HY29F400A Hynix Semiconductor, HY29F400A Datasheet - Page 31

• Manufacturer Part Number: HY29F400A
• Description: 4 Megabit (512Kx8/256Kx16) 5 Volt-only Flash Memory
• Manufacturer: Hynix Semiconductor

AC CHARACTERISTICS
Notes:
1. The system may use CE# or OE# to toggle DQ[2] and DQ[6]. DQ[2] toggles only when read at an address within an
Sector Protect and Unprotect, Temporary Sector Unprotect
Rev. 1.0/Jan. 02
Notes:
1. Not 100% tested.
J
DQ[6]
DQ[2]
RESET#
WE#
E
erase-suspended sector.
RY/BY#
P
D
a
E
0 or 5V
WE#
a r
CE#
C
m
V
ID
t e
Enter Automatic
t
t
t
t
t
S
t
t
W
W
O
r e
V
t
t
t
t
V
R
C
C
O
VIDR
S
E
L
D I
P
P
d t
S
S
T
E
E
H
S
P
P
P
P
R
T
P
2
1
Erase
V
R
C
O
V
V
O
C
e T
W
W
o
E
D I
D I
h
u
E
E
r
r
m
a t l
p i
p t
e t i
e t i
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#
#
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T
p
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a r
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g
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o
P
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e
T
n
n
t
a r
t e
t e
a n
E
RSP
#
i s
i s
l u
l u
S
a n
p u
p u
Figure 22. Temporary Sector Unprotect Timings
y r
o i t
o i t
e s
e s
b
S
t e
e l
t e
b
S
p u
n
n
i T
i T
W
W
e l
Erase
e
p u
o t
i T
i T
m
m
t c
d i
d i
Figure 21. DQ[2] and DQ[6] Operation
i T
o t
m
m
e
e
O
r o
i T
h t
h t
m
e
e
u
O
o t
o t
m
e
U
p t
f
f
f
f
u
r o
r o
r o
r o
Suspend
e
W
W
D
p n
p t
t u
Erase
f
e
t u
e T
S
S
S
E
E
r o
o r
D
s
e
e
e
#
#
c
m
e t
e
D
t c
t c
t c
A
A
i r
a l
p
Suspend
e
t c
r o
r o
r o
t p
i t c
i t c
o
Erase
y
a l
Read
a r
y
P
o i
U
e v
e v
P
y r
o r
p n
n
o r
1
1
e t
S
o r
e t
e
t c
e t
Enter Erase
t c
t c
Suspend
a
Program
t c
r o
d n
U
U
p n
p n
o r
o r
e t
e t
t c
t c
1
Suspend
Program
1
Erase
M
M
M
M
M
M
M
M
M
M
a
a
n i
n i
n i
n i
n i
n i
n i
n i
x
x
Suspend
-
Erase
Read
5
2
5
0
5
0
S
Resume
Erase
p
t
-
VIDR
5
2
e
5
5
5
e
5
5
5
d
1
1
4
4
4
4
0
0
0
0
Erase
O
0
0
0
0
-
7
3
t p
7
0
0
0
o i
HY29F400A
n
0 or 5V
-
9
3
9
0
5
Complete
0
Erase
U
m
s µ
s µ
s n
s n
s n
s n
s µ
s µ
s µ
n
s
t i
31