发明名称 SEMICONDUCTOR MEMORY DEVICE OUTPUTTING WORD LINE VOLTAGE THROUGH EXTERNAL PIN AND VOLTAGE MEASUREMENT METHOD THEREOF
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a semiconductor memory device outputting word line voltage through an external pin, and to provide a voltage measurement method thereof. <P>SOLUTION: The semiconductor memory device includes a selection signal generation circuit 220, a word line voltage generation circuit 240, and a switch circuit 260. The selection signal generation circuit activates one of selection signals corresponding to each of word line in accordance with an external command signal indicating a test operation mode and an external selection code signal for specifying word line voltage used for the memory device, during the test operation mode for discriminating whether the word line voltage is a desired level or not. The word line voltage generation circuit generates word line voltage corresponding to the activated selection signal among the word line voltage, the switch circuit transfers word line voltage output from the word line voltage generation circuit to a pad connected to the external pin in accordance with the external command signal. <P>COPYRIGHT: (C)2010,JPO&INPIT</p>
申请公布号 JP2009245573(A) 申请公布日期 2009.10.22
申请号 JP20080101611 申请日期 2008.04.09
申请人 SAMSUNG ELECTRONICS CO LTD 发明人 KIM HYUNG-GON;LEE YEONG-TAEK
分类号 G01R31/28;G11C29/12;G11C8/08;G11C16/02;G11C16/06;G11C29/00 主分类号 G01R31/28
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