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r5f102aaa

Updated: 2026-08-03

Overview

The R5F102AAA is a microcontroller unit (MCU) developed by Renesas Electronics, part of their RL78 family. It is designed for embedded systems requiring low power consumption and high performance. The MCU is widely used in automotive and industrial applications due to its reliability and integrated peripherals. The R5F102AAA features a 16-bit CPU core, flash memory, and various communication interfaces such as UART, SPI, and I2C. Its compact design and low power consumption make it suitable for battery-operated devices and energy-efficient systems.

Key Features

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The R5F102AAA offers several key features that make it a popular choice for embedded systems. These include a low-power operating mode, high-speed processing, and a wide operating voltage range. The MCU also integrates timers, ADCs, and PWM controllers, reducing the need for external components. Additionally, the R5F102AAA is designed to meet stringent automotive standards, ensuring reliability in harsh environments. Its flash memory allows for easy firmware updates, making it adaptable to evolving system requirements.

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Application Areas

The R5F102AAA is commonly used in automotive systems such as engine control units, body control modules, and infotainment systems. Its robust design and low power consumption also make it suitable for industrial automation, including motor control and sensor interfaces. In consumer electronics, the MCU is found in smart home devices, wearable technology, and IoT applications. Its versatility and performance make it a preferred choice for developers seeking a balance between cost and functionality.

Precautions

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When working with the R5F102AAA, it is important to follow proper handling procedures to avoid electrostatic discharge (ESD) damage. Ensure that the MCU is stored in anti-static packaging and handled with grounded equipment. Compatibility with existing systems should be verified before integration, as pin configurations and voltage levels may vary. Additionally, sourcing from authorized distributors is recommended to avoid counterfeit components.

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B2B Procurement Guide

For B2B buyers, the R5F102AAA is available through authorized distributors and direct sales channels. Bulk purchases typically offer cost savings, with prices ranging approximately $2-$5 per unit, depending on volume. When selecting a supplier, verify their certification and track record with Renesas products. Lead times can vary, so it is advisable to plan procurement in advance, especially for large-scale projects. Custom firmware development support may also be available from certain vendors.

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