发明申请
US20150235704A1 Digital Control For Regulation Of Program Voltages For Non-Volatile Memory (NVM) Systems
有权
用于非易失性存储器(NVM)系统的程序电压调节的数字控制
- 专利标题: Digital Control For Regulation Of Program Voltages For Non-Volatile Memory (NVM) Systems
- 专利标题(中): 用于非易失性存储器(NVM)系统的程序电压调节的数字控制
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申请号: US14185454申请日: 2014-02-20
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公开(公告)号: US20150235704A1公开(公告)日: 2015-08-20
- 发明人: Jeffrey C. Cunningham , Ross S. Scouller , Christopher N. Hume
- 申请人: Jeffrey C. Cunningham , Ross S. Scouller , Christopher N. Hume
- 主分类号: G11C16/10
- IPC分类号: G11C16/10 ; G11C16/08
摘要:
Methods and systems are disclosed for digital control for regulation of program voltages for non-volatile memory (NVM) systems. The disclosed embodiments dynamically adjust program voltages based upon parameters associated with the cells to be programmed in order to account for IR (current-resistance) voltage drops that occur within program voltage distribution lines. Other voltage variations can also be accounted for with these dynamic adjustments, as well. The parameters for cells to be programmed can include, for example, cell address locations for the cells to be programmed, the number of cells to be programmed, and/or other desired parameters associated with the cells to be programmed. The disclosed embodiments use digital control values obtained from lookup tables based upon the cell parameters to adjust output voltages generated by voltage generation circuit blocks used to program the selected cells thereby tuning the program output voltage level to a predetermined desired level.
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