Oscillator of semiconductor device

Details Oscillator of semiconductor device Oscillator of semiconductor device

2007-06-19

2007-06-19

Mis, David (Department: 2817)

Oscillators

Relaxation oscillators

C331S153000, C331S173000, C331S185000

Reexamination Certificate

active

11125109

ABSTRACT:
An oscillator of a semiconductor memory device, wherein a reference voltage that flexibly shifts according to the shift in a power supply voltage is generated, and a reference clock is generated using the reference voltage. It is thus possible to generate the reference clock having a constant cycle regardless of the shift in the power supply voltage which can keep constant the duration period of internal control signals of devices, such as a timer and a pump circuit, which are synchronized to the reference clock.

REFERENCES:
patent: 6917249 (2005-07-01), Kuo et al.
patent: 100265611 (2000-06-01), None

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