发明名称 |
Semiconductor integrated circuit device for display controller |
摘要 |
The present invention is directed to repair a defective bit included in a memory in a semiconductor integrated circuit device for a display controller. The semiconductor integrated circuit device has a display memory capable of storing display data in a storage area, and a repair circuit capable of repairing a defect by replacing an area including a defect in the display memory with a spare storage area provided on the outside of a regular storage area for storing the display data. The device further includes a selector circuit provided on a transmission path of output data from the display memory and selectively replacing output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit. By selectively replacing the output data from the regular storage area with output data from the spare storage area in accordance with a control signal from the repair circuit, a defective bit is repaired.
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申请公布号 |
US7979755(B2) |
申请公布日期 |
2011.07.12 |
申请号 |
US20070869976 |
申请日期 |
2007.10.10 |
申请人 |
RENESAS ELECTRONICS CORPORATION |
发明人 |
IIZUKA MASARU;TSUJI SOSUKE |
分类号 |
G11C29/00;G06F12/02;G09G5/39 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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