Gunn transceiver logic input circuit for use in a semiconductor

Details Gunn transceiver logic input circuit for use in a semiconductor Gunn transceiver logic input circuit for use in a semiconductor

1996-04-01

1997-10-21

Hudspeth, David R.

Electronic digital logic circuitry

Interface

Logic level shifting

326 21, 326 86, H03K 190175

Patent

active

056800622

ABSTRACT:
A gunn transceiver logic input circuit for use in a semiconductor memory device is capable of effectively inputting a signal having a small voltage difference. The gunn transceiver logic input circuit includes first and second input units which respectively input a GTL-level input signal and a GTL-level reference signal. First and second generating units with first and second level shifters respectively shift the GTL-level input signal and GTL-level reference signal to the ECL-level. An ECL buffer circuit compares the voltages between the ECL-level input signal and the ECL-level reference signal and generates first and second ECL-level output signals while maintaining a swing width of the GTL level signal.

REFERENCES:
patent: 5023488 (1991-06-01), Gunning
patent: 5111080 (1992-05-01), Mizukami et al.
patent: 5122691 (1992-06-01), Balakrishnan
patent: 5438282 (1995-08-01), Kuo
patent: 5465057 (1995-11-01), Takahashi
patent: 5528171 (1996-06-01), Doi et al.
patent: 5576639 (1996-11-01), Park
patent: 5576642 (1996-11-01), Nguyen et al.

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