发明授权
- 专利标题： E-fuse read circuit with dual comparators
- 专利标题（中）： 电子熔丝读取电路与双比较器
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申请号： US12051806申请日： 2008-03-19
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公开(公告)号： US07936582B1公开(公告)日： 2011-05-03
- 发明人: Shidong Zhou , Gubo Huang
- 申请人： Shidong Zhou , Gubo Huang
- 申请人地址： US CA San Jose
- 专利权人： Xilinx, Inc.
- 当前专利权人： Xilinx, Inc.
- 当前专利权人地址： US CA San Jose
- 代理商 Scott Hewlett; LeRoy D. Maunu
- 主分类号： G11C17/00
- IPC分类号： G11C17/00 ; G11C7/00
摘要：
An integrated circuit has an E-fuse sense circuit configured to produce a READ voltage according to a fuse resistance of an E-fuse during a READ operation. The integrated circuit also has a reference sense circuit configured to produce a reference voltage according to a reference resistance of an on-chip reference resistor during the READ operation. The reference sense circuit replicates the E-fuse sense circuit. The E-fuse sense circuit and the reference sense circuit are coupled to a comparator that produces a bit value according to a difference between the READ voltage and the reference voltage.
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