w19b320b Winbond Electronics Corp America, w19b320b Datasheet - Page 21

• Manufacturer Part Number: w19b320b
• Description: W19b320bt/b Datasheet
• Manufacturer: Winbond Electronics Corp America

7. TABLE OF OPERATION MODES
7.1
Legend:
Address, A
Notes:
Read
Write
Standby
Output Disable
Reset
Sector Protect
Sector Unprotect
Temporary
Sector Unprotect
1.
2.
MODE
Device Bus Operations
L = Logic Low = V
Addresses are A20:A0 in word mode (#BYTE = V
If #WP/ACC = V
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
IN
= Address In, D
±0.3V
#CE
V
X
L
L
L
L
L
X
DD
IL
, the two outermost boot sectors remain protected. If #WP/ACC = V
IL
IN
, H = Logic High = V
= Data In, D
#OE
H
X
H
X
H
H
X
L
#WE
H
X
H
X
X
L
L
L
OUT
= Data Out.
V
#RESET
IH
DD
, V
V
V
V
H
H
H
±0.3V
L
ID
ID
ID
ID
= 8.5 ~ 11.5 V, V
IH
), A20: A-1 in byte mode (#BYTE = V
#WP/ACC ADDRESSES DQ0-DQ7
- 21 -
W19B320BT/B DATASHEET
(Note2)
(Note2)
(Note2)
HH
L/H
L/H
L/H
L/H
, all sectors will be unprotected.
H
HH
SA, A6=L,
A1=H, A0=L
SA, A6=H,
A1=H, A0=L
= 9.0 ± 0.5 V, X = Don’t Care, SA = Sector
A
A
A
X
X
X
IN
IN
IN
Publication Release Date:Dec. 25, 2007
High-Z
High-Z
High-Z
D
D
D
D
D
OUT
IN
IN
IN
IN
IH
, the two outermost boot sector
IL
).
#BYTE=V
High-Z
High-Z
High-Z
D
D
D
OUT
X
X
IN
IN
DQ8-DQ15
IH
Revisionv A3
#BYTE =V
DQ8-DQ14
DQ15=A-1
=High-Z,
High-Z
High-Z
High-Z
High-Z
X
X
IL