Datasheet

©2011 Silicon Storage Technology, Inc. DS25040A 05/11
10
16 Mbit Multi-Purpose Flash Plus
SST39VF1681 / SST39VF1682
Data Sheet
A
Microchip Technology Company
Operations
Table 5: Operation Modes Selection
Mode CE# OE# WE# DQ Address
Read V
IL
V
IL
V
IH
D
OUT
A
IN
Program V
IL
V
IH
V
IL
D
IN
A
IN
Erase V
IL
V
IH
V
IL
X
1
1. X can be V
IL
or V
IH
, but no other value.
Sector or block address,
XXH for Chip-Erase
Standby V
IH
X X High Z X
Write Inhibit X V
IL
X High Z/ D
OUT
X
XXV
IH
High Z/ D
OUT
X
Product Identification
Software Mode V
IL
V
IL
V
IH
See Table 6
T5.0 25040
Table 6: Software Command Sequence
Command
Sequence
1st Bus
Write Cycle
2nd Bus
Write Cycle
3rd Bus
Write Cycle
4th Bus
Write Cycle
5th Bus
Write Cycle
6th Bus
Write Cycle
Addr
1
1. Address format A
11
-A
0
(Hex).
Addresses A
20
-A
12
can be V
IL
or V
IH
, but no other value, for Command sequence for SST39VF1681/1682.
Data Addr
1
Data Addr
1
Data Addr
1
Data Addr
1
Data Addr
1
Data
Byte-Program
AAAH AAH 555H 55H AAAH A0H BA
2
2. BA = Program Byte Address
Data
Sector-Erase
AAAH AAH 555H 55H AAAH 80H AAAH AAH 555H 55H SA
X
3
3. SA
X
for Sector-Erase; uses A
MS
-A
12
address lines
BA
X
, for Block-Erase; uses A
MS
-A
16
address lines
A
MS
= Most significant address
A
MS
=A
20
for SST39VF1681/1682
50H
Block-Erase
AAAH AAH 555H 55H AAAH 80H AAAH AAH 555H 55H BA
X
3
30H
Chip-Erase
AAAH AAH 555H 55H AAAH 80H AAAH AAH 555H 55H AAAH 10H
Erase-Suspend
XXXXH B0H
Erase-Resume
XXXXH 30H
Query Sec ID
4
AAAH AAH 555H 55H AAAH 88H
User Security ID
Byte-Program
AAAH AAH 555H 55H AAAH A5H BA
5
Data
User Security ID
Program Lock-Out
AAAH AAH 555H 55H AAAH 85H XXH
5
00H
Software ID
Entry
6,7
AAAH AAH 555H 55H AAAH 90H
CFI Query Entry
AAAH AAH 555H 55H AAAH 98H
Software ID Exit
8,9
/CFI Exit/Sec ID
Exit
AAAH AAH 555H 55H AAAH F0H
Software ID Exit
8,9
/CFI Exit/Sec ID
Exit
XXH F0H
T6.1 25040