Renesas R5F104GGAFB#30

Overview

R5F104GGAFB#30 from Renesas is a 48-pin LFQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104GGAFB#30 datasheet, R5F104GGAFB#30 pinout, R5F104GGAFB#30 application, or R5F104GGAFB#30 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G-suffix), 48-pin 0.5 mm pitch LFQFP package, integrated 10-bit 20-channel ADC, dual UART/LIN support, and hardware DTC/ELC for deterministic peripheral event handling.

Technical Context

The R5F104GGAFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed on-chip oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates a Data Transfer Controller (DTC) with chain transfer and a 26-source Event Link Controller (ELC) for low-latency peripheral synchronization without CPU intervention.

Its mixed-signal subsystem includes a 10-bit A/D converter with internal 1.45 V reference and temperature sensor, an 8-bit D/A converter with real-time output, two comparators (selectable reference source), and a calendar-mode real-time clock with alarm and correction functions - all operating within the same 1.6–5.5 V supply range.

Key Specifications

Pinout & Package

Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHAFB#30 and R5F104GFDFB#30, the R5F104GGAFB#30 delivers optimal balance of memory (96 KB flash/12 KB RAM), industrial temperature rating, and peripheral integration - making it ideal for new designs requiring robust feature set without over-provisioning.

Availability

R5F104GGAFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, and programmable logic relays requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for R5F104GGAFB#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 targets cost-sensitive, ultra-low-power general-purpose applications requiring high integration, industrial temperature resilience, and long-term supply stability - with R5F104GGAFB#30 serving as a mainstream variant optimized for balanced performance and memory.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104GGAFB#30?

The R5F104GGAFB#30 achieves a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. This rating is measured under standard conditions (VDD = 3.3 V, TA = 25°C) and reflects sustained integer throughput - sufficient for real-time control loops, sensor fusion, and lightweight protocol stacks without external acceleration.

Does the R5F104GGAFB#30 support LIN bus communication, and which UART channels provide it?

Yes, the R5F104GGAFB#30 supports LIN bus communication on UART channels 0, 1, and 2. Each channel includes dedicated LIN break detection, sync field generation, and identifier filtering compliant with ISO 9141-2 and SAE J2602 standards. UART0 (P50/P51) is commonly used for LIN master/slave roles due to its TOOL interface compatibility for development and diagnostics.

What is the purpose of the REGC pin on the R5F104GGAFB#30, and how must it be connected?

The REGC pin on the R5F104GGAFB#30 is the bypass capacitor terminal for the on-chip voltage regulator. It must be connected directly to VSS via a 0.47 µF to 1 µF ceramic capacitor placed as close as possible to the pin. Failure to install this capacitor results in unstable internal voltage regulation, leading to erratic reset behavior, flash programming failures, or degraded ADC accuracy - especially under dynamic load or temperature variation.

How many analog input channels does the 10-bit ADC in the R5F104GGAFB#30 support, and what reference options are available?

The R5F104GGAFB#30 integrates a 10-bit successive-approximation ADC supporting up to 20 analog input channels. Reference voltage options include the internal 1.45 V bandgap reference, AVREFP/AVREFM differential pair, or external reference applied to dedicated pins. The internal reference enables standalone operation without external components, while differential referencing improves noise immunity in motor control or industrial signal conditioning.

Is the R5F104GGAFB#30 pin-compatible with other RL78/G14 variants in the same 48-pin LFQFP package?

Yes, the R5F104GGAFB#30 is fully pin-compatible with all other RL78/G14 variants offered in the 48-pin LFQFP (0.5 mm pitch) package, including R5F104GHAFB#30, R5F104GFDFB#30, and R5F104GEAFB#30. Pin functions, electrical characteristics, and mechanical footprint are identical across this package group - enabling drop-in replacement during design iteration or volume procurement without PCB revision.