Memory systems and controllers for generating a command address and methods of operating same

    公开(公告)号:US12235757B2

    公开(公告)日:2025-02-25

    申请号:US18318906

    申请日:2023-05-17

    Abstract: A memory system includes a host system having a memory controller therein, which is configured to generate a command address signal. The memory controller includes a first bit signal generator configured to generate a data signal as a plurality of data bits, a second bit signal generator configured to generate a command address bus inversion bit (CABIB) having a high or low logic level that is a function of a number of data bits within the data signal having a predetermined logic level, and a parity bit generator configured to set a parity signal to a first logic level when a total number of data bits within the data signal and the CABIB having a high logic level is an even number. A storage system is also provided, which is configured to write or read data in response to the command address signal received from the host system. The memory controller is configured to set the CABIB to a high logic level when: (i) “n”, which is a number of bits included in the command address signal, is a positive integer greater than one, and (ii) a number of data bits within the data signal having a low logic level is greater than or equal to (n/2)−1.

    Semiconductor memory device and memory system including the same

    公开(公告)号:US11947810B2

    公开(公告)日:2024-04-02

    申请号:US17743137

    申请日:2022-05-12

    CPC classification number: G06F3/0619 G06F3/0655 G06F3/0656 G06F3/0679

    Abstract: A semiconductor memory device includes a memory cell array and a cyclic redundancy check (CRC) engine. The memory cell array includes a plurality of volatile memory cells coupled to respective ones of a plurality of word-lines and respective ones of a plurality of bit-lines. The CRC engine, during a memory operation on the memory cell array, detects an error in a main data and a system parity data provided from a memory controller external to the semiconductor memory device through a link, generates an error flag indicating whether the detected error corresponds to either a first type of error associated with the link or a second type of error associated with the volatile memory cells based on the system parity data and transmit the error flag to the memory controller.

    SEMICONDUCTOR DEVICE
    5.
    发明公开

    公开(公告)号:US20240005204A1

    公开(公告)日:2024-01-04

    申请号:US18054176

    申请日:2022-11-10

    CPC classification number: G06N20/00

    Abstract: A semiconductor device includes a sequence data generator, which is configured to generate sequence data on a plurality of data lines, and a symbol changer. The symbol changer is configured to generate a training pattern from the sequence data by replacing, for each of the plurality of data lines, each occurrence of a bitstream within the sequence data that has a predetermined symbol with an alternative symbol. The sequence data generator may include a sequence generator, which is configured to generate a pseudo random binary sequence (PRBS), based on a seed value for each clock cycle.

    MEMORY SYSTEMS AND CONTROLLERS FOR GENERATING A COMMAND ADDRESS AND METHODS OF OPERATING SAME

    公开(公告)号:US20230376414A1

    公开(公告)日:2023-11-23

    申请号:US18318906

    申请日:2023-05-17

    CPC classification number: G06F12/06

    Abstract: A memory system includes a host system having a memory controller therein, which is configured to generate a command address signal. The memory controller includes a first bit signal generator configured to generate a data signal as a plurality of data bits, a second bit signal generator configured to generate a command address bus inversion bit (CABIB) having a high or low logic level that is a function of a number of data bits within the data signal having a predetermined logic level, and a parity bit generator configured to set a parity signal to a first logic level when a total number of data bits within the data signal and the CABIB having a high logic level is an even number. A storage system is also provided, which is configured to write or read data in response to the command address signal received from the host system. The memory controller is configured to set the CABIB to a high logic level when: (i) “n”, which is a number of bits included in the command address signal, is a positive integer greater than one, and (ii) a number of data bits within the data signal having a low logic level is greater than or equal to (n/2)−1.

    SEMICONDUCTOR DEVICE WITH ELECTRICAL VIAS

    公开(公告)号:US20250038151A1

    公开(公告)日:2025-01-30

    申请号:US18591889

    申请日:2024-02-29

    Abstract: According to some implementations, provided is a semiconductor device including: a first semiconductor chip including first through-vias, and first front pads electrically connected to the first through-vias; and a second semiconductor chip disposed below the first semiconductor chip, and including a substrate, a circuit layer disposed below the substrate, second front pads below the circuit layer, rear pads disposed on the substrate and electrically connected to the corresponding first front pads, second through-vias penetrating through the substrate and electrically connected to the second front pads, and a rear redistribution layer electrically connecting the second through-vias and the rear pads, wherein at least one of the rear pads is spaced apart from a corresponding one of the second through-vias in a horizontal direction, and overlaps a corresponding one of the first through-vias in a vertical direction.

    Transmitter and receiver for 3-level pulse amplitude modulation signaling and system including the same

    公开(公告)号:US11942968B2

    公开(公告)日:2024-03-26

    申请号:US17975034

    申请日:2022-10-27

    CPC classification number: H03M5/145 H04L1/0009 H04L1/0014

    Abstract: A transmitter includes an encoder configured to divide a first number of binary input bits of an input data signal into a first bit group and a second bit group, generate a first intermediate bit group and a second intermediate bit group by manipulating the first bit group and the second bit group differently based on a value of the first bit group, and generate a first symbol group and a second symbol group by encoding the first intermediate bit group and the second intermediate bit group, each of the first symbol group and the second symbol group including a plurality of symbols, and each of the plurality of symbols having three different voltage levels. The transmitter includes a driver configured to generate an output data signal by concatenating the first symbol group and the second symbol group.

Patent Agency Ranking