Integrated circuit device having signal discrimination circuit a

Details Integrated circuit device having signal discrimination circuit a Integrated circuit device having signal discrimination circuit a

1991-11-12

1992-12-01

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

371 225, G01R 3128

Patent

active

051682192

ABSTRACT:
An integrated circuit device formed on a chip includes a pair of signal input terminals, a signal discriminating circuit having a pair of input terminals coupled to the signal input terminals, for comparing a data signal and a reference signal supplied through the input terminals and for determining whether or not the level of said data signal is higher than that of said reference signal, a pair of test signal terminals to which a predetermined voltage is applied, and a voltage dividing circuit for dividing the predetermined voltage to thereby generate a test signal to be supplied to the signal discriminating circuit through the input terminals.

REFERENCES:
patent: 3879662 (1975-04-01), Barneck
patent: 3883753 (1975-05-01), Harrison, Jr. et al.
patent: 4357703 (1982-11-01), Van Brunt
Patent Abstracts of Japan, vol. 6, No. 262 (P164)[1140], Dec. 21, 1982 & JP-A-57 157 164 (Nippon Denshin Denwa Kosha) Sep. 28, 1982.
Patent Abstracts of Japan, vol. 110, No. 3 (E-137), Sep. 14, 1979 & JP-A-54 087 489 (NEC Corp.) Jul. 11, 1979.
Patent Abstracts of Japan, vol. 106, No. 9 (E-313), May 10, 1985 & JP-A-59 231 918 (Hitachi Seisakusho K.K.) Dec. 26, 1984.

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