Renesas R5F104FCAFP#30

Overview

R5F104FCAFP#30 from Renesas is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller with ultra-low power operation (66 μA/MHz), 32 MHz max CPU speed, and integrated 10-bit ADC (16 channels), UART (3 channels), I²C (4 channels), and RTC. It targets battery-powered industrial sensor nodes and low-power HMI control modules.

For engineers reviewing the R5F104FCAFP#30 datasheet, R5F104FCAFP#30 pinout, R5F104FCAFP#30 application, or R5F104FCAFP#30 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, -40°C to +85°C industrial temperature grade (D), 96 KB code flash with data flash shield, and hardware event linking via ELC for deterministic peripheral coordination.

Technical Context

The R5F104FCAFP#30 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 integrates 96 KB on-chip flash (1 KB block size), 12 KB RAM, and 4 KB data flash with background operation (BGO) and 1M-cycle rewrite endurance.

Peripheral integration includes an Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention, a Data Transfer Controller (DTC) supporting chain transfers across multiple sources, and dual voltage detection (LVD) with 14 selectable levels for robust brown-out management.

Key Specifications

Pinout & Package

Package: 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade (D).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104FCAFP#30, R5F104GCAFP#30 delivers 33% more flash for complex protocol stacks, while R5F104FCAFB#30 trades package compatibility for expanded analog and digital I/O - both retain identical peripheral sets and low-power behavior.

Availability

R5F104FCAFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control, and energy meter front-ends requiring stable component supply across multi-year production cycles.

Supply support for R5F104FCAFP#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, and power 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 industrial and consumer devices requiring high integration and long-term supply stability.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104FCAFP#30?

The R5F104FCAFP#30 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This speed is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C. The RL78 core's 3-stage pipeline ensures deterministic timing for real-time control tasks, and the R5F104FCAFP#30 maintains this performance while consuming only 66 μA per MHz in active mode.

Does the R5F104FCAFP#30 support in-application programming (IAP) of its flash memory?

Yes, the R5F104FCAFP#30 supports self-programming of both code and data flash memory via its on-chip debug function and flash shield window. It enables boot swapping and secure reprogramming without external tools. The R5F104FCAFP#30 uses dedicated RAM areas (starting at FE900H) for flash library operations, and data flash supports background operation (BGO), allowing code execution during writes.

How many analog input channels does the R5F104FCAFP#30 provide, and what ADC resolution is supported?

The R5F104FCAFP#30 integrates a 10-bit successive approximation ADC with 16 analog input channels (ANI0–ANI15). It supports internal 1.45 V reference voltage and differential inputs using AVREFP/AVREFM pins. The ADC operates across the full 1.6–5.5 V supply range, enabling direct sensing from 3.3 V or 5 V systems without level-shifting circuitry.

What serial communication interfaces are available on the R5F104FCAFP#30, and how are they configured?

The R5F104FCAFP#30 provides 3 UART channels (one with LIN support), 4 I²C channels, and 3–8 CSI channels - all configurable via peripheral I/O redirection registers (PIOR0/PIOR1). Pins like P10–P15 support multiplexed SCL/SDA/SCK functions, allowing dynamic assignment of I²C or SPI roles. UART0 (P16/P17) and UART1 (P00/P01) are fixed for minimal configuration overhead in basic designs.

Is the R5F104FCAFP#30 qualified for industrial temperature operation, and what packaging does it use?

Yes, the R5F104FCAFP#30 is rated for -40°C to +85°C operation (industrial 'D' grade) and packaged in a 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch) with lead-free, RoHS-compliant finish. The 'AFP' suffix confirms the LQFP-0.8 mm package, and '#30' denotes tray packaging - making it suitable for automated SMT assembly in industrial control and metering applications.