SST49LF040 datasheet(44/48 Pages) SST

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Advance Information

4 Mbit LPC Flash

SST49LF040

S71213-00-000

11/01 562

FIGURE 38: ERASE COMMAND SEQUENCE (PP MODE)

562 ILL F38.0

Write data: AAH

Address: 5555H

Chip-Erase

Command Sequence

Write data: 55H

Address: 2AAAH

Write data: 80H

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 10H

Address: 5555H

Write data: AAH

Address: 5555H

Wait TSCE

Chip erased

to FFH

Write data: AAH

Address: 5555H

Sector-Erase

Command Sequence

Write data: 55H

Address: 2AAAH

Write data: 80H

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 30H

Address: SAX

Write data: AAH

Address: 5555H

Wait TSE

Sector erased

to FFH

Write data: AAH

Address: 5555H

Block-Erase

Command Sequence

Write data: 55H

Address: 2AAAH

Write data: 80H

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 50H

Address: BAX

Write data: AAH

Address: 5555H

Wait TBE

Block erased

to FFH

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