Renesas R5F104PFAFA#V0

Overview

R5F104PFAFA#V0 from Renesas is a 100-pin LQFP-packaged RL78/G14 16-bit microcontroller with 96 KB flash, 4 KB data flash, and 5.5 KB RAM, operating from 1.6–5.5 V at -40 to +85°C (A-grade), featuring ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD), 32 MHz max CPU speed (44 DMIPS), and integrated peripherals including 10-bit ADC (16 channels), UART/LIN (4 channels), I²C (4 channels), and 12-bit RTC.

For engineers reviewing the R5F104PFAFA#V0 datasheet, R5F104PFAFA#V0 pinout, R5F104PFAFA#V0 application, or R5F104PFAFA#V0 equivalent, key selection considerations include its A-grade industrial temperature rating, 100-pin 0.65 mm pitch LQFP package, 96 KB code flash with self-programming and security lock, and support for background data flash rewriting (BGO) at full VDD range (1.8–5.5 V).

Technical Context

The R5F104PFAFA#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates 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 19–26 interrupt sources.

Power management includes HALT, STOP, and SNOOZE low-power modes, on-chip POR and 14-level LVD, and a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable). Peripheral integration covers 8–20-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs (0–VDD), and up to two comparator channels with window/high-speed/low-speed modes.

Key Specifications

Pinout & Package

Package: 100-pin LQFP, 14 × 20 mm, 0.65 mm pitch, plastic body with exposed thermal pad (PLQP0100JC-A code).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104PGFAFA#V0 and R5F104PFAFB#V0, the R5F104PFAFA#V0 provides optimal balance of memory headroom, thermal performance (larger LQFP pad area), and standard 0.65 mm pitch manufacturability-making it ideal for cost-sensitive industrial and appliance applications requiring proven yield and long-term supply stability.

Availability

R5F104PFAFA#V0 is available at Aetrix Electronics and suitable for smart home hubs, industrial I/O modules, and white goods control boards requiring stable component supply, long lifecycle support, and A-grade industrial temperature compliance.

Supply support for R5F104PFAFA#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 control applications-emphasizing energy efficiency, peripheral flexibility, and secure firmware update capability.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104PFAFA#V0?

The R5F104PFAFA#V0 operates at a maximum frequency of 32 MHz, delivering 44 DMIPS (Dhrystone MIPS) performance. This is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C. The RL78 CPU core's 3-stage pipeline and optimized instruction set enable this throughput while maintaining ultra-low power consumption (66 μA/MHz).

Does the R5F104PFAFA#V0 support background data flash rewriting (BGO), and what are the voltage requirements?

Yes, the R5F104PFAFA#V0 supports background data flash rewriting (BGO), allowing program execution from code flash while simultaneously erasing or programming data flash. Rewriting is guaranteed across the full VDD range of 1.8–5.5 V, with a typical endurance of 1,000,000 write cycles. This capability is essential for reliable firmware updates and non-volatile data logging in field-deployed R5F104PFAFA#V0 systems.

What package type and pin count does the R5F104PFAFA#V0 use, and what is its Renesas code?

The R5F104PFAFA#V0 uses a 100-pin LQFP package with 0.65 mm pitch and 14 × 20 mm body size, identified by Renesas code PLQP0100JC-A. The "FA" in the part number denotes LQFP (0.65 mm pitch), and "#V0" specifies tray packaging. This package provides robust thermal performance and standard surface-mount compatibility for industrial and appliance applications.

How many analog input channels and what ADC resolution does the R5F104PFAFA#V0 provide?

The R5F104PFAFA#V0 integrates a 10-bit successive-approximation ADC with up to 16 analog input channels (ANI0–ANI19, excluding reserved pins). It includes an internal 1.45 V reference voltage and an on-chip temperature sensor, enabling accurate sensor measurements without external references. Input voltage range is 0 to VDD, supporting direct connection to resistive sensors and conditioned analog signals.

What serial communication interfaces are available on the R5F104PFAFA#V0, and how are they configured?

The R5F104PFAFA#V0 provides 4 UART/LIN channels, 4 I²C channels, and 3–8 CSI (SPI-compatible) channels. All interfaces are implemented in hardware and configurable via peripheral I/O redirection registers (PIOR0/1), allowing dynamic assignment of functions like SDA/SCL or TX/RX to multiple pin groups-enabling flexible board layout and reuse of the same R5F104PFAFA#V0 across variants with differing peripheral routing needs.