A synchrous graphic RAM having a block write control function, includes a column decoder for selecting a column line; a column predecoder for outputting a signal for controlling the operation of the column decoder; and a column predecoder switching portion for outputting a signal for controlling...http://www.google.es/patents/US5812485?utm_source=gb-gplus-sharePatente US5812485 - Synchronous graphic RAM having block write control function
Synchronous graphic RAM having block write control function
