2 Mbit / 4 Mbit / 8 Mbit Multi-Purpose Flash
SST39LF200A / SST39LF400A / SST39LF800A
SST39VF200A / SST39VF400A / SST39VF800A
Data Sheet
CFI Query Entry
Command Sequence
Load data: XXAAH
Address: 5555H
Software ID Entry
Command Sequence
Software ID Exit/CFI Exit
Command Sequence
Load data: XXAAH
Address: 5555H
Load data: XXAAH
Address: 5555H
Load data: XXF0H
Address: XXH
Load data: XX55H
Address: 2AAAH
Load data: XX55H
Address: 2AAAH
Load data: XX55H
Address: 2AAAH
Wait TIDA
Load data: XX98H
Address: 5555H
Load data: XX90H
Address: 5555H
Load data: XXF0H
Address: 5555H
Return to normal
operation
Wait TIDA
Wait TIDA
Wait TIDA
Read CFI data
Read Software ID
Return to normal
operation
Note: X can be VIL or VIH, but no other value.
FIGURE 18: SOFTWARE ID/CFI COMMAND FLOWCHARTS
360 ILL F15.4
©2001 Silicon Storage Technology, Inc.
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