Non-volatile semiconductor memory having multiple external power supplies
AssigneeMosaid Technologies Incorporated
InventorsJin-Ki Kim, Peter Gillingham
Life of this patent
Estimating the term…
Abstract
A memory device includes core memory such as flash memory for storing data. The memory device includes a first power input to receive a first voltage used to power the flash memory. Additionally, the memory device includes a second power input to receive a second voltage. The memory device includes power management circuitry configured to receive the second voltage and derive one or more internal voltages. The power management circuitry supplies or conveys the internal voltages to the flash memory. The different internal voltages generated by the power management circuitry (e.g., voltage converter circuit) and supplied to the core memory enable operations such as read/program/erase with respect to cells in the core memory.
Claims22
A method comprising:
- receiving a first voltage, the first voltage received on a first power input of a non-volatile memory device, the first voltage being a voltage other than zero volts;
- receiving a second voltage, the second voltage received on a second power input of the non-volatile memory device, and a magnitude of the second voltage being greater than a magnitude of the first voltage;
- and
- via circuitry in the non-volatile memory device, converting the second voltage to:
- a first internal voltage supporting erase operations within the non-volatile memory device;
- and
- a second internal voltage supporting programming operations within the non-volatile memory device.
Dependencies are inferred from the claim text.