Renesas R5F104LCAFP#V0

Overview

R5F104LCAFP#V0 from Renesas is a 64-pin LQFP-0.65 mm pitch, 512 KB flash, 48 KB RAM RL78/G14 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 44 DMIPS at 32 MHz with true low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial control panels requiring deterministic real-time response and extended battery life.

For engineers reviewing the R5F104LCAFP#V0 datasheet, R5F104LCAFP#V0 pinout, R5F104LCAFP#V0 application, or R5F104LCAFP#V0 equivalent, key selection considerations include its 64-pin LQFP package, 512 KB code flash with 1 KB block erase, integrated RTC with calendar/alarm, 20-channel 10-bit ADC, and dual UART/LIN support for sensor aggregation and HMI communication.

Technical Context

The R5F104LCAFP#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), and includes multiply/divide/accumulate instructions. It integrates a Data Transfer Controller (DTC) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.

Its power management includes HALT, STOP, and SNOOZE modes, on-chip POR and 14-level LVD, and a high-accuracy ±1.0% on-chip oscillator (1–64 MHz). The device supports background operation (BGO) for data flash rewriting while executing program code, with 1,000,000 write cycles rated at VDD = 1.8–5.5 V.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F104LCAFP#V0, R5F104LLAFP#V0 adds extended temperature tolerance without changing peripherals or pinout, while R5F104LKAFP#V0 reduces memory capacity to lower unit cost-both preserve identical I/O, timer, and communication functionality for seamless migration.

Availability

R5F104LCAFP#V0 is available at Aetrix Electronics and suitable for industrial control panels, smart energy meters, home appliance mainboards, and factory I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F104LCAFP#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial real-time control applications requiring high integration and long-term reliability.

FAQ

What is the maximum operating frequency and corresponding performance of the R5F104LCAFP#V0?

The R5F104LCAFP#V0 operates up to 32 MHz with a high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs at 32 MHz, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation. This dual-speed capability allows the R5F104LCAFP#V0 to balance performance and energy efficiency across diverse operational states.

Does the R5F104LCAFP#V0 support in-circuit debugging and secure firmware updates?

Yes, the R5F104LCAFP#V0 includes full on-chip debug functionality via the on-chip debug interface and supports secure firmware updates through its flash shield window and block erase prohibition features. These mechanisms prevent unauthorized readout or modification of protected code sections, ensuring intellectual property protection during development and field deployment of the R5F104LCAFP#V0.

How many analog input channels and what ADC resolution does the R5F104LCAFP#V0 provide?

The R5F104LCAFP#V0 integrates a 10-bit successive approximation ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated AVREFP/AVREFM pins for precision reference. It also includes an internal 1.45 V reference voltage and an on-chip temperature sensor, enabling calibrated environmental sensing without external components in the R5F104LCAFP#V0 design.

Can the R5F104LCAFP#V0 operate from a single 1.8 V supply, and what low-power modes are available?

Yes, the R5F104LCAFP#V0 supports operation from 1.6 V to 5.5 V, making it fully functional at 1.8 V. It offers HALT, STOP, and SNOOZE low-power modes; notably, STOP mode consumes only 0.60 μA while maintaining RTC and LVD operation - a critical capability for battery-powered applications using the R5F104LCAFP#V0.

What serial communication interfaces are integrated into the R5F104LCAFP#V0?

The R5F104LCAFP#V0 integrates three UART/LIN channels, four to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. All interfaces support peripheral I/O redirection and can be linked via the Event Link Controller (ELC) for autonomous operation - enhancing real-time responsiveness and reducing CPU load in the R5F104LCAFP#V0 system.