- 专利标题: Low power general purpose input/output level shifting driver
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申请号: US15257693申请日: 2016-09-06
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公开(公告)号: US09941885B2公开(公告)日: 2018-04-10
- 发明人: Prashant Singh
- 申请人: STMicroelectronics International N.V.
- 申请人地址: NL Schiphol
- 专利权人: STMicroelectronics International N.V.
- 当前专利权人: STMicroelectronics International N.V.
- 当前专利权人地址: NL Schiphol
- 代理机构: Gardere Wynne Sewell LLP
- 主分类号: H03L5/00
- IPC分类号: H03L5/00 ; H03K19/0185 ; H03K3/356 ; H03K19/00
摘要:
Disclosed herein is an low power output stage coupled between a supply node and a ground node, configured to drive an output, and controlled by first, second, and third control nodes. A current sinking circuit controlled by an input signal and configured to sink current from the first and second control nodes when the input signal transitions to a first logic level, thereby resulting in decoupling of the output stage from the ground node and sourcing of current to the output by the output stage. When the input signal transitions to a second logic level different than the first logic level, the current sinking circuit sinks current from a third control node, thereby resulting in decoupling of the output stage from the supply node and sinking of current from the output by the output stage.
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