发明名称 |
Method and devices for storing a security key using programmable fuses |
摘要 |
In embodiment of the invention, a programmable logic device includes configuration memory adapted to be programmed with configuration data and a plurality of programmable fuses adapted to store a security key for use with configuration data. The security key includes a plurality of data bit values, wherein each data bit value of the security key is associated with a subset of a least three fuses each storing a bit. Each of a plurality of decoders is adapted to retrieve a data bit value of the security key by providing the bit value stored by a majority of the fuses of the associated subset as the data bit value of the security key.
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申请公布号 |
US7834652(B1) |
申请公布日期 |
2010.11.16 |
申请号 |
US20100709685 |
申请日期 |
2010.02.22 |
申请人 |
LATTICE SEMICONDUCTOR CORPORATION |
发明人 |
TANG HOWARD;SHEN JU;KOW SAN-TA |
分类号 |
H03K19/00 |
主分类号 |
H03K19/00 |
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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