$6/9
2SHUDWLQJ PRGHV
Mode
ID read MFR code
ID read device code
Read
Standby
Output disable
Write
Enable sector protect
Sector unprotect
Temporary sector
unprotect
Verify sector protect
†
Verify sector unprotect
†
Hardware Reset
CE
OE
WE
L
L
L
H
L
L
L
L
X
L
L
X
L
L
L
X
H
H
V
ID
V
ID
X
L
L
X
H
H
H
X
H
L
Pulse/L
Pulse/L
X
H
H
X
A0
L
H
A0
X
X
A0
L
L
X
L
L
X
A1
L
L
A1
X
X
A1
H
H
X
H
H
X
A6
L
L
A6
X
X
A6
L
H
X
L
H
X
A9
V
ID
V
ID
A9
X
X
A9
V
ID
V
ID
X
V
ID
V
ID
X
R E SE T
DQ
Code
Code
D
OUT
High Z
High Z
D
IN
X
X
X
Code
Code
High Z
H
H
H
H
H
H
H
H
V
ID
H
H
L
L = Low (<V
IL
) = logic 0; H = High (>V
IH
) = logic 1; V
ID
= 10.0 ± 1.0V; X = don’t care.
In ×16 mode, BYTE = V
IH
. In ×8 mode, BYTE = V
IL
with DQ8-DQ14 in high Z and DQ15 = A-1.
†
Verification of sector protect/unprotect during A9 = V
ID.
9/26/01; V.0.9.9.2
$OOLDQFH 6HPLFRQGXFWRU
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