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US 2003/0147276 A1Published application
Semiconductor storage device
AssigneeSeiko Instruments Inc.
InventorHiroki Wake
Life of this patent
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Abstract
The semiconductor storage device includes: a booster circuit (12) for boosting a power supply voltage (11) supplied to the IC; and a limiter circuit (13) having a function of performing voltage limitation of a high voltage which is a booster circuit output. The limiter circuit 13 selects one voltage value from two values based on whether it is a data recording/erasing time or an evaluation time, to output the one to the memory circuit block 14.
Claims4
A semiconductor storage device which is electrically writable and erasable, comprising:
- a booster circuit for boosting a power supply voltage supplied to an IC;
- a limiter circuit having a function of performing voltage limitation of a high voltage which is a booster circuit output;
- and
- a memory circuit block receiving a signal from the limiter circuit;
- wherein the limiter circuit selects one voltage value from two values based on whether it is a data recording/erasing time or an evaluation time, to output the one.
2 more elements
Dependencies are inferred from the claim text.