An address strobe latches a first address. A burst cycle increments the
address internally with additional address strobes. A new memory address
is only required at the beginning of each burst access. Read/Write
commands are issued once per burst access eliminating toggling Read/Write
control line at cycle frequency. Control line transition terminates
access and initializes another burst access. Write cycle times are
maximized thereby allowing increases in burst mode operating frequencies.
Logic near sense amplifiers control write-data drivers thereby providing
maximum write times without crossing current during I/O line
equilibration. By gating global write-enable signals with global
equilibrate signals locally at sense amps, local write-cycle control
signals are provided and valid for essentially the entire cycle time
minus an I/O line equilibration period in burst access memory. For
nonburst mode, write begins following end of equilibration cycle to
provide maximum write time without interfering with subsequent
access-cycle address setup time.