HY29LV160 Hynix Semiconductor, HY29LV160 Datasheet - Page 43

• Manufacturer Part Number: HY29LV160
• Description: 16 Mbit (2M x 8/1M x 16) Low Voltage Flash Memory
• Manufacturer: Hynix Semiconductor

AC CHARACTERISTICS
Sector Protection and Unprotection Using Programming Equipment
Notes:
1. Not 100% tested.
Rev. 1.2/May 01
J
E
A[19:12] = Sector to Protect
P
D
CE# = A[6] = A]0] = V
a
RESET# = A[1] = V
E
a r
C
Set TRYCNT = 1
A9 = OE# = V
m
Set Address:
APPLY V
WE# = V
Wait 4 us
t e
START
t
t
t
t
S
t
r e
W
O
W
V
t
t
C
O
S
D I
E
d t
P
P
S
T
E
S
P
P
P
R
P
1
2
C C
IL
ID
O
O
C
W
W
V
V
IH
Figure A1. Sector Protection Using Programming Equipment
l o
l o
E
IL
u
E
i r
i r
p t
#
a t
a t
#
e t
e t
t u
S
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S
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P
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e
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E
u
u
u t
u t
T
S
s l
s l
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a
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T
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T
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e l
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t i s
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d i
d i
T
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e
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WE# = RESET# = A[1] = V
A[19:12] = Sector to Protect
n
o t
o t
O
e
T
f
f
u
r o
r o
W
W
m i
D
p t
OE# = CE# = V
A[6] = A[0] = V
Protect Another
E
Data = 0x01?
E
e
S
S
e
Wait 150 us
t u
Read Data
A[9] = V
#
Wait 4 us
s
#
e
e
Sector?
1
c
t c
t c
D
A
A
i r
l e
r o
r o
i t c
i t c
t p
YES
YES
y a
e v
ID
e v
U
o i
P
n
IL
n
o r
IL
1
1
p
o r
e t
e t
N O
N O
t c
IH
t c
O
O
p
r e
p
r e
t a
Increment TRYCNT
DEVICE FAILURE
t a
o i
TRYCNT = 25?
n
o i
n
N O
YES
M
M
M
M
M
M
M
x a
n i
n i
n i
n i
n i
n i
-
3
7
0
0
S
p
-
3
e
8
0
e
0
d
5
1
1
Write Reset Command
4
4
4
Remove V
0
5
SECTOR PROTECT
O
5
0
0
-
3
t p
9
COMPLETE
5
0
o i
HY29LV160
n
ID
-
from A[9]
5
1
0
2
U
m
s n
s µ
s n
s µ
s µ
s µ
n
s
t i
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