SST25VF032B-66-4I-QAE View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
SST25VF032B-66-4I-QAE Datasheet PDF : 33 Pages
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A Microchip Technology Company
32 Mbit SPI Serial Flash
SST25VF032B
Data Sheet
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 com-
mand sequence. The Sector-Erase instruction is initiated by executing an 8-bit command, 20H, fol-
lowed 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.
CE#
SCK
MODE 3
MODE 0
012 345 6 78
15 16 23 24 31
SI
SO
Figure 12:Sector-Erase Sequence
20
ADD. ADD. ADD.
HIGH IMPEDANCE
1327 F13.0
©2011 Silicon Storage Technology, Inc.
15
DS25071A
12/11
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