Datasheet

©2011 Silicon Storage Technology, Inc. DS25028A 08/11
27
16 Mbit / 32 Mbit Multi-Purpose Flash Plus
SST39VF1601 / SST39VF3201
SST39VF1602 / SST39VF3202
Not Recommended for New Designs
A
Microchip Technology Company
Figure 22:Software ID/CFI Entry Command Flowcharts
1223 F21.0
Load data: XXAAH
Address: 5555H
Software Product ID Entry
Command Sequence
Load data: XX55H
Address: 2AAAH
Load data: XX90H
Address: 5555H
Wait T
IDA
Read Software ID
Load data: XXAAH
Address: 5555H
CFI Query Entry
Command Sequence
Load data: XX55H
Address: 2AAAH
Load data: XX98H
Address: 5555H
Wait T
IDA
Read CFI data
Load data: XXAAH
Address: 5555H
Sec ID Query Entry
Command Sequence
Load data: XX55H
Address: 2AAAH
Load data: XX88H
Address: 5555H
Wait T
IDA
Read Sec ID
X can be V
IL
or V
IH
, but no other value