公开(公告)号：US20120002498A1

公开(公告)日：2012-01-05

申请号：US13171849

申请日：2011-06-29

申请人： Toru Matsushita ,  Ken Matsubara ,  Takashi Iwase ,  Hidenori Mitani ,  Jun Setogawa ,  Fumiko Yamada

发明人： Toru Matsushita ,  Ken Matsubara ,  Takashi Iwase ,  Hidenori Mitani ,  Jun Setogawa ,  Fumiko Yamada

IPC分类号： G11C5/14

CPC分类号： G11C5/145 ,  G11C16/30

摘要： Operational stability of the nonvolatile memory in plural power supply voltage modes set up in advance corresponding to the power supply voltage level is realized. A nonvolatile memory is configured with a memory array, a charge pump, a distributor for selecting an output voltage of the charge pump, and a sequencer for controlling operation of the charge pump and the distributor. The nonvolatile memory is also provided with an analyzer which notifies the sequencer of a power supply voltage mode selectively specified among plural power supply voltage modes set up in advance corresponding to power supply voltage levels, and which detects mismatch between the power supply voltage mode notified to the sequencer and an actually supplied power supply voltage and limits the operation of the charge pump and the distributor with the use of the sequencer, based on the detection result. Accordingly, operational stability of the nonvolatile memory is realized.

摘要翻译： 实现了与电源电压电平相对应地设置的多个电源电压模式中的非易失性存储器的操作稳定性。 非易失性存储器配置有存储器阵列，电荷泵，用于选择电荷泵的输出电压的分配器，以及用于控制电荷泵和分配器的操作的定序器。 非易失性存储器还设置有分析器，其向定序器通知在与电源电压电平相对应地设置的多个电源电压模式中选择性地指定的电源电压模式，并且检测通知给 定序器和实际提供的电源电压，并且基于检测结果限制使用定序器的电荷泵和分配器的操作。 因此，实现了非易失性存储器的操作稳定性。

公开(公告)号：US08441880B2

公开(公告)日：2013-05-14

申请号：US13171849

申请日：2011-06-29

申请人： Toru Matsushita ,  Ken Matsubara ,  Takashi Iwase ,  Hidenori Mitani ,  Jun Setogawa ,  Fumiko Yamada

发明人： Toru Matsushita ,  Ken Matsubara ,  Takashi Iwase ,  Hidenori Mitani ,  Jun Setogawa ,  Fumiko Yamada

IPC分类号： G11C5/14

CPC分类号： G11C5/145 ,  G11C16/30

摘要： Operational stability of the nonvolatile memory in plural power supply voltage modes set up in advance corresponding to the power supply voltage level is realized. A nonvolatile memory is configured with a memory array, a charge pump, a distributor for selecting an output voltage of the charge pump, and a sequencer for controlling operation of the charge pump and the distributor. The nonvolatile memory is also provided with an analyzer which notifies the sequencer of a power supply voltage mode selectively specified among plural power supply voltage modes set up in advance corresponding to power supply voltage levels, and which detects mismatch between the power supply voltage mode notified to the sequencer and an actually supplied power supply voltage and limits the operation of the charge pump and the distributor with the use of the sequencer, based on the detection result. An operational stability of the nonvolatile memory is realized.

摘要翻译： 实现了与电源电压电平相对应地设置的多个电源电压模式中的非易失性存储器的操作稳定性。 非易失性存储器配置有存储器阵列，电荷泵，用于选择电荷泵的输出电压的分配器，以及用于控制电荷泵和分配器的操作的定序器。 非易失性存储器还设置有分析器，其向定序器通知在与电源电压电平相对应地设置的多个电源电压模式中选择性地指定的电源电压模式，并且检测通知给 定序器和实际提供的电源电压，并且基于检测结果限制使用定序器的电荷泵和分配器的操作。 实现了非易失性存储器的操作稳定性。