©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
©2011 Silicon Storage Technology, Inc. DS25040A 05/11
11
16 Mbit Multi-Purpose Flash Plus
SST39VF1681 / SST39VF1682
Data Sheet
A
Microchip Technology Company
4. With A
MS
-A
5
= 0; Sec ID is read with A
4
-A
0
,
SST ID is read with A
4
= 0 (Address range = 00000H to 0000FH),
User ID is read with A
4
= 1 (Address range = 00010H to 0001FH).
Lock Status is read with A
7
-A
0
= 0000FFH. Unlocked: DQ
3
= 1 / Locked: DQ
3
=0.
5. Valid Byte Addresses for Sec ID are from 000000H-00000FH and 000020H-00002FH.
6. The device does not remain in Software Product ID Mode if powered down.
7. With A
MS
-A
1
=0; SST Manufacturer ID = 00BFH, is read with A
0
=0,
SST39VF1681 Device ID = C8H, is read with A
0
=1,
SST39VF1682 Device ID = C9H, is read with A
0
=1,
A
MS
= Most significant address
A
MS
=A
20
for SST39VF1681/1682
8. Both Software ID Exit operations are equivalent
9. If users never lock after programming, Sec ID can be programmed over the previously unprogrammed bits (data=1)
using the Sec ID mode again (the programmed “0” bits cannot be reversed to “1”).
Table 7: CFI Query Identification String
1
1. Refer to CFI publication 100 for more details.
Address Data Data
10H 51H Query Unique ASCII string “QRY”
11H 52H
12H 59H
13H 01H Primary OEM command set
14H 07H
15H 00H Address for Primary Extended Table
16H 00H
17H 00H Alternate OEM command set (00H = none exists)
18H 00H
19H 00H Address for Alternate OEM extended Table (00H = none exits)
1AH 00H
T7.1 25040
Table 8: System Interface Information
Address Data Data
1BH 27H V
DD
Min (Program/Erase)
DQ
7
-DQ
4
: Volts, DQ
3
-DQ
0
: 100 millivolts
1CH 36H V
DD
Max (Program/Erase)
DQ
7
-DQ
4
: Volts, DQ
3
-DQ
0
: 100 millivolts
1DH 00H V
PP
min. (00H = no V
PP
pin)
1EH 00H V
PP
max. (00H = no V
PP
pin)
1FH 03H Typical time out for Byte-Program 2
N
µs (2
3
= 8 µs)
20H 00H Typical time out for min. size buffer program 2
N
µs (00H = not supported)
21H 04H Typical time out for individual Sector/Block-Erase 2
N
ms (2
4
=16ms)
22H 05H Typical time out for Chip-Erase 2
N
ms (2
5
=32ms)
23H 01H Maximum time out for Byte-Program 2
N
times typical (2
1
x2
3
=1s)
24H 00H Maximum time out for buffer program 2
N
times typical
25H 01H Maximum time out for individual Sector/Block-Erase 2
N
times typical (2
1
x2
4
=32ms)
26H 01H Maximum time out for Chip-Erase 2
N
times typical (2
1
x2
5
=64ms)
T8.1 25040
©2011 Silicon Storage Technology, Inc. DS25040A 05/11
12
16 Mbit Multi-Purpose Flash Plus
SST39VF1681 / SST39VF1682
Data Sheet
A
Microchip Technology Company
Table 9: Device Geometry Information
Address Data Data
27H 15H Device size = 2
N
Bytes (15H = 21; 2
21
= 2 MByte)
28H 00H Flash Device Interface description; 00H = x8-only asynchronous interface
29H 00H
2AH 00H Maximum number of byte in multi-byte write = 2
N
(00H = not supported)
2BH 00H
2CH 02H Number of Erase Sector/Block sizes supported by device
2DH FFH Sector Information (y+1=Number of sectors; z x 256B = sector size)
2EH 01H y=511+1=512sectors (01FF = 511
2FH 10H
30H 00H z = 16 x 256 Bytes = 4 KByte/sector (0010H = 16)
31H 1FH Block Information (y+1=Number of blocks; z x 256B = block size)
32H 00H y=31+1=32blocks(1F=31)
33H 00H
34H 01H z = 256 x 256 Bytes = 64 KByte/block (0100H = 256)
T9.1 25040

SST39VF1682-70-4I-EKE

Mfr. #:
Manufacturer:
Microchip Technology
Description:
NOR Flash 2.7 to 3.6V 16Mbit Multi-Purpose Flash
Lifecycle:
New from this manufacturer.
Delivery:
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