R5F21104

series introduction

# Introduction to the R5F21104 Product Series

## Overview
The R5F21104 product series is a remarkable line of microcontrollers developed by Renesas Electronics, a leading provider of advanced semiconductor solutions. These microcontrollers are engineered to offer high - performance, reliability, and flexibility, making them suitable for a wide range of applications across various industries.

## Key Features

### High - Performance CPU Core
The R5F21104 series is built around a powerful CPU core. It typically features a high - clock - speed operation, which enables rapid data processing and execution of complex algorithms. This high - performance core allows for efficient handling of multiple tasks simultaneously, making it ideal for applications that require real - time processing, such as industrial automation and automotive control systems.

### Memory Configuration
- **Flash Memory**: These microcontrollers come equipped with a substantial amount of on - chip flash memory. The flash memory provides non - volatile storage for the program code, allowing for easy reprogramming and updates. This is particularly useful in applications where firmware upgrades are necessary to add new features or improve performance.
- **RAM**: A sufficient amount of random - access memory (RAM) is available to support the execution of programs and the storage of temporary data. The large RAM capacity ensures smooth operation, even when dealing with data - intensive tasks, such as data logging and signal processing.

### Peripheral Integration
- **Communication Interfaces**: The R5F21104 series offers a rich set of communication interfaces, including UART (Universal Asynchronous Receiver - Transmitter), SPI (Serial Peripheral Interface), and I²C (Inter - Integrated Circuit). These interfaces enable seamless communication with other devices, such as sensors, actuators, and external memory modules. For example, in a smart home application, the microcontroller can use these interfaces to communicate with various sensors and control devices over a network.
- **Timers and Counters**: Multiple timers and counters are integrated into the microcontrollers. These can be used for a variety of purposes, such as generating precise timing signals, measuring time intervals, and controlling the speed of motors. In a motor control application, the timers can be used to generate PWM (Pulse Width Modulation) signals to control the motor's speed and direction.
- **Analog - to - Digital Converters (ADCs)**: High - resolution ADCs are included in the series. These ADCs can convert analog signals from sensors, such as temperature sensors and pressure sensors, into digital values that can be processed by the microcontroller. This allows for accurate measurement and monitoring of physical quantities in various applications.

### Low - Power Operation
The R5F21104 microcontrollers are designed with power - saving features in mind. They offer multiple power - saving modes, such as sleep mode and standby mode, which can significantly reduce power consumption when the device is not actively performing tasks. This is crucial in battery - powered applications, such as portable medical devices and wireless sensor nodes, where long battery life is essential.

## Applications

### Industrial Automation
In industrial automation systems, the R5F21104 series can be used for controlling and monitoring various processes. It can interface with sensors to collect data on temperature, pressure, and flow rate, and then use this data to control actuators, such as valves and motors. The high - performance CPU and rich set of peripherals allow for precise control and real - time monitoring, ensuring the efficient operation of industrial equipment.

### Automotive Electronics
Automotive applications require high - reliability and high - performance microcontrollers. The R5F21104 series can be used in automotive control units, such as engine control units (ECUs), transmission control units (TCUs), and body control modules (BCMs). The microcontrollers can handle the complex algorithms required for

Images for reference

32-LQFP

Datasheets

• R8C/10 Group Datasheet

Partlist