ESMT
F25L04UA
Sector-Erase
The Sector-Erase instruction clears all bits in the selected sector
to FFH. A Sector-Erase instruction applied to a protected
memory area will be ignored. Prior to any Write operation, the
[AMS-A12] (AMS = Most Significant address) are used to determine
the sector address (SAX), remaining address bits can be VIL or
VIH. CE must be driven high before the instruction is executed.
The user may poll the Busy bit in the software status register or
wait TSE for the completion of the internal self-timed
Sector-Erase cycle. See Figure 8 for the Sector-Erase sequence.
Write-Enable (WREN) instruction must be executed. CE must
remain active low for the duration of the any command sequence.
The Sector-Erase instruction is initiated by executing an 8-bit
command, 20H, followed by address bits [A23-A0]. Address bits
CE
0
1 2
3
4 5 6 7
8
15 16
23 24
31 32
MODE3
MODE0
39
SCK
SI
02
ADD.
MSB
ADD.
ADD.
DIN
MSB
HIGH IMPENANCE
SO
FIGURE 8 : SECTOR-ERASE SEQUENCE
Elite Semiconductor Memory Technology Inc.
Publication Date: Jan. 2009
Revision: 1.2 12/25
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
