Renesas R5F104GHGFB#30

Overview

R5F104GHGFB#30 from Renesas is a 48-pin LFQFP, 128 KB flash, 16 KB RAM, RL78/G14 16-bit MCU operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), used in industrial sensor nodes and battery-powered control modules.

For engineers reviewing the R5F104GHGFB#30 datasheet, R5F104GHGFB#30 pinout, R5F104GHGFB#30 application, or R5F104GHGFB#30 equivalent, key selection factors include its -40°C to +105°C industrial-grade temperature rating (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 real-time peripheral coordination.

Technical Context

The R5F104GHGFB#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock), and includes multiply/divide/accumulate instructions with 1 MB address space.

It integrates a configurable 10-bit A/D converter (20 channels, internal 1.45 V reference, temperature sensor), dual UARTs with LIN-bus compliance, 8-channel 16-bit Timer Array Unit (TAU), real-time clock with calendar/alarm, and Event Link Controller (ELC) enabling direct hardware-triggered peripheral chaining without CPU intervention.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GJGFB#30, the R5F104GHGFB#30 trades flash capacity for identical peripheral set and lower unit cost; versus R5F104GHAFB#30, it offers finer 0.5 mm pitch for compact PCBs but demands tighter assembly control.

Availability

R5F104GHGFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply across extended product lifecycles.

Supply support for R5F104GHGFB#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 industrial, automotive, and infrastructure markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose applications - optimized for industrial control, home appliances, and sensor edge devices requiring robust operation from -40°C to +105°C.

FAQ

What is the maximum operating frequency and associated performance of the R5F104GHGFB#30?

The R5F104GHGFB#30 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0%), delivering 44 DMIPS. Its RL78 CPU core achieves minimum instruction execution times of 0.03125 µs at full speed, with scalable clock options down to 32.768 kHz for ultra-low-power RTC operation. This performance envelope supports real-time control loops, protocol stacks, and sensor fusion without external acceleration.

Does the R5F104GHGFB#30 support LIN bus communication, and how is it implemented?

Yes, the R5F104GHGFB#30 supports LIN 2.2 bus communication via its two UART channels, which include dedicated LIN features such as automatic sync-break detection, checksum calculation, and identifier filtering. The UARTs operate independently and can be configured for master or slave roles, enabling direct integration into automotive body electronics or industrial sub-networks without external transceivers beyond physical layer drivers.

What are the power supply requirements and low-power capabilities of the R5F104GHGFB#30?

The R5F104GHGFB#30 operates from a single 1.6 V to 5.5 V supply, supporting direct interfacing with 1.8 V, 2.5 V, and 3.3 V systems. It features three ultra-low-power modes: HALT (66 μA/MHz active current), STOP (0.60 μA with RTC and LVD active), and SNOOZE (ADC-triggered conversions during sleep). These modes are controlled via dedicated registers and supported by on-chip POR and 14-level LVD for robust brownout protection.

How many analog input channels does the R5F104GHGFB#30 provide, and what resolution and references are available?

The R5F104GHGFB#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19). It supports internal 1.45 V reference voltage and external reference inputs, along with an on-chip temperature sensor. Conversion is hardware-triggered via ELC or software-initiated, and results are accessible via memory-mapped registers - enabling precise thermal monitoring and sensor interfacing without external precision references.

What debug and programming interfaces are available on the R5F104GHGFB#30?

The R5F104GHGFB#30 provides a full on-chip debug interface compliant with Renesas E1/E20 emulators, using dedicated TOOL0, TOOLRxD, and TOOLTxD pins for SWD communication. It supports flash self-programming with boot swapping, flash shield window security, and background data flash rewriting. Debug features include real-time trace clock outputs (TRGCLKA/B), TRDIO pins for trace data, and hardware breakpoints - enabling full visibility into runtime behavior during development and validation.