SST25VF080B View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

Manufacturer

SST25VF080B

8 Mbit SPI Serial Flash

Silicon Storage Technology 

A Microchip Technology Company

8 Mbit SPI Serial Flash

SST25VF080B

Data Sheet

4-KByte 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. 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 12 for the Sector-

Erase sequence.

CE#

MODE 3

SCK MODE 0

0 1 2345 6 78

15 16

23 24 31

SI

20

ADD. ADD. ADD.

MSB

MSB

SO

HIGH IMPEDANCE

1296 SecErase.0

Figure 12:Sector-Erase Sequence

©2011 Silicon Storage Technology, Inc.

16

S71296-05-000

02/11

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