64 Mbit SPI Serial Dual I/O Flash
SST25VF064C
Data Sheet
Write-Disable (WRDI)
The Write-Disable (WRDI) instruction resets the Write-
Enable-Latch bit to ‘0,’ thereby, preventing any new Write
operations. The WRDI instruction will not terminate any
program or erase operation in progress. Any program or
erase operation in progress will continue after executing the
WRDI instruction. CE# must be driven high before the
WRDI instruction is executed.
CE#
MODE 3
0
1
2
3
4
5
6
7
SCK
MODE 0
04
SI
MSB
HIGH IMPEDANCE
SO
1392 F19.0
FIGURE 18: Write Disable (WRDI) Sequence
©2010 Silicon Storage Technology, Inc.
S71392-04-000
04/10
19
SST [ SILICON STORAGE TECHNOLOGY, INC ]
