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Class Information
Number: 326/85
Name: Electronic digital logic circuitry > Interface (e.g., current drive, level shift, etc.) > Current driving (e.g., fan in/out, off chip driving, etc.) > Field-effect transistor > Bi-cmos > Having plural output pull-up or pull-down transistors
Description: Subject matter wherein multiple transistors at the circuit output help maintain the output at logic high (pull-up) or logic low (pull-down) levels as needed.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
5138199 Level conversion circuit for converting ECL-level signal into TTL-level signal Aug. 11, 1992
5132568 Tri-state output circuit utilizing a BiCMOS inverter circuit Jul. 21, 1992
5107142 Apparatus for minimizing the reverse bias breakdown of emitter base junction of an output transistor in a tristate bicmos driver circuit Apr. 21, 1992
5105103 Integrated binary amplifier having a Darlington configuration Apr. 14, 1992
5083048 BiMOS tri-state output buffer Jan. 21, 1992
5047669 Tristate circuit using bipolar transistor and CMOS transistor Sep. 10, 1991
4982117 Address transition detector circuit Jan. 1, 1991
4906866 Output buffer for improving di/dt Mar. 6, 1990
4890018 Bipolar-complementary metal oxide semiconductor circuit Dec. 26, 1989
4853560 Logic circuit and semiconductor integrated circuit device capable of operating by different power supplies Aug. 1, 1989
4847522 CMOS amplifier/driver stage with output disable feature Jul. 11, 1989
4839540 Tri-state output circuit Jun. 13, 1989
4829199 Driver circuit providing load and time adaptive current May. 9, 1989
4813020 Semiconductor device Mar. 14, 1989
4794280 Darlington bicmos driver circuit Dec. 27, 1988
4746817 BIFET logic circuit May. 24, 1988
4725982 Tri-state buffer circuit Feb. 16, 1988
4717846 Tri-state output circuit provided with means for protecting against abnormal voltage applied to output terminal Jan. 5, 1988
4678943 Inverting logic buffer BICMOS switching circuit using an enabling switch for three-state operation with reduced dissipation Jul. 7, 1987
4586004 Logic and amplifier cells Apr. 29, 1986

1 2 3

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