Datasheet

18
Data Sheet
32 Mbit Multi-Purpose Flash Plus
SST39VF3201B / SST39VF3202B
©2009 Silicon Storage Technology, Inc. S71384-01-000 1/09
FIGURE 13: Software ID Entry and Read
FIGURE 14: CFI Query Entry and Read
1384 F11.0
ADDRESS A
14-0
T
IDA
DQ
15-0
WE#
SW0 SW1 SW2
555 2AA 555 0000 0001
OE#
CE#
Three-Byte Sequence for Software ID Entry
T
WP
T
WPH
T
AA
00BF
Device ID
XX55XXAA XX90
Note: Device ID = 235DH for SST39VF3201B and 235CH for SST39VF3202B
WP# must be held in proper logic state (V
IL
or V
IH
) 1 µs prior to and 1 µs after the command sequence.
X can be V
IL
or V
IH,
but no other value.
1384 F12.0
ADDRESS A
14-0
T
IDA
DQ
15-0
WE#
SW0 SW1 SW2
555 2AA 555
OE#
CE#
Three-Byte Sequence for CFI Query Entry
T
WP
T
WPH
T
AA
XX55XXAA XX98
Note: WP# must be held in proper logic state (V
IL
or V
IH
) 1 µs prior to and 1 µs after the command sequence.
X can be V
IL
or V
IH,
but no other value.