Programmable termination

Details Programmable termination Programmable termination

2011-01-18

2011-01-18

Cho, James (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S034000

Reexamination Certificate

active

07872495

ABSTRACT:
A unit cell for a programmable termination circuit in an integrated circuit and a method for programming such termination circuit are described. In an embodiment, such unit cells may have three n-type and three p-type transistors. A first transistor is coupled to receive a first float control signal. A second transistor is coupled to receive a second float control signal. The third and fourth transistors are coupled to receive a first termination voltage control signal. The fifth and sixth transistors are coupled to receive a second termination voltage control signal. The first float control signal and the second float control signal are a pair of complementary signals.

REFERENCES:
patent: 7205788 (2007-04-01), Wang et al.
patent: 7692451 (2010-04-01), Ishikawa
patent: 7782647 (2010-08-01), Lee et al.

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