A refresh mode switching signal generating circuit generates a refresh mode switching signal of an H level or an L level depending on whether a particular bonding pad is wire-bonded to a power supply terminal of a package. In response to the refresh mode switching signal, the refresh mode switching circuit...http://www.google.es/patents/US5373475?utm_source=gb-gplus-sharePatente US5373475 - Semiconductor device in which the number of word lines selected simultaneously in a refresh mode is externally selectable and method of manufacturing the same
Semiconductor device in which the number of word lines selected ...