9. Block RAM

UltraScale Architecture PCB Design User Guide (UG583)

Document ID
UG583
Release Date
2023-11-14
Revision
1.27 English

Typically, as device densities get larger, the amount of block RAM also keeps increasing. However, in certain UltraScale+ devices, the amount of block RAM might be lesser than in devices of smaller density. This is due to the addition of UltraRAM resources to UltraScale+ FPGAs and MPSoCs. With UltraRAM, there is an increase in overall bit count compared to UltraScale FPGAs but with fewer block RAM resources available. AMD advises coding the memory to use features present in both block RAM and UltraRAM, and the tools target UltraRAM as applicable.