公开(公告)号：US20090003116A1

公开(公告)日：2009-01-01

申请号：US11771582

申请日：2007-06-29

申请人： Bharat CHAUHAN ,  Gerald BARKLEY ,  Kerry D. TEDROW ,  Balaji SIVAKUMAR

发明人： Bharat CHAUHAN ,  Gerald BARKLEY ,  Kerry D. TEDROW ,  Balaji SIVAKUMAR

IPC分类号： G11C5/14

CPC分类号： G11C5/14 ,  G11C16/30

摘要： Disclosed is a method for refreshing voltages in a non volatile memory during a standby mode. The method comprises generating a first node voltage and a second node voltage through a resistance ladder, storing the voltages in a pair of capacitors, comparing the voltages by a comparator, generating an output electrical signal by the comparator upon comparing the voltages, latching the output electrical signal by a flip flop, generating an electrical refresh pulse by a refresh pulse generator upon receiving the output electrical signal from the flip flop, the electrical refresh pulse being supplied to a refresh node of a plurality of refresh nodes in the non volatile memory and generating an electrical sample pulse by a sample pulse generator, the electrical sample pulse along with the electrical refresh pulse setting the flip flop, thereby causing the flip flop to latch a new output electrical signal.

摘要翻译： 公开了一种在待机模式期间刷新非易失性存储器中的电压的方法。 该方法包括通过电阻梯形生成第一节点电压和第二节点电压，将电压存储在一对电容器中，通过比较器比较电压，在比较电压时产生比较器的输出电信号，锁存输出 通过触发器产生电信号，当从触发器接收到输出电信号时，通过刷新脉冲发生器产生电刷新脉冲，电刷新脉冲被提供给非易失性存储器中的多个刷新节点的刷新节点， 通过采样脉冲发生器产生电采样脉冲，电采样脉冲与电刷新脉冲一起设置触发器，从而使触发器锁存新的输出电信号。