ff_mem_alloc<br>ff_mem_free</td><td>_USE_LFN == 3</td></tr>
</table>
</div>

<div class="para doc" id="limits">
<h3>Limits</h3>
<ul>
<li>File system type: FAT, FAT32(r0.0) and exFAT(r1.0).</li>
<li>Number of open files: Unlimited. (depends on available memory)</li>
<li>Number of volumes: Upto 10.</li>
<li>Volume size: Upto 2 TiB at 512 bytes/sector.</li>
<li>File size: Upto 4 GiB - 1 on FAT volume and virtually unlimited on exFAT volume.</li>
<li>Cluster size: Upto 128 sectors on FAT volume and upto 16 MiB 