Invention Grant
- Patent Title: Semiconductor device chip selection
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Application No.: US14833394Application Date: 2015-08-24
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Publication No.: US09911480B2Publication Date: 2018-03-06
- Inventor: Hideyuki Yoko
- Applicant: PS4 Luxco S.a.r.l.
- Applicant Address: LU Luxembourg
- Assignee: Longitude Semiconductor S.a.r.l
- Current Assignee: Longitude Semiconductor S.a.r.l
- Current Assignee Address: LU Luxembourg
- Agency: Kunzler, PC
- Priority: JP2011-016003 20110128
- Main IPC: G11C8/12
- IPC: G11C8/12 ; G11C5/04 ; G11C11/408 ; G11C5/06 ; G11C11/4072

Abstract:
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 includes receiving a first chip selection address and a first bank address with an active command to activate a first bank in a first DRAM device of the plurality of DRAM devices. A first bank active flag is set, corresponding to the first bank address, in the first DRAM device of the plurality of DRAM devices. A second bank address with a column command is received. A second bank is accessed in a second DRAM device of the plurality of DRAM devices having a set bank active flag corresponding to the second bank address.
Public/Granted literature
- US20150364179A1 SEMICONDUCTOR DEVICE AND INFORMATION PROCESSING SYSTEM HAVING THE SAME Public/Granted day:2015-12-17
Information query