A dynamic type semiconductor memory device includes a CBR detecting circuit for detecting a timing condition of /CAS before /RAS, an RS flip-flop which is set depending on an output of the CBR detecting circuit, a pulse generating circuit which is activated in response to an output of the RS flip-flop...http://www.google.fr/patents/US5404335?utm_source=gb-gplus-shareBrevet US5404335 - Dynamic type semiconductor memory device operable in a self-refreshing mode
Dynamic type semiconductor memory device operable in a self-refreshing mode
