# RSL15 Flash Variants

RSL15 flash variants include devices with two different flash memory configurations. In both cases, the RSL15 flash is divided into two flash arrays that can both be read from with equal efficiency for any application use cases (including both application code and application data). These flash arrays have the following characteristics:

- The flash code array is organized into 2048-byte sectors, which make it ideal for storing larger items or items that are static.

- The flash data array is organized into 256-byte sectors, which make it ideal for storing smaller items or items that may be updated.

For more information about this topic, see: