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US 7,023,745 B2Granted
Voltage detect mechanism
AssigneeIntel Corporation
InventorsPeter R. Munguia, Edward Butler
Life of this patent
Estimating the term…
Abstract
According to one embodiment a computer system is disclosed. The computer system includes a central processing unit (CPU) and a memory device, coupled to the CPU. The memory device includes a charge pump circuit to amplify a first voltage, and a voltage detection circuit coupled to the charge pump circuit to disable the charge pump circuit if a second voltage is detected.
Claims25
A system comprising:
- a central processing unit (CPU);
- and
- a memory device, coupled to the CPU, having:
- a charge pump circuit to amplify a first voltage;
- a voltage detection circuit, coupled to the charge pump circuit, to enable the charge pump circuit if the first voltage is detected and to disable the charge pump circuit if a second voltage is detected;
- and
- a regulator coupled to the voltage detection circuit, wherein the regulator is enabled whenever the second voltage is detected.
4 more elements
A method comprising:
- receiving a voltage at a memory device from an external source;
- determining whether the received voltage is suitable to power a memory array within the memory device;
- disabling a charge pump circuit if the received voltage is suitable to power the memory array;
- and
- supplying the external voltage to the memory array.
2 more elements
A memory device comprising:
- a memory array;
- a charge pump circuit coupled to the memory array to amplify a first voltage;
- and
- a voltage detection circuit, coupled to the charge pump circuit and the memory array, to enable the charge pump circuit if the first voltage is detected and to disable the charge pump circuit if a second voltage is detected;
- and
- a regulator coupled to the voltage detection circuit, wherein the regulator is enabled whenever the second voltage is detected.
3 more elements
Dependencies are inferred from the claim text.