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Data flash driver software (standard version) for the R8C/2x, R8C/1x, and M16C/Tiny Series


M3S-DATFA (hereafter abbreviated DATFA) is a block type device driver for storing data in the data flash that is incorporated in the R8C/2x, R8C/1x, and M16C/Tiny Series microcontrollers.

Data can be updated or read out simply by calling the user API functions of the data flash driver.
The data flash driver may be used to easily build a data flash based data management system.


The data flash driver for the R8C/2x, R8C/1x, and M16C/Tiny Series can be selected from the following depending on your functional requirements.

  • M3S-DATFA (standard version): Can store data that comes in multiple different data sizes
  • M3S-DATFB (small version): Specialized for increasing the number of times data can be updated


Target devices

Family Series Group
R8C R8C/2x R8C/21, R8C/23, R8C/25, R8C/27, R8C/29, R8C/2B, R8C/2D, R8C/2F, R8C/2L
R8C/1x R8C/19, R8C/1B
M16C M16C/Tiny M16C/26M16C/26AM16C/28M16C/29


Version Information

Latest Ver.: V.1.30 Release 01
Released: Jul 15, 2011

Related Resources

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