Semiconductor intergrated circuit

Details Semiconductor intergrated circuit Semiconductor intergrated circuit

1986-06-06

1987-11-10

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

307130, 324 73R, G01R 1512

Patent

active

047061570

ABSTRACT:
First and second semiconductor circuits are interconnected by a transmission circuit within an integrated circuit powered by a common voltage supply. The first semiconductor circuit is operative when the voltage applied to the integrated circuit is at a first or a second level different from a ground potential whereas the second semiconductor circuit is operative when the first level is applied and is inoperative when the second level is applied to the integrated circuit. The first semiconductor circuit controls the second semiconductor circuit selectively in test and operative modes as the applied voltage is varied between the first and second levels.

REFERENCES:
patent: 4336495 (1982-06-01), Hapke
patent: 4531173 (1985-07-01), Yamada
patent: 4612499 (1986-09-01), Andresen et al.

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