Invention Grant
US08040164B2 Circuits and methods for programming integrated circuit input and output impedances
有权
用于编程集成电路输入和输出阻抗的电路和方法
- Patent Title: Circuits and methods for programming integrated circuit input and output impedances
- Patent Title (中): 用于编程集成电路输入和输出阻抗的电路和方法
-
Application No.: US12286321Application Date: 2008-09-29
-
Publication No.: US08040164B2Publication Date: 2011-10-18
- Inventor: Suresh Parameswaran , Joseph Tzou , Morgan Whately , Thinh Tran
- Applicant: Suresh Parameswaran , Joseph Tzou , Morgan Whately , Thinh Tran
- Applicant Address: US CA San Jose
- Assignee: Cypress Semiconductor Corporation
- Current Assignee: Cypress Semiconductor Corporation
- Current Assignee Address: US CA San Jose
- Main IPC: H03B1/00
- IPC: H03B1/00 ; H03K3/00

Abstract:
An integrated circuit may include at least a first replica driver stage coupled between a reference impedance input and a first power supply node and having a first programmable driver impedance set by a first driver configuration value in the same manner as a first output driver section of the integrated circuit. At least a first replica input termination stage may be coupled between the reference impedance input and the first power supply node and having a first programmable termination impedance set by a first termination configuration value in the same manner as a first input termination section of the integrated circuit. An impedance programming circuit may generate at least the first driver configuration value and the first termination configuration value in response to a potential at the reference node.
Public/Granted literature
- US20090085614A1 Circuits and methods for programming integrated circuit input and output impedances Public/Granted day:2009-04-02
Information query