W19B320ABT7L
| Model | W19B320ABT7L |
| Description | Flash, 2MX16, 70ns, PDSO48, 12 X 20 MM, TSOP-48 |
| PDF file | Total 53 pages (File size: 479K) |
| Chip Manufacturer | WINBOND |
W19B320AT/B
7. TABLE OF OPERATION MODES
7.1 Device Bus Operations
MODE
Read
Write
Standby
Output Disable
Reset
Sector Protect
Sector Unprotect
Temporary
Sector Unprotect
#CE
L
L
V
DD
±0.3V
L
X
L
L
X
#OE
L
H
X
H
X
H
H
X
#WE
H
L
X
H
X
L
L
X
#RESET
H
H
V
DD
±0.3V
H
L
V
ID
V
ID
V
ID
#WP/ACC
ADDRESSES
DQ0-DQ7
L/H
(Note2)
H
L/H
L/H
L/H
(Note2)
(Note2)
A
IN
A
IN
X
X
X
SA, A6=L,
A1=H, A0=L
SA, A6=H,
A1=H, A0=L
A
IN
D
OUT
D
IN
High-Z
High-Z
High-Z
D
IN
D
IN
D
IN
DQ8-DQ15
#BYTE=V
IH
D
OUT
D
IN
High-Z
High-Z
High-Z
X
X
D
IN
#BYTE =V
IL
DQ8-DQ14
=High-Z,
DQ15=A-1
High-Z
High-Z
High-Z
X
X
High-Z
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, V
ID
= 8.5 ~ 12.5 V, V
HH
= 9.0
±
0.5 V, X = Don’t Care, SA = Sector
Address, A
IN
= Address In, D
IN
= Data In, D
OUT
= Data Out.
Notes:
1.
2.
Addresses are A20:A0 in word mode (#BYTE = V
IH
), A20: A-1 in byte mode (#BYTE = V
IL
).
If #WP/ACC = V
IL
, the two outermost boot sectors remain protected. If #WP/ACC = V
IH
, the two outermost boot sector
protection depends on whether they were last protected or unprotected using the method described in “Sector/Sector
Block Protection and Unprotect ion”. If #WP/ACC = V
HH
, all sectors will be unprotected.
7.2 AUTOSELECT Codes (High Voltage Method)
DESCRIPTION
A20 A11
#CE #OE #WE TO TO
A12 A10
A9
A8
TO
A7
A6
A5
TO
A4
A3
A2
A1
A0
DQ8 TO
DQ15
#BYTE #BYTE
= V
IH
= V
IL
DDh
22h
22h
22h
X
X
X
X
X
X
DQ7
TO DQ0
Manufacturer ID:
Winbond
Device ID:
V
IL
V
IL
V
IL
V
IL
V
IL
V
IL
V
IH
V
IH
V
IH
V
IH
V
IH
BA
BA
BA
BA
SA
X
X
X
X
X
V
ID
V
ID
V
ID
V
ID
V
ID
X
X
X
X
X
V
IL
V
IL
V
IL
V
IL
V
IL
X
X
X
X
X
X
V
IL
V
IH
V
IH
X
X
V
IL
V
IH
V
IH
V
IL
V
IL
V
IL
V
IH
V
IH
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
DAh
7Eh
0Ah
01h(Top)
00h(Bottom)
01h (protected)
00h
(unprotected)
82h
(factory locked)
02h
(not factory
locked)
Read Cycle1
V
IL
Read Cycle2
V
IL
Read Cycle3
V
IL
Sector Protection
Verification
V
IL
Security Indicator
Bit (DQ7)
V
IL
V
IL
V
IH
BA
X
V
ID
X
V
IL
X
X
V
IL
V
IH
V
IH
X
X
Legend:
BA= Bank Address, SA= Sector Address, X= Don't Care.
- 19 -
Publication Release Date: December 27, 2005
Revision A4
