Memory circuit
AssigneeSony Semiconductor Solutions Corporation
InventorsHIROYUKI TEZUKA, MASAMI KURODA
Life of this patent
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Abstract
The reference cells used for reading out data are tested efficiently so as to improve the reliability of the readout data. A memory circuit includes multiple memory arrays, a selection circuit, and a sense amplifier. The selection circuit selects values output from memory cells in any of the multiple memory arrays so as to supply a first value and a second value. A sense amplifier has a first input terminal and a second input terminal. The sense amplifier amplifies and outputs the first value supplied to the first input terminal in reference to the second value supplied to the second input terminal.
Claims15
A memory circuit comprising:
- multiple memory arrays;
- a selection circuit configured to select values output from memory cells in any of the multiple memory arrays, so as to supply a first value and a second value;
- and
- a sense amplifier that has a first input terminal and a second input terminal and that is configured to amplify and output the first value supplied to the first input terminal in reference to the second value supplied to the second input terminal.
Dependencies are inferred from the claim text.