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R8C/25

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16-bit Microcontrollers with R8C CPU Core (Non Promotion)

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Overview

The R8C/25 Group is supported only for customers who have already adopted these products. The RL78/G14 Group is recommended for new designs.

These MCUs are fabricated using a high-performance silicon gate CMOS process, embedding the R8C/Tiny Series CPU core, and are packaged in a 52-pin molded-plastic LQFP or a 64-pin molded-plastic FLGA. It implements sophisticated instructions for a high level of instruction efficiency. With 1Mb of address space, they are capable of executing instructions at high speed. Furthermore, the R8C/25 Group has on-chip data flash (1KB x 2 blocks). The difference between the R8C/24 Group and R8C/25 Group is only the presence or absence of data flash. Their peripheral functions are the same.

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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Resources

Support Communities

  1. R8C/25 Starter Kit

    Anybody having  a sample code for R8C/25 Starter kit that includes Sample Code for DATA FLASH for R8C/25 . If so kindly share.Thanks and Regards.

    Aug 23, 2011
  2. R8C/25 bootloader example

    Hi,     Does anyone have any documentation about how to set up a bootloader on an R8C/25.  I need to write a bootloader that will use I2C to communicate. Thanks,

    May 7, 2009
  3. Sofware Reset for r8C/25 - R5F21256

    Hi, Is there any software reset example for R5F21256? Thanks.

    Feb 10, 2023
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FAQs

  1. (R8C) Are there any hardware precautions for accurate A/D conversion?

    ... analog input pin so that it is low enough. (Refer to the hardware manual for the calculation method.) Moreover, in order to suppress the influence of the input current at the time of A/D conversion, please add a capacitor to the analog input pin. Example (R8C/25)

    Jun 19, 2006
  2. Do I need to rewrite the boot ROM area using MI6C Flash Starter?

    Rewriting of the boot ROM area is unnecessary. This is because M3A-0806 performs programming using the standard boot program which was programmed into the boot ROM area when it was shipped. (#104963)

    Mar 1, 2005
  3. Please tell me how to set the option function register in detail.

    There are three methods for setting the option function select register using the C complier package M3T-NC30WA: Using the load module converter (lmc30 -R8C) -OFSREGX (or -PROTECTX) option Using assembler directive command .OFSREG (or .PROTECT) By assembly programming The load module converter option and directive command depend on the ...

    Mar 13, 2009
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