• R5F1026AASP#V0 LSSOP-20


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Overview of R5F1026AASP#V0

The R5F1026AASP#V0 is a Renesas microcontroller unit featuring a high-performance 16-bit CPU core, ideal for various embedded applications. It offers a rich set of peripherals, including timers, serial communication interfaces, and analog-to-digital converters, making it suitable for a wide range of microcontroller projects.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VSS: Ground pin for supply voltage reference
  • VDD: Positive power supply pin
  • TXD: Transmitter data pin for serial communication
  • RXD: Receiver data pin for serial communication
  • AN0-AN7: Analog input pins
  • PWM1-PWM4: Pulse-Width Modulation output pins
  • SCL: Clock pin for I2C communication
  • SDA: Data pin for I2C communication
  • INT0-INT3: External interrupt input pins
  • RESET: Reset pin for the microcontroller

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the R5F1026AASP#V0 microcontroller for visual representation.

Key Features

  • High-Performance 16-bit CPU Core: The R5F1026AASP#V0 features a powerful 16-bit CPU core for efficient processing.
  • Rich Peripheral Set: With a variety of timers, communication interfaces, and ADCs, this microcontroller offers versatility for different applications.
  • Low-Power Modes: Includes low-power modes for energy-efficient operation in battery-powered devices.
  • Enhanced Safety Features: Provides built-in safety features for reliable operation in critical systems.
  • Wide Operating Voltage Range: Operates within a wide voltage range, allowing flexibility in power supply configurations.

Note: For detailed technical specifications, refer to the R5F1026AASP#V0 datasheet.


  • Embedded Systems: Ideal for use in various embedded system applications including IoT devices, consumer electronics, and industrial control systems.
  • Automotive Electronics: Suitable for automotive applications requiring robust performance and connectivity.
  • Smart Devices: Used in smart devices for processing and control functionalities.


The R5F1026AASP#V0 microcontroller unit offers a high-performance computing platform with a range of integrated peripherals to support diverse applications. It enables efficient data processing, communication, and control functions.

Usage Guide

  • Power Supply: Connect VDD (Pin 2) to the positive power supply and VSS (Pin 1) to the ground.
  • Communication Setup: Use TXD and RXD pins for serial communication and SDA/SCL pins for I2C communication.
  • Peripheral Usage: Configure and utilize the various peripherals such as PWM outputs, analog inputs, and interrupts as required by your application.

Frequently Asked Questions

Q: Can the R5F1026AASP#V0 interface with external memory devices?
A: Yes, the R5F1026AASP#V0 supports external memory interface for expanding data storage capacity.

Q: Is the R5F1026AASP#V0 suitable for real-time control applications?
A: Absolutely, the R5F1026AASP#V0's high-performance CPU core and peripheral set make it well-suited for real-time control tasks.


For similar functionalities, consider these alternatives to the R5F1026AASP#V0:

  • R5F10269ASP#V0: Another variant of the Renesas microcontroller with similar features and performance.
  • STM32F103C8T6: This STM32 microcontroller offers comparable capabilities to the R5F1026AASP#V0 with a different manufacturer.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category 16-bit Microcontrollers - MCU RoHS Details
Series RL78/G12 Mounting Style SMD/SMT
Package / Case LSSOP-20 Core RL78
Program Memory Size 16 kB Data Bus Width 16 bit
ADC Resolution 8 bit, 10 bit Maximum Clock Frequency 24 MHz
Number of I/Os 18 I/O Data RAM Size 1.5 kB
Supply Voltage - Min 1.8 V Supply Voltage - Max 5.5 V
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Analog Supply Voltage 1.8 V to 5.5 V Brand Renesas Electronics
Data RAM Type RAM Height 1.45 mm
Interface Type CSI, I2C, UART Length 6.5 mm
Moisture Sensitive Yes Number of ADC Channels 11 Channel
Product MCU Product Type 16-bit Microcontrollers - MCU
Program Memory Type Flash Factory Pack Quantity 80
Subcategory Microcontrollers - MCU Watchdog Timers Watchdog Timer
Width 4.4 mm

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