发明名称 |
SEMICONDUCTOR MEMORY MODULE AND SEMICONDUCTOR MEMORY SYSTEM HAVING TERMINATION RESISTOR UNITS |
摘要 |
A semiconductor memory module includes a memory module board having at least one semiconductor memory device. The semiconductor memory device includes a data input buffer that receives data and a first reference voltage via first and second input terminals, a command/address buffer that receives a command/address signal and a second reference voltage via first and second input terminals, and a first termination resistor unit connected to the first input terminal of the data input buffer. The semiconductor memory module further includes a second termination resistor unit located on the memory module board and connected to an internal command/address bus. The first termination resistor unit includes a first resistor connected between a first voltage source and the first input terminal of the data input buffer, and the second termination resistor unit includes a second resistor connected between a second voltage source and the first input terminal of the command/address input buffer.
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申请公布号 |
US2009303802(A1) |
申请公布日期 |
2009.12.10 |
申请号 |
US20090539840 |
申请日期 |
2009.08.12 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE JUNG-BAE |
分类号 |
G11C7/10;G11C5/14;G11C7/00;H03K19/003 |
主分类号 |
G11C7/10 |
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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