Taiwan Semiconductor Manufacturing Comp. Ltd.

Yuhsiang Chen

Yu-Der Chih

Shao-Yu Chou

Chun-Hao Chang

Min-Shin Wu

Methods for reading a memory are provided. In response to a first address signal, a first signal is obtained according to first data of the memory and a second signal is obtained according to second data of the memory by a decoding circuit. Binary representation of the first signal is complementary to that of the second signal. A first sensing signal is provided according to a reference signal and the first signal and a second sensing signal is provided according to the reference signal and the second signal by a sensing circuit. An output corresponding to the first sensing signal or the second sensing signal is output in response to a control signal, by an output buffer.

Method for reading memory

Memories are provided. A memory includes a first memory array, a second memory array and a read circuit. The first memory array is configured to store first data. The second memory array is configured to store second data that is complementary to the first data. The read circuit includes a decoding circuit, a sensing circuit and an output buffer. The decoding circuit is configured to provide a first signal according to the first data and a second signal according to the second data in response to an address signal. The sensing circuit is configured to provide a first sensing signal according to a reference signal and the first signal, and a second sensing signal according to the reference signal and the second signal. The output buffer is configured to provide the first sensing signal or the second sensing signal as an output according to a control signal.

Memory with symmetric read current profile

Memories are provided. A memory includes a first memory array, a second memory array, and a read circuit. The first memory array is configured to store main data. The second memory array is configured to store complement data that is complementary to the main data. The read circuit includes a first sense amplifier, a second sense amplifier and an output buffer. The first sense amplifier is configured to provide a first sensing signal according to a reference signal and first data of the main data corresponding to a first address signal. The second sense amplifier is configured to provide a second sensing signal according to the reference signal and second data of the complement data corresponding to the first address signal. The output buffer is configured to provide one of the first sensing signal and the second sensing signal as an output according to a control signal.

Memory with symmetric read current profile and read method thereof

Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes an output buffer. The output buffer is configured to simultaneously obtain first data from the first memory array and second data from the second memory array according a first address signal, and selectively provide the first data or the second data as an output according to a control signal. Binary representation of the first data is complementary to that of the second data.

Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes a first decoder coupled to the first memory array, a second decoder coupled to the second memory array, and an output buffer. The first decoder obtains first data from the first memory array according a first address signal. The second decoder obtains second data from the second memory array according the first address signal. The output buffer selectively provides the first data or the second data as an output according to a control signal. The first data is complementary to the second data.

A word line driver comprising a select word line level shifter configured to generate at least one output signal in the first voltage domain or a second voltage domain and a control word line level shifter coupled to the select word line level shifter and configured to generate at least one output signal in the second voltage domain or a third voltage domain based, at least in part, on the at least one output signal generated by the select word line level shifter.

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Zhubei, Taiwan

Yuhsiang Chen