Datasheet

©2011 Silicon Storage Technology, Inc. DS25008A 08/11
30
64 Mbit Multi-Purpose Flash Plus
SST39VF6401B / SST39VF6402B
Not Recommended for New Designs
A
Microchip Technology Company
Figure 21:Software ID/CFI Entry Command Flowcharts
1288 F21.0
Load data: XXAAH
Address: 555H
Software Product ID Entry
Command Sequence
Load data: XX55H
Address: 2AAH
Load data: XX90H
Address: 555H
Wait T
IDA
Read Software ID
Load data: XXAAH
Address: 555H
CFI Query Entry
Command Sequence
Load data: XX55H
Address: 2AAH
Load data: XX98H
Address: 555H
Wait T
IDA
Read CFI data
Load data: XXAAH
Address: 555H
Sec ID Query Entry
Command Sequence
Load data: XX55H
Address: 2AAH
Load data: XX88H
Address: 555H
Wait T
IDA
Read Sec ID
X can be V
IL
or V
IH
, but no other value