SST49LF020A-33-4C-NHE SST [Silicon Storage Technology, Inc], SST49LF020A-33-4C-NHE Datasheet - Page 20

• Manufacturer Part Number: SST49LF020A-33-4C-NHE
• Description: 2 Mbit LPC Flash
• Manufacturer: SST [Silicon Storage Technology, Inc]

Data Sheet
SOFTWARE COMMAND SEQUENCE
TABLE 11: Software Command Sequence
©2006 Silicon Storage Technology, Inc.
Byte-Program
Sector-Erase
Block-Erase
Chip-Erase
Software
ID Entry
Software
ID Exit
Software
ID Exit
Command
Sequence
1. LPC mode use consecutive Write cycles to complete a command sequence; PP mode use consecutive bus cycles to complete a
2. YYYY = A[31:16]. In LPC mode, during SDP command sequence, YYYY must be within memory address range specified in Table 4.
3. PA = Program Byte address
4. SA
5. BA
6. Chip-Erase is supported in PP mode only
7. SST Manufacturer’s ID = BFH, is read with A
8. Both Software ID Exit operations are equivalent
command sequence.
In PP mode, YYYY can be V
With A
8
8
X
X
for Sector-Erase Address
for Block-Erase Address
17
6
-A
1
XXXX XXXXH
= 0; SST49LF020A Device ID = 52H, is read with A
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
Cycle
1st
2
1
Data
AAH
AAH
AAH
AAH
AAH
AAH
F0H
IL
or V
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
IH
Addr
, but no other value.
Cycle
2nd
2
1
0
= 0.
Data
55H
55H
55H
55H
55H
55H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
Cycle
3rd
2
20
0
1
= 1.
Data
A0H
80H
80H
80H
90H
F0H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
PA
Cycle
Read ID
3
4th
2
1
7
Data
Data
AAH
AAH
AAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
Addr
Cycle
5th
2
2 Mbit LPC Flash
1
Data
55H
55H
55H
SST49LF020A
S71206-08-000
YYYY 5555H
Addr
SA
BA
Cycle
X
X
4
5
6th
2
T11.1 1206
1
Data
30H
50H
10H
5/06