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

Claim 3:
4. 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; and
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 supply voltage selector configured to provide either a low supply voltage or a high supply voltage as the supply voltage based on a mode selection value.