provides scalable memory headroom within identical mechanical constraints, while R5F104GHAFB#V0 offers identical functionality in a more widely supported LQFP package - enabling trade-offs between board density and manufacturing flexibility.

Availability

R5F104GHGFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UI panels, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F104GHGFB#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 industrial and consumer applications demanding high integration, extended temperature operation, and robust firmware security features.

FAQ

What is the maximum operating frequency and corresponding DMIPS performance of the R5F104GHGFB#V0?

The R5F104GHGFB#V0 operates at up to 32 MHz with a measured performance of 44 DMIPS. This value is derived from the RL78 CPU core's 3-stage pipeline and instruction mix efficiency, validated per EEMBC benchmarks. The R5F104GHGFB#V0 achieves this performance across its full 1.6–5.5 V supply range and −40 to +105°C temperature envelope without derating.

Does the R5F104GHGFB#V0 support LIN bus communication, and which peripheral handles it?

Yes, the R5F104GHGFB#V0 supports LIN bus communication through its UART/SCI peripheral. Specifically, UART channels (e.g., UART0 on P50/P51 or UART2 on P13/P14) implement LIN 2.2 protocol features including automatic sync-break detection, checksum calculation, and slave node response timing - all configurable via the serial control registers without additional external transceivers.

What are the flash memory protection mechanisms available on the R5F104GHGFB#V0?

The R5F104GHGFB#V0 provides multiple flash protection layers: block-level erase/write prohibition (security function), flash shield window for selective write-enable regions, and on-chip debug lock to prevent unauthorized readout. These features are configured via dedicated flash control registers and remain active after reset, ensuring firmware IP protection and secure field updates.

How does the R5F104GHGFB#V0 manage ultra-low-power operation during RTC-only use cases?

In STOP mode, the R5F104GHGFB#V0 draws only 0.60 μA while maintaining RTC operation with calendar, alarm, and clock correction functions active. This is achieved by powering down the CPU, flash, and most peripherals while retaining the 32.768 kHz subsystem clock, LVD circuit, and RTC registers - enabling decade-scale battery life in timekeeping applications.

Which pins on the R5F104GHGFB#V0 support peripheral I/O redirection, and how is it configured?

The R5F104GHGFB#V0 supports I/O redirection for serial (SCI/I²C/CSI), timer, and interrupt functions via Peripheral I/O Redirection Registers 0 and 1 (PIOR0, PIOR1). For example, UART0 can be reassigned from default P50/P51 to alternate pins like P16/P17 by writing to PIOR0 bits - enabling flexible PCB routing without sacrificing peripheral count or functionality.