"sdram overflowed" question

#1

Hello,
I have nine 16b sdram load objects in a patch (only these 9 objects, nothing else, just for testing) each of them with a size of 524288. And the console shows up an error that the sdram is overflowed by 1048576 bytes.
I don't understand why this error since the total sdram of my objects is 9 X 524288 = 4718592, 4.7Mo. Axoloti has 8Mo of SDRAM so I am under the limit. Any idea?

#2

16b = 2 bytes, so about right

#3

Thanks! (bit/byte I'm always confused :()