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SST25VF032B датащи(PDF) 13 Page - Silicon Storage Technology, Inc

номер детали SST25VF032B
подробное описание детали  32 Mbit SPI Serial Flash
PDF  28 Pages
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производитель  SST [Silicon Storage Technology, Inc]
домашняя страница  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

SST25VF032B датащи(HTML) 13 Page - Silicon Storage Technology, Inc

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Data Sheet
32 Mbit SPI Serial Flash
SST25VF032B
13
©2009 Silicon Storage Technology, Inc.
S71327-03-000
05/09
Sector-Erase
The Sector-Erase instruction clears all bits in the selected 4
KByte sector to FFH. A Sector-Erase instruction applied to
a protected memory area will be ignored. Prior to any Write
operation, the Write-Enable (WREN) instruction must be
executed. CE# must remain active low for the duration of
any command sequence. The Sector-Erase instruction is
initiated by executing an 8-bit command, 20H, followed by
address bits [A23-A0]. Address bits [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.
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 12 for the Sector-Erase sequence.
FIGURE 12: Sector-Erase Sequence
1327 F13.0
CE#
SO
SI
SCK
ADD.
012
34
5
6
7
8
ADD.
20
HIGH IMPEDANCE
15 16
23 24
31
ADD.
MODE 3
MODE 0



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