Semiconductor device having improved immunity to power supply vo

Details Semiconductor device having improved immunity to power supply vo Semiconductor device having improved immunity to power supply vo

1998-02-18

2000-05-09

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327311, 361 17, H03K 500

Patent

active

06060946&

ABSTRACT:
An input buffer circuit is connected to a first power supply voltage pad for applying a first power supply voltage, and a first ground line. An internal circuit larger in power consumption than the input buffer circuit is connected to a second power supply voltage pad for applying a second power supply voltage, and a second ground line. The parasitic resistance of the first ground line is higher than that of the second ground line. By connecting a capacitance between a power supply line connected to the first power supply voltage pad, and the first ground line, fluctuations in first power supply voltage are suppressed to prevent the input buffer circuit from malfunctioning.

REFERENCES:
patent: 5399920 (1995-03-01), Tran
patent: 5659258 (1997-08-01), Tanabe et al.
patent: 5731694 (1998-03-01), Wilcox et al.
patent: 5736869 (1998-04-01), Wei

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