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US 11,536,613 B2Granted
Temperature sensing circuit and sensing method thereof
AssigneeWinbond Electronics Corp.
InventorTakahiko Sato
Life of this patent
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AssigneeWinbond Electronics Corp.
InventorTakahiko Sato
Estimating the term…
A temperature sensing circuit adapted for a memory device and including an oscillator, a count circuit, a control circuit, a sense circuit and a select circuit is provided. The oscillator provides an oscillation signal. The count circuit counts the oscillation signal to generate a first count signal, and generates a second count signal. The count circuit performs a logic operation on the second count signal to generate an enable signal and a sensing adjustment signal. The sense circuit generates a reference temperature voltage by dividing a reference voltage according to the sensing adjustment signal, and compares the reference temperature voltage and a monitor voltage according to the enable signal to generate a determination signal. The select circuit dynamically selects one of the oscillation signal and the first count signal according to the determination signal, and generates a pulse of a refresh request signal according to the dynamically selected one of the oscillation signal and the first count signal.
A temperature sensing circuit adapted for a memory device, comprising:
A sensing method adapted for a memory device, the memory device having a temperature sensing circuit, the temperature sensing circuit having an oscillator, a count circuit, a control circuit, a sense circuit and a select circuit, the sensing method comprising:
Dependencies are inferred from the claim text.