Invention Grant
- Patent Title: Impedance controlled output driver
- Patent Title (中): 阻抗控制输出驱动
-
Application No.: US222590Application Date: 1998-12-28
-
Publication No.: US6163178APublication Date: 2000-12-19
- Inventor: Donald C. Stark , Jun Kim , Kurt T. Knorpp , Michael Tak-Kei Ching , Natsuki Kushiyama
- Applicant: Donald C. Stark , Jun Kim , Kurt T. Knorpp , Michael Tak-Kei Ching , Natsuki Kushiyama
- Applicant Address: CA Mountain View
- Assignee: Rambus Incorporated
- Current Assignee: Rambus Incorporated
- Current Assignee Address: CA Mountain View
- Main IPC: G11C7/10
- IPC: G11C7/10 ; H03B1/00 ; H03K17/16 ; H03K19/003
Abstract:
An output driver has an output multiplexor and an output current driver. The output multiplexor receives a data signal and outputs a q-node signal. The output current driver receives the q-node signal and drives a bus based on the q-node signal. The output multiplexor processes the data signal in various ways to generate the q-node signal. The output current driver is responsive to current control bits to select a amount of output drive current. In addition, the output multiplexor is controlled such that the output impedance of the output current driver is maintained within a predetermined range.
Public/Granted literature
- US4870951A Endoscope having varying diameter contents in the insertable part Public/Granted day:1989-10-03
Information query
