Data output driving circuit of semiconductor memory apparatus

Details Data output driving circuit of semiconductor memory apparatus Data output driving circuit of semiconductor memory apparatus

2011-06-14

2011-06-14

Cho, James H. (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S030000, C327S109000, C327S112000

Reexamination Certificate

active

07961008

ABSTRACT:
A data output driving circuit includes a plurality of driving units that are set to have different impedance values from one another, and the number of driving units is less than the number of a plurality of required driving impedance values such that the driving units can obtain the plurality of required driving impedance values by a combination thereof, and a driving control unit that independently controls the operation of the plurality of driving units so as to obtain the plurality of driving impedance values required.

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Rhyne “Fundamentals of Digital Systems Design” N.J., 1973 pp. 70-71.
Rhyne “Fundamentals of Digital Systems Design” N.J., 1973 pp. 70-71 (Provided to Applicant in Previous Rejection mailed Feb. 7, 2008).
Rhyne “Fundamentals of Digital Systems Design” N.J. 1973 pp. 70-71.

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