发明名称 SEMICONDUCTOR DEVICE, SIGNAL TRANSMISSION SYSTEM AND SIGNAL TRANSMISSION METHOD
摘要 <P>PROBLEM TO BE SOLVED: To improve a slew rate of a signal transmitted between a semiconductor element having small load capacity and a semiconductor element having large load capacity. <P>SOLUTION: In a semiconductor device of a present embodiment, when a signal is transmitted to a semiconductor element (e.g., memory element 200) having large load capacity, pre-emphasis is performed, and when a signal is transmitted to a semiconductor element (e.g., memory controller 100) having small load capacity, pre-emphasis is not performed or performed a little. By doing this, when the signal is transmitted to the memory element, waveform rounding at a signal rise caused by load capacity is inhibited, and when the signal is transmitted to the memory controller, ringing caused by signal reflection is inhibited. Accordingly, a slew rate of data transmission is improved. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013128190(A) 申请公布日期 2013.06.27
申请号 JP20110276620 申请日期 2011.12.19
申请人 HITACHI LTD 发明人 IKEDA YASUHIRO;UEMATSU YUTAKA;MURAOKA SATOSHI
分类号 H04L25/02;H01L23/12;H04L25/03;H05K1/02 主分类号 H04L25/02
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