MEMORY DEVICE HAVING ADDRESS WRAP CIRCUIT

摘要

PURPOSE: A memory device having an address wrap circuit is provided to check rapidly effectiveness of a command signal and an address signal without accessing individually data of a memory device by transmitting an acknowledge signal to a memory controller. CONSTITUTION: An input buffer portion(110) receives a command signal or an address signal applied from a memory controller and transfers the received command signal or the received address signal to the inside of a memory device. An output buffer portion(150) outputs the data from the inside of the memory device to the outside. An address wrap command decoding portion(120) performs a control operation in order to transfer the command signal or the address signal applied to the input buffer portion(110) to the output buffer portion(150). A bus(130) is used for connecting a corresponding line with an output terminal of a corresponding buffer of the input buffer portion(110). A multiplexing portion(140) multiplexes the command signal or the address signal according to a control operation of the address wrap command decoding portion(120).