In particular, an MML integrated circuit device generally provides a large number of internal data paths between the memory block and the logic block.
#Memory master 64a0tqdxa mml serial
5,848,016 to Kwak, entitled "Merged Memory and Logic (MML) Integrated Circuits and Methods Including Serial Data Path Comparing", and assigned to the assignee of the present application, the disclosure of which is hereby incorporated herein by reference.MML integrated circuit devices may present new challenges for the testing thereof. MML devices are described, for example, in U.S. Thus, an MML integrated circuit device can replace discrete memory and logic chips that are used in personal computers and other consumer and commercial devices. MML integrated circuit devices generally include a large capacity memory and a large logic block that are merged in one integrated circuit device. Recently, Merged Memory and Logic (MML) integrated circuit devices have been developed. The external data may be stored from external of the MML integrated circuit device into the buffer memory by applying external data from external of the MML integrated circuit device to the MML integrated circuit device, replicating the external data a predetermined number of times in the MML integrated circuit device and storing the replicated external data in the buffer memory.įIELD OF THE INVENTIONThis invention relates to integrated circuit devices, and more particularly to Merged Memory and Logic (MML) integrated circuit devices and methods of testing the same.BACKGROUND OF THE INVENTIONIntegrated circuit devices, such as integrated circuit memory devices and integrated circuit logic devices, are widely used in consumer and commercial applications. The read external data is output from the buffer memory to external of the MML integrated circuit device. The external data is read from the memory block and the read external data is stored from the memory block into the buffer memory. Errors may be detected in an MML integrated circuit device that includes a memory block, a logic circuit and a buffer memory, by storing external data from external of the MML integrated circuit device into the buffer memory, and storing the external data from the buffer memory into the memory block. MML integrated circuit devices also preferably include a data expansion portion that is coupled between the external data and the selection portion, to replicate the external data a predetermined number of times and to transmit the replicated external data to the selection portion.
Thus, MML integrated circuit devices can use the buffer memory to access the memory block during a normal operational mode and during a test mode. The first selection portion is responsive to external data and to the logic circuit, to transmit external data or data from the logic circuit to the memory block via the buffer memory. An MML integrated circuit device includes a memory block, a logic circuit and a buffer memory, and a selection circuit that is coupled between the logic circuit and the buffer memory.
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