发明名称 |
SEMICONDUCTOR DEVICE INCLUDING PLURAL CHIPS STACKED TO EACH OTHER |
摘要 |
A method for accessing a plurality of DRAM devices each having a plurality of banks, includes determining an operating mode for the plurality of DRAM devices, providing a chip selection address and a bank address with an active command to activate a first bank in a first one of the plurality of DRAM devices and, while the first bank in the first one of the plurality of DRAM devices is activated, one or more first banks in remaining DRAM devices of the plurality of DRAM devices are: not activated if the operating mode is determined to be a logical rank address mode, and possibly activated if the operating mode is determined to be a physical rank address mode, and subsequently providing at least a bank address with a column command to access the first bank in the first one of the plurality of DRAM devices. |
申请公布号 |
US2014321228(A1) |
申请公布日期 |
2014.10.30 |
申请号 |
US201414331436 |
申请日期 |
2014.07.15 |
申请人 |
PS4 LUXCO S.A.R.L. |
发明人 |
SATO Homare |
分类号 |
G11C11/408;H01L23/48 |
主分类号 |
G11C11/408 |
代理机构 |
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代理人 |
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主权项 |
1. A method for accessing a plurality of DRAM devices each having a plurality of banks, the plurality of DRAM devices being interconnected to receive common address and command signals, the method comprising:
determining an operating mode for the plurality of DRAM devices; providing a chip selection address and a bank address with an active command to activate a first bank in a first one of the plurality of DRAM devices and, while the first bank in the first one of the plurality of DRAM devices is activated, one or more first banks in remaining DRAM devices of the plurality of DRAM devices are: not activated if the operating mode is determined to be a logical rank address mode; and possibly activated if the operating mode is determined to be a physical rank address mode; and subsequently providing at least a bank address with a column command to access the first bank in the first one of the plurality of DRAM devices. |
地址 |
LUXEMBOURG LU |