Patent ID: 11923855
Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An integrated circuit, comprising:
a Schmitt trigger including:
a main input;
a main output;
a first inverter coupled to the main input;
a second inverter coupled between the first inverter and the main output;
a pass transistor coupled between the first inverter and the second inverter; end a pull-up transistor having a drain terminal coupled between the pass transistor and the second inverter;
a reference voltage generator configured to receive a supply voltage and to generate a high reference voltage based on the supply voltage; and
a control signal generator coupled between the main input and the first inverter and configured to generate a control signal having a value based on an input voltage at the main input, wherein a gate terminal of the pull-up transistor receives the control signal, wherein the control signal is equal to the high reference voltage when the input voltage is high, wherein the control signal is 0 V when the input voltage is low.