Differential ECL

Details Differential ECL Differential ECL

1997-03-27

1999-07-06

Santamauro, Jon

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Bipolar transistor

326130, 327325, H03K 19086

Patent

active

059202068

ABSTRACT:
In order to provide a differential ECL wherein the malfunction resulting from the constant current source being cut off from the power supply is prevented and wherein the output logic is determined on one side even when input terminals thereof are left open, a differential ECL of the invention comprises means for clamping a potential difference that is smaller than a predetermined value between the collector and the emitter of one of the differential transistors and enabling a current to flow through the constant current source.

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