Datasheet

©2011 Silicon Storage Technology, Inc. DS-25015A 04/11
26
64 Mbit (x16) Advanced Multi-Purpose Flash Plus
SST38VF6401 / SST38VF6402 / SST38VF6403 / SST38VF6404
Data Sheet
A
Microchip Technology Company
Global Lock of NVPBs
Global Lock of
NVPBs Entry
555H AAH 2AAH 55H 555H 50H
Set Global Lock
Bit
XXH A0H XXH 00H
Global Lock
Bit Status
Read
3
XXXH Data
16
Global Lock of
NVPBs Exit
XXH 90H XXH 00H
Password Commands
Password Com-
mands Mode
Entry
555H AAH 2AAH 55H 555H 60H
Password Pro-
gram
20
XXH A0H PWA
X
PWDx
Password
Read
3
PWA
X
PWD
X
Submit Pass-
word
21
00H 25H 00H 03H 00H PWD
0
01H PWD
1
02H PWD
2
03H PWD
3
00H 29H
Password Com-
mands Mode
Exit
XXH 90H XXH 00H
Program and Settings Register (PSR)
PSR Entry 555H AAH 2AAH 55H 555H 40H
PSR Program
22
XXH A0H XXXH Data
PSR Read
3
XXH Data
PSR Exit XXH 90H XXH 00H
CFI
CFI Query Entry
23
55H 98H
SST CFI Query
Entry
23
555H AAH 2AAH 55H 555H 98H
Software ID Exit
/CFI Exit/SEC
ID Exit
9
555H AAH 2AAH 55H 555H F0H
Software ID
Exit/CFI Exit/
SEC ID Exit
9
XXH F0H
Irreversible Block Lock
Irreversible
Block Lock
24
555H AAH 2AAH 55H 555H 87H XXH 00H
T11.0 25015
1. Address format A
10
-A
0
(Hex). Addresses A
11
-A
21
can be V
IL
or V
IH,
but no other value, for the SST38VF6401/6402/
6403/6404 command sequence.
2. DQ
15
-DQ
8
can be V
IL
or V
IH
, but no other value, for command sequence
3. All read commands are in Bold Italics.
Table 11:Software Command Sequence (Continued) (3 of 3)
Command
Sequence
1st Bus
Cycle
2nd Bus
Cycle
3rd Bus
Cycle
4th Bus
Cycle
5th Bus
Cycle
6th Bus
Cycle
7th Bus
Cycle
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2
Addr
1
Data
2