SEMICONDUCTOR DEVICE PREVENTING MULTIWORD STATE

摘要

To prevent a multiword state in which a plurality of word lines are active in a same memory bank, the semiconductor device includes a plurality of memory chips commonly receiving an access command, in which each of the plurality of memory chips are provided with a control circuit ignoring an new access command when the bank address information in the new access command is the same as the bank address information for the specified memory bank even if the new access command received before reading/writing data from/to the specified memory bank of the selected memory chip is completed contains chip selection information selecting another memory chip.

主权项

1. A semiconductor device comprising: a plurality of memory chips commonly receiving an access command containing chip selection information and bank address information, wherein
each of the plurality of memory chips includes a control circuit reading/writing data from/to a memory bank specified by the bank address information when the chip selection information selects the memory chip itself, and the control circuit in each of the other memory chips than the memory chip selected by the chip selection information ignores an new access command when the bank address information in the new access command is the same as the bank address information for the specified memory bank even if the new access command received before completing reading/writing data from/to the specified memory bank of the selected memory chip contains chip selection information selecting the other memory chip.