I/o modulation scheme for ultra-high data throughput with massive nand parallelism

Abstract

Systems and methods disclosed herein provide a modulation scheme that enables memory dies of a memory stack to occupy a shared data line in parallel, which increases data throughput within the memory stack. The systems and methods disclosed herein modulate data input/output (I/O) signals to convert the data I/O signals from a first domain to a second domain. Each data I/O signal corresponds to a memory die. The data I/O signals are separated onto channels that are non-overlapping in the second domain and are supplied simultaneously to a data line. By separating the data I/O signal onto non-overlapping channels, the plurality of memory dies can be operated in parallel at approximately the same time. In an illustrative example, the first domain is the time domain and the second domain is the frequency domain, which the channels being separate, non-overlapping frequency bands.