Patent ID: 9627027
Date: 2017-04-18
CPC Classifications: G11C

Claim:
1. A semiconductor device comprising: a refresh controller suitable for generating an auto-refresh enable signal and a smart refresh enable signal which are alternately toggled, and generating an internal refresh signal which pulses whenever the auto-refresh enable signal and the smart refresh enable signal are activated, at each unit refresh period corresponding to an external refresh signal; an address providing unit suitable for alternately providing an auto-refresh address and a smart refresh address according to the auto-refresh enable signal, the smart refresh enable signal, and a target address; and a word line enable unit suitable for alternately enabling a word line corresponding to the auto-refresh address based on the internal refresh signal corresponding to the auto-refresh enable signal and a word line corresponding to the smart refresh address based on the internal refresh signal corresponding to the smart refresh enable signal a predetermined number of times during the unit refresh period.