Invention Grant
- Patent Title: Impedance code generation circuit and integrated circuit including the same
- Patent Title (中): 阻抗代码生成电路和集成电路包括相同
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Application No.: US12977842Application Date: 2010-12-23
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Publication No.: US08319519B2Publication Date: 2012-11-27
- Inventor: Kwang-Su Lee
- Applicant: Kwang-Su Lee
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T Group LLP
- Priority: KR10-2010-0100673 20101015
- Main IPC: H03K19/003
- IPC: H03K19/003
Abstract:
An impedance code generation circuit includes an impedance unit configured to drive a calibration node to a first level by using an impedance value determined by an impedance code, a code generation unit configured to generate the impedance code so that a voltage of the calibration node has a voltage level between a first reference voltage and a second reference voltage, and a reference voltage generation unit configured to generate the first reference voltage and the second reference voltage in response to the impedance code.
Public/Granted literature
- US20120092039A1 IMPEDANCE CODE GENERATION CIRCUIT AND INTEGRATED CIRCUIT INCLUDING THE SAME Public/Granted day:2012-04-19
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