Renesas R5F104FAGFP#10

Overview

R5F104FAGFP#10 from Renesas 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 1.6–5.5 V at -40°C to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (16 channels), UART/SCI/I²C interfaces, RTC, and hardware DTC/ELC for sensor control and industrial HMI applications.

For engineers reviewing the R5F104FAGFP#10 datasheet, R5F104FAGFP#10 pinout, R5F104FAGFP#10 application, or R5F104FAGFP#10 equivalent, this page provides verified technical context, package-validated pin functions, real-world use cases in industrial sensing and motor control, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The R5F104FAGFP#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem comprises 96 KB on-chip code flash (1 KB block size), 8 KB data flash with background operation (BGO), and 12 KB RAM - all accessible within a 1 MB address space.

Peripherals include 16-bit Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, watchdog timer, 10-bit ADC (16 analog inputs), 8-bit DAC (2 channels), dual comparators, and serial interfaces: 3–4 UART/SCI channels (LIN-capable), 4–10 I²C channels, and 3–8 CSI (SPI-compatible) channels - all managed via Event Link Controller (ELC) and Data Transfer Controller (DTC).

Key Specifications

Pinout & Package

Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade G-temperature rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104FGGFP#10 and R5F104FJGFP#10, the R5F104FAGFP#10 provides the minimal viable flash/RAM configuration for industrial sensor nodes and simple motor controls - reducing BOM cost while retaining full peripheral compatibility and G-grade temperature support.

Availability

R5F104FAGFP#10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, factory automation I/O modules, and automotive body electronics requiring stable component supply across long production lifecycles.

Supply support for R5F104FAGFP#10 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, and power solutions for industrial, automotive, and IoT markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, integration, and energy efficiency for industrial HMI, sensor nodes, and appliance control.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104FAGFP#10?

The R5F104FAGFP#10 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device maintains this performance across its full 1.6–5.5 V supply range and -40°C to +105°C industrial temperature grade, making it suitable for deterministic real-time tasks such as motor control loops and sensor fusion algorithms.

Does the R5F104FAGFP#10 support in-system programming and secure firmware updates?

Yes, the R5F104FAGFP#10 supports self-programming of both code and data flash memory, including boot swapping and flash shield window protection. Its 96 KB code flash includes block-erase prohibition and on-chip debug functionality, enabling secure field firmware updates without external programmers. The flash library uses RAM starting at address FE900H, and rewriting is supported across the full 1.8–5.5 V VDD range.

What analog peripherals are integrated into the R5F104FAGFP#10?

The R5F104FAGFP#10 integrates a 10-bit successive-approximation ADC with up to 16 analog input channels (ANI0–ANI15), internal 1.45 V reference voltage, and temperature sensor. It also includes an 8-bit DAC with up to two output channels (ANO0/ANO1), two comparators with selectable reference sources, and dedicated AVREFP/AVREFM pins for precision analog measurements - eliminating the need for external reference or signal-conditioning ICs in most sensor applications.

How does the R5F104FAGFP#10 achieve ultra-low power consumption in industrial applications?

The R5F104FAGFP#10 achieves 66 μA/MHz active current and 0.60 μA in STOP mode (RTC + LVD only) through multiple hardware features: configurable low-power modes (HALT, STOP, SNOOZE), voltage regulator optimization, and peripheral clock gating. Its -40°C to +105°C G-grade qualification ensures stable ultra-low-power operation in harsh environments like factory floors or automotive under-hood locations.

Which serial communication interfaces are available on the R5F104FAGFP#10, and how are they configured?

The R5F104FAGFP#10 provides three UART/SCI channels (with LIN-bus support), up to ten I²C channels, and three to eight CSI (SPI-compatible) channels. These interfaces are multiplexed onto GPIO pins (e.g., P10–P15 for SCI/SPI/I²C) and configurable via peripheral I/O redirection registers (PIOR0/1). The Event Link Controller (ELC) enables hardware-triggered transfers, allowing autonomous serial data movement without CPU intervention.