Data input butter for use in a semiconductor device

Details Data input butter for use in a semiconductor device Data input butter for use in a semiconductor device

2005-06-15

2008-10-07

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S052000

Reexamination Certificate

active

07432743

ABSTRACT:
The present invention provides a semiconductor design technology, in particular a data input buffer for use therein. This data input buffer secures a data level sensing margin in a weak data transmission cycle upon an asymmetrical data pattern transmission. Specifically, the present invention provides a technology of improving a level sensing margin in a weak data transmission cycle following after adjusting a reference level for input sensing by a constant level toward a strong data direction in a strong data transmission cycle (in case of repeating data with same polarity) by tracing a pattern of transmission data. Further, the present invention employs a method of adjusting an amount of current that flows in a data input part and a reference voltage input part to make a pull-up/pull-down of the reference level without a change of the reference voltage that is constant voltage.

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