Datasheet

Data Sheet
32 Mbit Multi-Purpose Flash Plus
SST39VF3201B / SST39VF3202B
9
©2009 Silicon Storage Technology, Inc. S71384-01-000 1/09
TABLE 6: Software Command Sequence
Command
Sequence
1st Bus
Write Cycle
2nd Bus
Write Cycle
3rd Bus
Write Cycle
4th Bus
Write Cycle
5th Bus
Write Cycle
6th Bus
Write Cycle
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Word-Program
555H AAH 2AAH 55H 555H A0H WA
3
Data
Sector-Erase
555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA
X
4
50H
Block-Erase
555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H BA
X
4
30H
Chip-Erase
555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H
Erase-Suspend
XXXXH B0H
Erase-Resume
XXXXH 30H
Query Sec ID
5
555H AAH 2AAH 55H 555H 88H
User Security ID
Word-Program
555H AAH 2AAH 55H 555H A5H WA
6
Data
User Security ID
Program Lock-Out
555H AAH 2AAH 55H 555H 85H XXH
6
0000H
Software ID Entry
7,8
555H AAH 2AAH 55H 555H 90H
CFI Query Entry
555H AAH 2AAH 55H 555H 98H
CFI Query Entry
55H 98H
Software ID Exit
9,10
/CFI Exit/Sec ID Exit
555H AAH 2AAH 55H 555H F0H
Software ID Exit
9,10
/CFI Exit/Sec ID Exit
XXH F0H
T6.0 1384
1. Address format A
10
-A
0
(Hex).
Addresses A
11
- A
20
can be V
IL
or V
IH,
but no other value, for Command sequence for SST39VF320xB.
2. DQ
15
-DQ
8
can be V
IL
or V
IH
, but no other value, for Command sequence
3. WA = Program Word address
4. SA
X
for Sector-Erase; uses A
MS
-A
11
address lines
BA
X
, for Block-Erase; uses A
MS
-A
15
address lines
A
MS
= Most significant address
A
MS
= A
20
for SST39VF320xB
5. With A
MS
-A
4
= 0; Sec ID is read with A
3
-A
0
,
SST ID is read with A
3
= 0 (Address range = 000000H to 000007H),
User ID is read with A
3
= 1 (Address range = 000008H to 000087H).
Lock Status is read with A
7
-A
0
= 0000FFH. Unlocked: DQ
3
= 1 / Locked: DQ
3
= 0.
6. Valid Word-Addresses for Sec ID are from 000000H-000007H and 000008H to 000087H.
7. The device does not remain in Software Product ID Mode if powered down.
8. With A
MS
-A
1
=0; SST Manufacturer ID = 00BFH, is read with A
0
= 0,
SST39VF3201B Device ID = 235DH, is read with A
0
= 1,
SST39VF3202B Device ID = 235CH, is read with A
0
= 1.
A
MS
= Most significant address
A
MS
= A
20
for SST39VF320xB
9. Both Software ID Exit operations are equivalent
10. If users never lock after programming, Sec ID can be programmed over the previously unprogrammed bits (data=1) using the Sec ID
mode again (the programmed “0” bits cannot be reversed to “1”). Valid Word-Addresses for Sec ID are from 000000H-000007H and
000008H to 000087H.