4 Mbit SPI Serial Flash
SST25VF040B
Data Sheet
Check for Flash Busy Status to load next valid command
CE#
0
16
40
48
8
24
8
16
24
8
8
16
0
8
0
8
16
32
0
0
0
24
SCK
D
D
n
WRDI
RDSR
A
n-1
SI
W
AD
A
A
D0
AD
D2
D3
AD
D1
REN
Last 2
Data Bytes
WRDI to exit
AAI Mode
Load AAI command, Address, 2 bytes data
D
SO
OUT
Output Status
Register Data
Note: Valid commands during AAI programming: AAI command, Read Status Register command, or WRDI command
1295 AAI.SW.0
FIGURE 11: Auto Address Increment (AAI) Word-Program Sequence with
Software End-of-Write Detection
©2007 Silicon Storage Technology, Inc.
S71295-02-000
7/07
14
SST [ SILICON STORAGE TECHNOLOGY, INC ]
