US PATENT SUBCLASS 326 / 66
.~.~.~ ECL to/from CMOS

Current as of: June, 1999
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326 /   HD   ELECTRONIC DIGITAL LOGIC CIRCUITRY

62  DF  INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) {3}
63  DF  .~ Logic level shifting (i.e., interface between devices of different logic families) {3}
64  DF  .~.~ Bi-CMOS {3}
66.~.~.~ ECL to/from CMOS

DEFINITION

Classification: 326/66

ECL to/from CMOS:

(under subclass 64) Subject matter comprising the interfacing between an emitter-coupled logic device and a complementary metal-oxide semiconductor device.

(1) Note. An emitter-coupled logic device is a nonsaturated bipolar logic device in which the emitters of the input logic transistors are coupled to the emitter of a reference transistor.

(2) Note. A CMOS or complementary metal-oxide semiconductor device is a device having a p-channel and an n-channel enhancement type metal-oxide field-effect transistor (MOSFET) which are connected in series across a power supply with their gates tied together.

(3) Note. A MOSFET is a field-effect transistor having a metallic gate insulated from the channel by an oxide layer (e.g., SiO2, etc.), A MOSFET is either enhancement-type (normally turned off) or depletion-type (normally turned on).