Temperature compensation circuit and method for sensing memory
AssigneeMacronix International Co., Ltd.
InventorsWen-Chiao Ho, Ji-Yu Hung, Chun-Hsiung Hung, Shuo-Nan Hung
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Abstract
A temperature compensation circuit includes a voltage generator, a comparator and an emulation cell array. The voltage generator provides a predetermined voltage and a reference voltage. The comparator has a first terminal for receiving the predetermined voltage, and a second terminal for receiving the reference voltage. The emulation cell array is coupled to the first terminal of the comparator. When a voltage of the first terminal of the comparator is discharged, via the emulation cell array, to be lower than the reference voltage, the comparator outputs a read timing control signal to control a sense amplifier to perform a sensing operation.
Claims11
A temperature compensation circuit, comprising:
- a voltage generator for providing a predetermined voltage and a reference voltage;
- a comparator having a first terminal for receiving the predetermined voltage, and a second terminal for receiving the reference voltage;
- and
- an emulation cell array coupled to the first terminal of the comparator,
- wherein when a voltage of the first terminal of the comparator is discharged, via the emulation cell array, to be lower than the reference voltage, the comparator outputs a read timing control signal to control a sense amplifier to perform a sensing operation.
A temperature compensation method for sensing a memory, the method being applied to a temperature compensation circuit, which comprises a voltage generator, a comparator and an emulation cell array, the method comprising the steps of:
- providing, by the voltage generator, a reference voltage to a second terminal of the comparator;
- charging, by the voltage generator, a first terminal of the comparator to a predetermined voltage;
- discharging the first terminal of the comparator via the emulation cell array;
- and
- outputting, by the comparator, a read timing control signal to control a sense amplifier to perform a sensing operation when a voltage of the first terminal of the comparator is lower than the reference voltage.
Dependencies are inferred from the claim text.