8 Mbit / 16 Mbit Multi-Purpose Flash
SST39LF080 / SST39LF016 / SST39VF080 / SST39VF016
Data Sheet
TABLE 4: 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
Addr1 Data Addr1 Data Addr1 Data Addr1 Data Addr1 Data Addr1 Data
5555H AAH 2AAAH 55H 5555H A0H Data
WA2
Byte-Program
Sector-Erase
3
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H
SAX
BAX
30H
50H
3
Block-Erase
Chip-Erase
5555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 10H
5555H AAH 2AAAH 55H 5555H 90H
Software ID Entry4,5
CFI Query Entry4
5555H AAH 2AAAH 55H 5555H 98H
Software ID Exit6/
CFI Exit
XXH
F0H
Software ID Exit6/
CFI Exit
5555H AAH 2AAAH 55H 5555H F0H
T4.3 396
1. Address format A14-A0 (Hex),
Addresses A15 - A19 can be VIL or VIH, but no other value, for the Command sequence for SST39LF/VF080.
Addresses A15 - A20 can be VIL or VIH, but no other value, for the Command sequence for SST39LF/VF016.
2. WA = Program Byte address
3. SAX for Sector-Erase; uses AMS-A12 address lines
BAX, for Block-Erase; uses AMS-A16 address lines
AMS = Most significant address
AMS = A19 for SST39LF/VF080 and A20 for SST39LF/VF016
4. The device does not remain in Software Product ID Mode if powered down.
5. With AMS-A1 =0; SST Manufacturer’s ID= BFH, is read with A0 = 0,
SST39LF/VF080 Device ID = D8H, is read with A0 = 1
SST39LF/VF016 Device ID = D9H, is read with A0 = 1
6. Both Software ID Exit operations are equivalent
1
TABLE 5: CFI QUERY IDENTIFICATION STRING FOR SST39LF/VF080 AND SST39LF/VF016
Address
10H
11H
12H
13H
14H
15H
16H
17H
Data
51H
52H
59H
01H
07H
00H
00H
00H
00H
00H
00H
Data
Query Unique ASCII string “QRY”
Primary OEM command set
Address for Primary Extended Table
Alternate OEM command set (00H = none exists)
Address for Alternate OEM extended Table (00H = none exits)
18H
19H
1AH
T5.3 396
1. Refer to CFI publication 100 for more details.
©2001 Silicon Storage Technology, Inc.
S71146-03-000 6/01 396
7
SST [ SILICON STORAGE TECHNOLOGY, INC ]
