发明授权
EP1476877B1 PROGRAMMABLE CONDUCTOR RANDOM ACCESS MEMORY AND METHOD FOR SENSING SAME 有权
随着对他的阅读可编程梯子和方式直接存取存储器

PROGRAMMABLE CONDUCTOR RANDOM ACCESS MEMORY AND METHOD FOR SENSING SAME
摘要:
A sense circuit for reading a resistance level of a programmable conductor random access memory (PCRAM) cell is provided. A voltage potential difference is introduced across a PCRAM cell by activating an access transistor from a raised rowline voltage. Both a digit line and a digit complement reference line are precharged to a first predetermined voltage. The cell being sensed has the precharged voltage discharged through the resistance of the programmable conductor memory element of the PCRAM cell. A comparison is made of the voltage read at the digit line and at the reference conductor. If the voltage at the digit line is greater than the reference voltage, the cell is read as a high resistance value (e.g., logic HIGH); however, if the voltage measured at the digit line is lower than that of the reference voltage, the cell is read as a low resistance value (e.g., logic LOW).
信息查询
0/0