Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2006-08-15

2006-08-15

Cho, James H. (Department: 2819)

Electronic digital logic circuitry

Interface

Supply voltage level shifting

C326S086000

Reexamination Certificate

active

07091748

ABSTRACT:
A semiconductor integrated circuit includes a first logic circuit to which a first power supply voltage is applied and which outputs a first signal, a first level conversion circuit to which the first power supply voltage and a second power supply voltage having an amplitude of second voltage level different from the first power supply voltage are supplied and which outputs a second signal, a second logic circuit to which the second power supply voltage is applied and which outputs a third signal, and a second level conversion circuit which is connected between the first and second logic circuits, to which the first and second power supply voltages are applied, and which level-converts the third signal of the second voltage level output from the second logic circuit to the first voltage level and outputs a fourth signal.

REFERENCES:
patent: 5952847 (1999-09-01), Plants et al.
patent: 6067257 (2000-05-01), Kitsukawa et al.
patent: 6249145 (2001-06-01), Tanaka et al.
patent: 6307397 (2001-10-01), Mueller et al.
patent: 6359471 (2002-03-01), Mueller et al.
patent: 6501301 (2002-12-01), Taguchi

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