Invention Grant
- Patent Title: Low power general purpose input/output level shifting driver
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Application No.: US15257693Application Date: 2016-09-06
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Publication No.: US09941885B2Publication Date: 2018-04-10
- Inventor: Prashant Singh
- Applicant: STMicroelectronics International N.V.
- Applicant Address: NL Schiphol
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Schiphol
- Agency: Gardere Wynne Sewell LLP
- Main IPC: H03L5/00
- IPC: H03L5/00 ; H03K19/0185 ; H03K3/356 ; H03K19/00

Abstract:
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.
Public/Granted literature
- US20180069552A1 LOW POWER GENERAL PURPOSE INPUT/OUTPUT LEVEL SHIFTING DRIVER Public/Granted day:2018-03-08
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