I was considering designing an SRAM memory array. For my design to be useful in a certain system, I need to have several cells in a row (e.g. 1024, 2048). In textbooks I have seen examples of arrays with typically 8-cell words (1 byte per word). Is it possible to have as many as 1024 cells (128 bytes) in an SRAM word?
One problem that comes to mind immediately is that driving such a long word-line may require big drivers. But this would be design problem, not a fundamental one.
Could there be any other issue?