Integrated circuit having two circuit blocks energized through d

Details Integrated circuit having two circuit blocks energized through d Integrated circuit having two circuit blocks energized through d

1993-03-26

1994-08-30

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 54, 361 91, 361111, H02H 904

Patent

active

053433521

ABSTRACT:
A semiconductor integrated circuit employing a separate voltage supplying system in which a first circuit block is energized through a power supply line and a second circuit block is energized through another power supply line and provided with an improved protection circuit for the first circuit block is disclosed. The improved protection circuit includes a first discharge circuit for operatively discharging abnormal electrostatic charges at a signal line connected to the first circuit block to one power supply line and a second discharge circuit for operatively discharging abnormal electrostatic charges at the signal wiring to another power supply line.

REFERENCES:
patent: 4855863 (1989-08-01), Yoshitake
patent: 4996626 (1991-02-01), Say

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