发明名称 |
Impedance controller for semiconductor device |
摘要 |
An impedance controller includes multiple determination units for determining which of multiple candidate codes results in a best impedance match for an I/O pad of a semiconductor device. In addition, an error prevention unit of the impedance controller prevents any undesired bit pattern from causing improper operation of the impedance controller. Furthermore, the impedance controller includes a dummy transistor array for improved linearity of impedance variation.
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申请公布号 |
US7521957(B2) |
申请公布日期 |
2009.04.21 |
申请号 |
US20060409756 |
申请日期 |
2006.04.24 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KOO KYUNG-HOI |
分类号 |
H03K17/16;H03B1/00;H03K19/003 |
主分类号 |
H03K17/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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