W19B320ATB7L
| Model | W19B320ATB7L |
| Description | Flash, 2MX16, 70ns, PBGA48, 6 X 8 MM, 0.80 MM PITCH, TFBGA-48 |
| PDF file | Total 53 pages (File size: 479K) |
| Chip Manufacturer | WINBOND |
W19B320AT/B
7.5.4
Command Definitions
COMMAND
SEQUENCE
(note 1 )
Read (note 6)
Reset (note 7)
Normal
Program
Unlock Bypass
Unlock Bypass
Program (note 11)
Unlock Bypass Reset
(note12)
Chip Erase
Sector Erase
Erase Suspend
(note 13)
Erase Resume
(note 14)
Manufacturer Word
Code
Byte
AUTOSELECT(note8)
Device
Code
Word
Byte
4
Word
Byte
Word
Byte
Word
Byte
Word
Byte
BUS CYCLES (note 2-5)
CYCLE
1
1
4
3
2
2
6
6
1
1
4
6
FIRST
ADDR
RA
XXX
555
AAA
555
AAA
XXX
BA
555
AAA
555
AAA
BA
BA
555
AAA
555
AAA
555
AAA
AA
DATA
RD
F0
AA
AA
A0
90
AA
AA
B0
30
AA
2AA
555
2AA
555
2AA
555
55
55
(BA)555
(BA)AAA
(BA)555
(BA)AAA
(BA)555
(BA)AAA
90
90
(BA)X00
(BA)X01
(BA)x02
(BA)X03
(BA)X06
82/02
DA
(BA)X0E
(BA)X1C
(BA)X0
F
00/01
(BA)x1E
2AA
555
2AA
555
PA
XXX
2AA
555
2AA
555
55
55
PD
00
55
55
555
AAA
555
AAA
80
80
555
AAA
555
AAA
AA
AA
2AA
555
2AA
555
55
55
555
AAA
SA
10
30
555
AAA
555
AAA
A0
20
PA
PD
SECOND
ADDR
DATA
THIRD
ADDR
DATA
FOURTH
ADDR
DATA
FIFTH
ADDR
SIXTH
DATA ADDR DATA
AA
55
90
7E
0A
Security
Word
Sector Factory
Protect (note Byte
9)
Sector/
Sector
Block
Protect
Verify (note
10)
Word
555
2AA
AA
55
555
2AA
555
2AA
555
(BA)555
90
(BA)AAA
555
AAA
555
AAA
(SA)X02
00/01
(SA)X04
4
Byte
Word
Byte
Word
Byte
Word
Byte
AAA
555
AAA
555
AAA
55
Enter Security
Sector Region
Exit Security
Sector Region
Common Flash
Interface (CFI)
Query (note 15)
3
4
1
AA
AA
55
55
88
90
XXX
00
AA
98
Legend:
X = Don’t Care
RA = Address of the memory location to be read.
PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the #WE or #CE pulse,
whichever happens later.
PD = Data to be programmed at location PA. Data latches on the rising edge of #WE or #CE pulse, whichever happens first.
RD = Data read from location RA during read operation.
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Publication Release Date: December 27, 2005
Revision A4
