Semiconductor memory circuit and data processing using the same

摘要

The present invention relates to a semiconductor memory circuit enabling stable data transmission in a high frequency operation and a data processing system using the same. The data processing system includes a semiconductor memory circuit configured to output data, corresponding to a read command, in response to an external strobe signal, and a controller configured to provide the semiconductor memory circuit with the read command and the strobe signal related to the read command.

主权项

1. A semiconductor memory circuit, comprising:
a command decoder configured to generate a read command by decoding a command signal based on a clock signal; a data path activation unit configured to generate a selection signal in response to an address signal and the read command; a memory block configured to provide a signal line with data corresponding to the selection signal; an output latch unit configured to output the data of the signal line in response to data output enable signals; and an output timing adjustment unit configured to generate the data output enable signals which are criteria for an external strobe signal by adjusting a timing of the read command in response to the strobe signal.