SST25VF040B-50-4I-QAF SILICON STORAGE TECHNOLOGY, SST25VF040B-50-4I-QAF Datasheet - Page 13

• Manufacturer Part Number: SST25VF040B-50-4I-QAF
• Description: 4M FLASH MEMORY, SPI EEPROM, WSON-8
• Manufacturer: SILICON STORAGE TECHNOLOGY

Specifications of SST25VF040B-50-4I-QAF

• Memory Size: 4Mbit
• Clock Frequency: 50MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: WSON
• No. Of Pins: 8
• Svhc: No SVHC (18-Jun-2010)
• Device: RoHS Compliant
• Package / Case: WSON
• Memory Type: Flash
• Memory Configuration: 512K X 8
• Interface Type: Serial, SPI
• Rohs Compliant: Yes

4 Mbit SPI Serial Flash
SST25VF040B
©2006 Silicon Storage Technology, Inc.
SCK
CE#
SO
FIGURE 9: A
FIGURE 10: A
SCK
CE#
SI
SO
SI
2
MODE 3
MODE 0
MODE 3
MODE 0
0
Note:
Load AAI command, Address, 2 bytes data
Note:
0
AD
Load AAI command, Address, 2 bytes data
AD
7 8
H
S
7 8
UTO
UTO
OFTWARE
ARDWARE
1. Valid commands during AAI programming: AAI command or WRDI command
1. Valid commands during AAI programming: AAI command or WRDI command
2. User must configure the SO pin to output Flash Busy status during AAI programming
A
A
15 16
15 16
A
A
DDRESS
DDRESS
A
A
23 24 31
23 24 31
E
E
ND
ND
A
A
-
I
-
I
OF
NCREMENT
OF
NCREMENT
32
32
-W
-W
D0
D0
39
39
RITE
RITE
40
40
D1
D1
D
47 48
D
47 48
(AAI) W
(AAI) W
ETECTION
ETECTION
Check for Flash Busy Status to load next valid
0
0
AD
AD
ORD
ORD
7 8
7 8
-P
-P
13
D2
D2
register to load next valid
ROGRAM
Wait T
ROGRAM
15 16
15 16
D3
D3
BP
23 24
23 24
or poll Software Status
S
S
EQUENCE WITH
EQUENCE WITH
0
0
AD
AD
1
7 8
7 8
command
Data Bytes
Data Bytes
Last 2
Last 2
D
D
n-1
n-1
15 16
15 16
1
command
D
D
23 24
n
23 24
n
WDRI to exit
WDRI to exit
AAI Mode
AAI Mode
0
0
WRDI
WRDI
Software Status register
7
Software Status register
to load any command
7
to load any command
S71295-01-000
Wait T
1295 AAI.SW.0
Wait T
0
RDSR
1295 AAI.HW.0
0
RDSR
BP
7 8
BP
Data Sheet
7 8
or poll
or poll
D
D
OUT
OUT
15
15
1/06