4 Mbit Multi-Purpose Flash
SST39WF400A
Data Sheet
THREE-BYTE SEQUENCE FOR
SOFTWARE ID ENTRY
ADDRESS A14-0
5555
2AAA
5555
0000
0001
CE#
OE#
TWP
WE#
TWPH
DQ15-0
XXAA
SW0
XX55
SW1
XX90
SW2
TAA
00BF
Device ID
1220 F11.1
TIDA
Note:
Device ID = 272FH for SST39WF400A
X can be V
IL
or V
IH,
but no other value.
FIGURE 11: S
OFTWARE
ID E
NTRY AND
R
EAD
THREE-BYTE SEQUENCE FOR
CFI QUERY ENTRY
ADDRESS A14-0
5555
2AAA
5555
CE#
OE#
TWP
WE#
TWPH
DQ15-0
XXAA
SW0
XX55
SW1
XX98
SW2
1220 F12.1
TIDA
TAA
Note:
X can be V
IL
or V
IH,
but no other value.
FIGURE 12: CFI Q
UERY
E
NTRY AND
R
EAD
漏2004 Silicon Storage Technology, Inc.
S71220-05-000
6/04
16