SST25VF032B View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

Manufacturer

SST25VF032B

32 Mbit SPI Serial Flash

Silicon Storage Technology 

32 Mbit SPI Serial Flash

SST25VF032B

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

Data Sheet

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

©2009 Silicon Storage Technology, Inc.

13

S71327-03-000

05/09

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