A memory package includes a multi-level package substrate, a first memory chip, a second memory chip, a first band pass filter and a second band pass filter. The multi-level package substrate includes a plurality of wiring layers and a plurality of insulating layers alternately stacked on one another. The first memory chip is on the multi-level package substrate, and includes a plurality of first memory cells and a first receiver. The second memory chip is on the first memory chip, and includes a plurality of second memory cells and a second receiver. The first band pass filter is in the multi-level package substrate, is connected to the first receiver, and passes a first data signal within a first frequency band. The second band pass filter is in the multi-level package substrate, is connected to the second receiver, and passes a second data signal within the first frequency band.