INPUT DATA ALIGNMENT CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING THE SAME

摘要

An input data alignment circuit includes a data sampler, a frequency divider, a polarity determination block, and a data alignment block. The data sampler provides a data sequence based on data serially input according to a data strobe signal. The frequency divider generates a data alignment signal based on a divided frequency of the data strobe signal. The polarity determination block determines a polarity of the data alignment signal and provides a control signal based on the determined polarity. The data alignment block aligns the data sequence in parallel according to data alignment signal and control signal and generates output data.

主权项

1. An input data alignment circuit, comprising:
an input data sampler to provide a data sequence based on data serially input according to a data strobe signal; a frequency divider to generate a data alignment signal based on a divided frequency of the data strobe signal; a polarity determination block to determine a polarity of the data alignment signal and to provide a control signal based on the determined polarity; and a data alignment block to align the data sequence in parallel according to the data alignment signal and control signal, and to generate output data.