SST49LF004B-33-4C-EI SST [Silicon Storage Technology, Inc], SST49LF004B-33-4C-EI Datasheet - Page 22

• Manufacturer Part Number: SST49LF004B-33-4C-EI
• Description: 4 Mbit LPC Firmware Flash
• Manufacturer: SST [Silicon Storage Technology, Inc]

Data Sheet
SOFTWARE COMMAND SEQUENCE
TABLE 13: S
©2003 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 valid memory address range, see Address
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.
out of range section for details. In PP mode, YYYY can be V
SST49LF004B Device ID = 60H, is read with A
8
8
X
X
for Sector-Erase Address
for Block-Erase Address
6
OFTWARE
XXXX XXXXH
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
Cycle
1st
2
1
C
OMMAND
Data
AAH
AAH
AAH
AAH
AAH
AAH
F0H
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
Addr
S
EQUENCE
Cycle
2nd
2
1
18
-A
18
Data
55H
55H
55H
55H
55H
55H
-A
0
= 0.
1
= 0, A
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
0
Cycle
IL
= 1.
3rd
2
or V
22
1
IH
Data
, but no other value.
A0H
80H
80H
80H
90H
F0H
YYYY 5555H
YYYY 5555H
YYYY 5555H
Addr
PA
Read ID
Cycle
3
4th
2
1
7
Data
Data
AAH
AAH
AAH
4 Mbit LPC Firmware Flash
YYYY 2AAAH
YYYY 2AAAH
YYYY 2AAAH
Addr
Cycle
5th
2
1
Data
55H
55H
55H
SST49LF004B
S71232-02-000
YYYY 5555H
Addr
SA
BA
X
X
Cycle
4
5
6th
2
T13.0 1232
1
Data
30H
50H
10H
12/03