Datasheet

©2011 Silicon Storage Technology, Inc. DS25086A 11/11
20
8 Mbit LPC Flash
SST49LF080A
Data Sheet
A
Microchip Technology Company
Software Command Sequence
Table 11:Software Command Sequence
Command
Sequence
1st
1
Cycle
1. LPC mode use consecutive Write cycles to complete a command sequence; PP mode use consecutive bus cycles to
complete a command sequence.
2nd
1
Cycle
3rd
1
Cycle
4th
1
Cycle
5th
1
Cycle
6th
1
Cycle
Addr
2
2. YYYY = A[31:16]. In LPC mode, during SDP command sequence, YYYY must be within memory address range speci-
fied in Table 4. In PP mode, YYYY can be V
IL
or V
IH
, but no other value.
Data Addr
2
Data Addr
2
Data Addr
2
Data Addr
2
Data Addr
2
Data
Byte-Program
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
A0H PA
3
3. PA = Program Byte address
Data
Sector-Erase
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
80H YYYY 5555
H
AAH YYYY 2AAA
H
55H SA
X
4
4. SA
X
for Sector-Erase Address
30H
Block-Erase
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
80H YYYY 5555
H
AAH YYYY 2AAA
H
55H BA
X
5
5. BA
X
for Block-Erase Address
50H
Chip-Erase
6
6. Chip-Erase is supported in PP mode only
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
80H YYYY 5555
H
AAH YYYY 2AAA
H
55H YYYY 5555
H
10H
Software
ID Entry
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
90H Read ID
7
7. SST Manufacturer’s ID = BFH, is read with A
0
=0.
With A
19
-A
1
= 0; SST49LF080A Device ID = 5BH, is read with A
0
=1.
Software
ID Exit
8
8. Both Software ID Exit operations are equivalent
XXXX XXXXH F0H
Software
ID Exit
8
YYYY 5555H AAH YYYY 2AAA
H
55H YYYY 5555
H
F0H
T11.0 25026