发明名称 |
Fast bi-directional tristateable line driver |
摘要 |
A driver to drive a bus with a pullup and a pulldown transistor according to a data signal during a drive phase and to charge or discharge the bus to intermediate voltage levels during a precondition phase using the pullup and pulldown transistors, the driver comprising a buffer and latch to latch the bus voltage at the end of a drive phase; a precondition circuit responsive to the latch to switch ON a pullup transistor at the beginning of a precondition phase when the bus voltage was LOW in the previous drive phase so as to charge the bus voltage to a first voltage less than a supply voltage, and to switch ON a pulldown transistor at the beginning of the precondition phase when the bus voltage was HIGH in the previous drive phase so as to discharge the bus voltage to a second voltage above ground.
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申请公布号 |
US6175253(B1) |
申请公布日期 |
2001.01.16 |
申请号 |
US19980052883 |
申请日期 |
1998.03.31 |
申请人 |
INTEL CORPORATION |
发明人 |
MAIYURAN SUBRAMANIAM;DABRAL SANJAY;DO THU M.;SIERS SCOTT E.;MOHEBBI MEHRDAD |
分类号 |
H03K19/0185;H03K19/094;(IPC1-7):H03K19/02;H03K19/00;H03K19/096 |
主分类号 |
H03K19/0185 |
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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