Semiconductor integrated circuit having input circuit

Details Semiconductor integrated circuit having input circuit Semiconductor integrated circuit having input circuit

1998-03-31

2000-05-23

Le, Dinh

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327311, 327310, 327558, 327427, 327437, 327552, 326 30, H03K 500, H03K 301

Patent

active

06066973&

ABSTRACT:
An input circuit is made up of an external signal input portion which inputs an external signal, a voltage level converting circuit which has an input terminal for inputting a signal from the external signal input circuit and which has an output terminal for outputng the signal to the internal circuit after a voltage level was converted, a first power supply terminal which has a first potential for driving the voltage level converting circuit, a second power supply terminal which has a second potential for driving the voltage level converting circuit, and a noise control portion which couples to the input terminal of the voltage level converting circuit, which controls a noise from the first power supply terminal and/or the second power supply terminal, and which has a first capacitor. Accordingly, the input circuit could be applied the stable signal to the internal circuit.

REFERENCES:
patent: 4645951 (1987-02-01), Uragami

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