发明名称 |
Method and an apparatus to actively sink current in an integrated circuit with a floating I/O supply voltage |
摘要 |
Described is an apparatus and a method for pulling an integrated circuit I/O pad to a known state and providing a current path between the pad and a source of potential during periods when an I/O voltage is likely to be floating. At least one I/O transistor coupled between the I/O pad and a source of potential is provided. Also provided is a combinatorial circuit connected to the I/O transistor to turn on the I/O transistor during periods that the I/O voltage is likely to be floating.
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申请公布号 |
US6624682(B1) |
申请公布日期 |
2003.09.23 |
申请号 |
US20020267563 |
申请日期 |
2002.10.09 |
申请人 |
ANALOG DEVICES, INC. |
发明人 |
BOUTAUD FREDERIC;FITZPATRICK SEAN M.;KRIVACEK PAUL D. |
分类号 |
H03K5/08;(IPC1-7):H03K5/08 |
主分类号 |
H03K5/08 |
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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