Device selection schemes in multi chip package NAND flash memory system

摘要

Systems and methods are provided for perform device selection in multi-chip package NAND flash memory systems. In some embodiments, the memory controller performs device selection by command. In other embodiments, the memory controller performs device selection by input address.

主权项

1. A memory system comprising:
a memory controller; a plurality of memory devices connected to the controller via a common bus with a multi-drop connection; wherein the memory controller performs device selection by input address;
each memory device comprising:a register containing a device identifier;a device identifier comparator that compares selected bits of a received input address to contents of the register to determine if there is a match, and wherein a given device is selected if the device identifier comparator of the given device determines there is a match; wherein each memory device further comprises a burst data controller that causes the memory device to be selected:
when the device identifier comparator determines there is a match;while a command input is in progress; andwhile an address input is in progress.