參數(shù)資料
型號(hào)： 39SF020
廠商： Silicon Storage Technology, Inc.
元件分類(lèi)： FLASH
英文描述： 64 Mbit (x16) Multi-Purpose Flash Plus
中文描述： 64兆位（x16）的多功能閃存
文件頁(yè)數(shù)： 6/23頁(yè)
文件大?。?/td> 231K
代理商： 39SF020
6
1998 Silicon Storage Technology, Inc.
326-10 12/98
2 Megabit Multi-Purpose Flash
SST39SF020
Preliminary Specifications
T
ABLE
4: S
OFTWARE
C
OMMAND
S
EQUENCE
Command
Sequence
1st Bus
Write Cycle
Addr
(1)
Data
5555H
5555H
5555H
XXH
5555H
2nd Bus
Write Cycle
Addr
(1)
2AAAH
2AAAH
2AAAH
2AAAH
3rd Bus
Write Cycle
Addr
(1)
5555H
5555H
5555H
5555H
4th Bus
Write Cycle
Addr
(1)
BA
(3)
5555H
5555H
5th Bus
Write Cycle
Addr
(1)
6th Bus
Write Cycle
Addr
(1)
Data
Data
55H
55H
55H
55H
Data
A0H
80H
80H
90H
Data
Data
AAH
AAH
Data
Byte Program
Sector Erase
Chip Erase
Software ID Entry
Software ID Exit
Software ID Exit
AAH
AAH
AAH
AAH
F0H
AAH
2AAAH
2AAAH
55H
55H
SA
x
(2)
5555H
30H
10H
2AAAH
55H
5555H
F0H
Notes:
(1)
Address format A
14
-A
0
(Hex), Addresses A
15,
A
16
and A
17
are a “Don’t Care” for the
Command sequence.
(2)
SA
x
for sector erase; uses A
17
-A
12
address lines
(3)
BA = Program Byte address
(4)
Both Software ID Exit operations are equivalent
Notes for Software ID Entry Command Sequence
1. With A
17
-A
1
=0; SST Manufacturer Code = BFH, is read with A
0
= 0,
SST39SF020 Device Code = B6H, is read with A
0
= 1.
2. The device does not remain in Software Product ID Mode if powered down.
326 PGM T4.0
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