W19B320STB9G
| Model | W19B320STB9G |
| Description | Flash, 2MX16, 90ns, PBGA48, TFBGA-48 |
| PDF file | Total 52 pages (File size: 2M) |
| Chip Manufacturer | WINBOND |
W19B(L)320ST/B
7.4 Command Definitions
COMMAND SEQUENCE
(NOTE 1)
Read (note 6)
Reset (note 7)
Normal Program
Unlock Bypass
Word
Byte
Word
Byte
BUS CYCLES (NOTE 2-5)
CYCLE
1
1
4
3
2
2
6
6
1
1
4
4
4
FIRST
ADDR
RA
XXX
555
AAA
555
AAA
XXX
XXX
555
AAA
555
AAA
XXX
XXX
555
AAA
555
AAA
555
AAA
AA
DATA
RD
F0
AA
AA
A0
90
AA
AA
B0
30
AA
AA
2AA
555
2AA
555
2AA
555
55
55
55
555
AAA
55
AAA
555
AAA
90
90
90
X00
X01
X02
X03
X06
99/19
DA
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
DATA
SIXTH
ADDR
DATA
Unlock Bypass Program
(Note 11)
Unlock Bypass
(note12)
Chip Erase
Sector Erase
Reset
Word
Byte
Word
Byte
Erase Suspend (note 13)
Erase Resume (note 14)
Manufacturer
Code
AUTOSELECT(note8)
Device Code
Word
Byte
Word
Byte
(note 16)
Security Sector Word
Factory Protect
Byte
(Note 9)
Sector/Secto
r Block
Protect
Verify (note
10)
Word
555
2AA
AA
55
555
2AA
555
2AA
555
555
90
AAA
555
AAA
555
AAA
X02
00/01
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)
Legend:
3
4
1
AA
AA
55
55
88
90
XXX
00
AA
98
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.
SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A20-A12 uniquely select any sector.
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Publication Release Date: March 23, 2004
Revision A2
