公开(公告)号：US10541013B1

公开(公告)日：2020-01-21

申请号：US16189185

申请日：2018-11-13

Applicant: Advanced Micro Devices, Inc.

Inventor： Russell J. Schreiber ,  Tawfik Ahmed ,  Ilango Jeyasubramanian

IPC: G11C8/18 ,  G11C8/08 ,  G11C11/408 ,  G11C11/418

Abstract: A word line driver circuit receives a word line input signal and supplies a word line driver output signal to a worldline. The word line driver circuit includes a transistor having a first current carrying terminal coupled to the word line driver output signal and a second current carrying terminal coupled to a first node. A gate of the transistor is coupled to the word line input signal, and the transistor provides a path from the word line to the first node while the word line is asserted. A programmable word line underdrive circuit is coupled between the first node and a ground node to reduce a voltage on the word line output signal. A plurality of word line driver circuits are coupled to the first node and use the word line underdrive circuit to underdrive their respective word lines.