MEMORY DEVICE FOR PREVENTING DUPLICATE PROGRAM OF FAIL ADDRESS AND OPERATING METHOD THEREOF

• Main Authors: KIM HYUNGKYU, JUNG SANG-HOON
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a memory device for preventing a duplicate program of a fail address and an operating method thereof. The memory device includes a first fail address register that stores a failaddress, an input address register that stores an input address, a data comparison circuit that compares write data to be stored in a memory cell corresponding to the input address with read data read from the memory cell, an address comparison circuit that compares the fail address and the input address, and a second fail address register that stores bits of the fail address in parallel based ona first comparison result of the write data with the read data and a second comparison result of the fail address with the input address. 提供了一种用于防止对故障地址重复编程的存储装置及其操作方法。所述存储装置包括：第一故障地址寄存器，存储故障地址；输入地址寄存器，存储输入地址；数据比较电路，将要存储在与输入地址对应的存储单元中的写入数据与从存储单元读取的读取数据进行比较；地址比较电路，将故障地址与输入地址进行比较；以及第二故障地址寄存器，基于写入数据与读取数据的第一比较结果以及故障地址与输入地址的第二比较结果并行地存储故障地址的位。