Invention Grant
US08194488B2 Auto-refresh operation control circuit for reducing current consumption of semiconductor memory apparatus
失效
用于减少半导体存储装置的电流消耗的自动刷新操作控制电路
- Patent Title: Auto-refresh operation control circuit for reducing current consumption of semiconductor memory apparatus
- Patent Title (中): 用于减少半导体存储装置的电流消耗的自动刷新操作控制电路
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Application No.: US12342177Application Date: 2008-12-23
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Publication No.: US08194488B2Publication Date: 2012-06-05
- Inventor: Hee Hyun Han
- Applicant: Hee Hyun Han
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Ladas & Parry LLP
- Priority: KR10-2008-0043617 20080509
- Main IPC: G11C7/00
- IPC: G11C7/00
Abstract:
An auto-refresh operation control circuit for a semiconductor memory apparatus is activated according to a bank active signal for executing a refresh operation and terminates the refresh operation by receiving a precharge signal. The auto-refresh operation control circuit is configured to prevent an over-driving operation during an auto-refresh operation and to delay the enablement of the precharge signal. The auto-refresh operation control circuit also delays the enablement of the precharge signal during the auto-refresh operation more than a delay of the precharge signal during a self-refresh operation.
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