Datasheet

AS4C16M32MD1
Confidential 33 Rev. 1.0/July 2014
7.6.1 Write to Write
Data for any WRITE burst may be concatenated with or truncated with a subsequent WRITE
command. In either case, a continuous flow of input data, can be maintained. The new WRITE
command can be issued on any positive edge of the clock following the previous WRITE command.
The first data-in element from the new burst is applied after either the last element of a
completed burst or the last desired data element of a longer burst which is being truncated. The
new WRITE command should be issued X cycles after the first WRITE command, where X equals
the number of desired data-in element pairs.
Figure 25 shows concatenated write burst of 4. An example of non-consecutive write
bursts is shown in Figure 26. Full-speed random write accesses within a page or pages
can be performed as shown in Figure 27.
7.6.2 Write to Read
Data for any Write burst may be followed by a subsequent READ command. To follow a Write
without truncating the write burst, tWTR should be met as shown in Figure 28.
Data for any Write burst may be truncated by a subsequent READ command as shown in Figure 29.
Note that the only data-in pairs that are registered prior to the tWTR period are written to the
internal array, and any subsequent data-in must be masked with DM.