Patent ID: 11923852
Assignee: ADVANCED MICRO DEVICES, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method of operating an integrated circuit (IC) comprising:
receiving a data signal at a receiver circuit operating with a first voltage supply;
driving a gate of a first p-type metal oxide semiconductor (PMOS) transistor with an enable signal to enable an overvoltage protection feature, the first PMOS transistor including a source coupled to a second voltage supply with a voltage level lower than that of the first voltage supply, and a drain connected to a central node;
driving a gate of a first n-type metal oxide semiconductor (NMOS) transistor with an output of the receiver circuit referenced to the first voltage supply, the first NMOS transistor including a drain connected to the central node and a source connected to an output terminal; and
applying the output of the receiver circuit to a drain of a second NMOS transistor, the second NMOS transistor including a gate connected to the central node, and a source connected to said output terminal for providing the data signal at said output terminal.