发明名称 |
SEMICONDUCTOR DEVICE HAVING DATA TERMINAL SUPPLIED WITH PLURAL WRITE DATA IN SERIAL |
摘要 |
Disclosed herein is a semiconductor device that includes: a frequency dividing circuit dividing a frequency of a first clock signal to generate second clock signals that are different in phase from one another; a multiplier circuit multiplying the second clock signals to generate a third clock signal; a data input/output terminal; data buses; and a data input/output circuit coupled between the data input/output terminal and the data buses. The data input/output circuit includes a data output circuit and a data input circuit. The data output circuit outputs read data supplied in parallel from the data buses to the data input/output terminal in serial in synchronism with the third clock signal. The data input circuit outputs write data supplied in serial from the data input/output terminal to the data buses in parallel in synchronism with a predetermined one of the second clock signals.
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申请公布号 |
US2013155792(A1) |
申请公布日期 |
2013.06.20 |
申请号 |
US201213715995 |
申请日期 |
2012.12.14 |
申请人 |
ELPIDA MEMORY, INC.;ELPIDA MEMORY, INC. |
发明人 |
MATSUI YOSHINORI |
分类号 |
G11C7/22;G11C8/18 |
主分类号 |
G11C7/22 |
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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