METHODS OF OPERATING MEMORY SYSTEMS WITH INPUT/OUTPUT EXPANDERS FOR MULTI-CHANNEL STATUS READS, AND ASSOCIATED SYSTEMS AND DEVICES

Methods of operating memory systems with input/output expanders for multi-channel status reads (and associated systems and devices) are disclosed herein. In one embodiment, a method comprises receiving, via a controller-side communication channel, a multi-channel status read command at a first interface of an input/output expander. The method further comprises, based at least in part on receiving the multi-channel status read command, (a) transmitting, via a second interface of the input/output expander, a status read command to logical units over each of two or more memory-side channels; (b) receiving, at the second interface, status read data from the logical units over each memory-side channel of the two or more memory-side channels; and (c) transmitting, via the first interface, the status read data onto the controller-side communication channel.