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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
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