发明名称 |
Programmable, staged, bus hold and weak pull-up for bi-directional I/O |
摘要 |
The present invention encompasses a bus hold and weak pull-up circuit. A resistor having a first node and a second node is coupled to a bi-directional I/O pin at the first node. The weak pull-up circuit is directly coupled to the resistor at the first node. The bus hold circuit is coupled to the resistor at the second node.
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申请公布号 |
US6731137(B1) |
申请公布日期 |
2004.05.04 |
申请号 |
US20020131976 |
申请日期 |
2002.04.24 |
申请人 |
ALTERA CORPORATION |
发明人 |
RANGAN GOPINATH;SUNG CHIAKANG;WANG XIAOBAO;PAN PHILIP;CHONG YAN;KIM IN WHAN;NGUYEN KHAI;WANG BONNIE;CHANG TZUNG-CHIN;HUANG JOSEPH |
分类号 |
H03K3/356;H03K5/08;H03K19/0175;H04L25/02;(IPC1-7):H03K3/356;H03K19/017 |
主分类号 |
H03K3/356 |
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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