Storage apparatus and electronic device
AssigneeHuawei Technologies Co., Ltd.
InventorsHonghui Hu, Guangqing Liang
Life of this patent
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Abstract
A storage apparatus includes a control chip, a storage chip, a power interface configured to receive a first voltage, a first variable-voltage circuit. An input end of the first variable-voltage circuit is coupled to the power interface. The first variable-voltage circuit is configured to convert the first voltage into a second voltage, and provide the second voltage to the control chip and a second variable-voltage circuit, where an input end of the second variable-voltage circuit is coupled to the power interface. The second variable-voltage circuit is configured to convert the first voltage into a third voltage and provide the third voltage to the control chip and the storage chip.
Claims14
A storage apparatus comprising:
- a control chip comprising:
- a first core circuit;
- an embedded MultiMediaCard input/output (EMMC I/O) circuit;
- and
- a first flash I/O circuit;
- a storage chip comprising:
- a second flash I/O circuit;
- and
- a second core circuit;
- a power interface coupled to the control chip and to the storage chip and configured to receive a first voltage of 3.3V;
- a first variable-voltage circuit coupled to the power interface and comprising a first input end, wherein the first variable-voltage circuit is configured to:
- receive the first voltage at the first input end;
- convert the first voltage to a second voltage of 1.2V;
- and
- provide the second voltage to the first core circuit;
- and
- a second variable-voltage circuit coupled to the power interface and comprising a second input end, wherein the second variable-voltage circuit is configured to:
- receive the first voltage at the second input end;
- convert the first voltage into a third voltage of 1.8V;
- and
- provide the third voltage to the EMMC I/O circuit;
- and
- a switch circuit coupled to an output of the second variable-voltage circuit, the power interface, and to the first flash I/O circuit and the second flash I/O circuit,
- wherein the first flash I/O circuit and the second flash I/O circuit are configured to receive the first voltage or the third voltage, and
- wherein the second core circuit is configured to receive the first voltage.
An electronic device comprising:
- a first card slot operable at a first voltage;
- a second card slot operable at a second voltage;
- and
- a storage apparatus accommodated in the first card slot and comprising:
- a control chip comprising:
- a first core circuit;
- an embedded MultiMediaCard input/output (EMMC I/O) circuit;
- and
- a first flash I/O circuit;
- a storage chip comprising:
- a second flash I/O circuit;
- and
- a second core circuit;
- a power interface coupled to the control chip and to the storage chip and configured to receive the first voltage;
- a first variable-voltage circuit coupled to the power interface and comprising a first input end and configured to:
- receive the first voltage at the first input end;
- convert the first voltage into the second voltage;
- and
- provide the second voltage to the first core circuit;
- and
- a second variable-voltage circuit coupled to the power interface and comprising a second input end and configured to:
- receive the first voltage at the second input end;
- convert the first voltage to a third voltage;
- and
- provide the third voltage to the EMMC I/O circuit;
- and
- a switch circuit coupled to an output of the second variable-voltage circuit, the power interface, and to the first flash I/O circuit and the second flash I/O circuit,
- wherein the first flash I/O circuit and the second flash I/O circuit are configured to receive first power based on the first voltage or the third voltage, and
- wherein the second core circuit is configured to receive second power based on the first voltage.
Dependencies are inferred from the claim text.