Datasheet

©2011 Silicon Storage Technology, Inc. DS25008A 08/11
24
64 Mbit Multi-Purpose Flash Plus
SST39VF6401B / SST39VF6402B
Not Recommended for New Designs
A
Microchip Technology Company
Figure 11:Software ID Entry and Read
Figure 12:CFI Query Entry and Read
1288 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 Entr y
T
WP
T
WPH
T
AA
00BF Device IDXX55XXAA XX90
Note: Device ID = 236DH for SST39VF6401B and 236CH for SST39VF6402B
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.
1288 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.