©2011 Silicon Storage Technology, Inc. DS25028A 08/11
22
16 Mbit / 32 Mbit Multi-Purpose Flash Plus
SST39VF1601 / SST39VF3201
SST39VF1602 / SST39VF3202
Not Recommended for New Designs
Microchip Technology Company
Figure 12:Software ID Entry and Read
Figure 13:CFI Query Entry and Read
ADDRESS A
14-0
T
IDA
DQ
15-0
WE#
SW0 SW1 SW2
5555 2AAA 5555 0000 0001
OE#
CE#
Three-Byte Sequence for Software ID Entry
T
WP
T
WPH
T
AA
00BF
Device IDXX55XXAA XX90
Note: Device ID = 234BH for 39VF1601, 234AH for 39VF1602, 235BH for 39VF3201, and 235AH for 39VF3202,
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
1223 F12.1
ADDRESS A
14-0
T
IDA
DQ
15-0
WE#
SW0 SW1 SW2
5555 2AAA 5555
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