发明名称 |
ELECTROSTATIC DISCHARGE (ESD) PROTECTION CIRCUIT FOR MULTIPLE POWER DOMAIN INTEGRATED CIRCUIT |
摘要 |
<p>An integrated circuit (300/400) includes first and second power domains and a bank of input/output (I/O) cells (305/405) coupled to the first and second power domains. The bank of I/O cells (305/405) includes a first plurality of active clamps (374/445) for the first power domain and a second plurality of active clamps (384/425) for the second power domain wherein the first (374/445) and second (384/425) pluralities of active clamps overlap along the bank of I/O cells. According to one aspect each of the plurality of input/output cells (420, 440) has a bonding pad (421, 441) for receiving an output signal referenced to a respective first power domain, and at least one ESD protection element (425, 445) for a respective second power domain. According to another aspect, each of the plurality of input/output cells (420, 440) has a bonding pad (421, 441) for receiving a respective output signal and at least one ESD protection element for each of a first power domain and a second power domain.</p> |
申请公布号 |
WO2007053272(A2) |
申请公布日期 |
2007.05.10 |
申请号 |
WO2006US39647 |
申请日期 |
2006.10.10 |
申请人 |
FREESCALE SEMICONDUCTOR, INC.;KHAZHINSKY, MICHAEL G.;BAYER, MARTIN J.;MILLER, JAMES W.;PREBLE, BRYAN D. |
发明人 |
KHAZHINSKY, MICHAEL G.;BAYER, MARTIN J.;MILLER, JAMES W.;PREBLE, BRYAN D. |
分类号 |
H02H3/22 |
主分类号 |
H02H3/22 |
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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