2 Mbit Page-Mode EEPROM
SST29EE020 / SST29LE020 / SST29VE020
Data Sheet
Software Data Protect Enable
Command Sequence
Software Data Protect
Disable Command Sequence
Write data: AAH
Address: 5555H
Write data: AAH
Address: 5555H
Write data: 55H
Address: 2AAAH
Write data: 55H
Address: 2AAAH
Write data: A0H
Address: 5555H
Write data: 80H
Address: 5555H
Optional Page Load
Operation
Load 0 to
128 Bytes of
page data
Write data: AAH
Address: 5555H
Write data: 55H
Address: 2AAAH
Wait T
BLCO
Write data: 20H
Address: 5555H
Wait T
WC
Wait T
BLCO
SDP Enabled
Wait T
WC
SDP Disabled
307 ILL F16.1
FIGURE 17: SOFTWARE DATA PROTECTION FLOWCHARTS
©2001 Silicon Storage Technology, Inc.
S71062-06-000 6/01 307
20
SST [ SILICON STORAGE TECHNOLOGY, INC ]
