INTEGRATED CIRCUIT HAVING TEST CIRCUITRY FOR MEMORY SUB-SYSTEMS

    公开(公告)号:EP4362023A3

    公开(公告)日:2024-05-22

    申请号:EP23204287.9

    申请日:2023-10-18

    Applicant: NXP USA, Inc.

    Abstract: A system includes test control circuitry and a memory. The memory includes a memory array, a pre-decode circuit, and a plurality of address latches. Each address latch of the plurality of address latches is configured to operate in a scan chain of a plurality of scan chains for scan testing. A first set of the plurality of address latches each has a data input coupled to a corresponding address pin of the first memory and each has an output coupled to the pre-decode circuit. A second set of the plurality of address latches, mutually exclusive of the first set, each has a data input coupled to a data input of at least one latch in the first set of the plurality of latches and each is configured to not provide any input to the pre-decode circuit.

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