Renesas R5F104FGAFP#V0

Overview

R5F104FGAFP#V0 from Renesas Electronics is a 44-pin LQFP-packaged 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 +85°C. It delivers 44 DMIPS at 32 MHz, integrates a real-time clock with calendar function, 10-bit A/D converter (20-channel), and ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering interfaces.

For engineers reviewing the R5F104FGAFP#V0 datasheet, R5F104FGAFP#V0 pinout, R5F104FGAFP#V0 application, or R5F104FGAFP#V0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 96 KB code flash with self-programming and boot swap, integrated 10-bit ADC with internal reference, and support for LIN-bus UART channels in consumer/industrial temperature grades.

Technical Context

The R5F104FGAFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It features an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event triggering without CPU intervention, and a Data Transfer Controller (DTC) supporting block, repeat, and chain transfer modes activated by interrupts.

Its power management includes on-chip POR and 14-level voltage detector (LVD) with interrupt/reset options, while the high-accuracy ±1.0% on-chip oscillator supports 12 selectable frequencies from 1 MHz to 64 MHz. The device integrates a 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and background operation (BGO) for data flash rewriting during program execution.

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, plastic body with exposed pad not required (non-HWQFN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104GHAFP#V0, the R5F104FGAFP#V0 trades flash headroom for cost-sensitive volume production; compared with R5F104FGAFB#V0, it offers identical functionality in a larger-pitch, easier-to-assemble LQFP package-ideal for prototyping and medium-volume industrial controls.

Availability

R5F104FGAFP#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and full traceability through Renesas' qualified distribution network.

Supply support for R5F104FGAFP#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, battery-operated, and industrial-grade embedded systems requiring high integration and long-term reliability.

FAQ

What is the maximum operating frequency and associated performance of the R5F104FGAFP#V0?

The R5F104FGAFP#V0 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This frequency is achievable using the high-accuracy on-chip oscillator (±1.0% over –20°C to +85°C), eliminating the need for an external crystal in many applications. Its 3-stage pipeline RL78 core ensures consistent instruction timing critical for real-time control loops in the R5F104FGAFP#V0.

Does the R5F104FGAFP#V0 support LIN bus communication, and how is it implemented?

Yes, the R5F104FGAFP#V0 supports LIN bus communication via its UART peripherals, which include LIN-specific features such as break detection, sync field handling, and checksum generation. Up to four UART channels are available, with UART2 explicitly supporting LIN-bus protocol in hardware-enabling seamless integration into automotive body electronics or industrial sub-networks without external LIN transceivers in the R5F104FGAFP#V0.

What are the memory resources allocated to the R5F104FGAFP#V0, and how is data flash utilized?

The R5F104FGAFP#V0 integrates 96 KB of code flash memory, 12 KB of RAM, and 8 KB of dedicated data flash memory. The data flash supports background operation (BGO), allowing program execution from code flash while simultaneously rewriting data flash-essential for secure firmware updates, parameter storage, or event logging. Its 1,000,000-cycle endurance rating ensures reliability in the R5F104FGAFP#V0's long-life deployments.

How does the R5F104FGAFP#V0 achieve ultra-low power consumption in STOP mode?

The R5F104FGAFP#V0 achieves 0.60 μA STOP mode current by retaining only the real-time clock (RTC) and low-voltage detector (LVD) circuits while disabling the CPU, flash, and most peripherals. The RTC maintains calendar functionality with alarm and clock correction, and the LVD monitors supply voltage with configurable thresholds-enabling wake-up on time or voltage events without external circuitry in the R5F104FGAFP#V0.

What package type and pin count does the R5F104FGAFP#V0 use, and what are its key mechanical attributes?

The R5F104FGAFP#V0 uses a 44-pin LQFP package (10 × 10 mm body, 0.8 mm lead pitch) with gull-wing leads and RoHS-compliant finish. Its #V0 packaging specification indicates tray delivery, and the package supports standard reflow soldering profiles. The pinout includes dedicated analog input banks (P20–P27), multiple serial interface groups, and flexible I/O redirection-making the R5F104FGAFP#V0 suitable for compact, high-density industrial PCB layouts.