Datasheet

©2011 Silicon Storage Technology, Inc. DS25040A 05/11
28
16 Mbit Multi-Purpose Flash Plus
SST39VF1681 / SST39VF1682
Data Sheet
A
Microchip Technology Company
Figure 22:Software ID/CFI Entry Command Flowcharts
1243 F20.0
Load data: AAH
Address: AAAH
Software Product ID Entry
Command Sequence
Load data: 55H
Address: 555H
Load data: 90H
Address: 5555H
Wait T
IDA
Read Software ID
Load data: AAH
Address: AAAH
CFI Query Entry
Command Sequence
Load data: 55H
Address: 555H
Load data: 98H
Address: AAAH
Wait T
IDA
Read CFI data
Load data: AAH
Address: AAAH
Sec ID Query Entry
Command Sequence
Load data: 55H
Address: 555H
Load data: 88H
Address: AAAH
Wait T
IDA
Read Sec ID
X can be V
IL
or V
IH
, but no other value