26
Rev. 5.2/May 01
HY29F400
AC CHARACTERISTICS
Word/Byte Configuration (BYTE#)
r
e
t
m
a
r
a
P
C
E
D
E
J
d
t
S
t
L
F
L
E
C
t
H
F
L
E
C
t
Z
Q
L
F
Y
B
t
V
Q
H
F
Y
B
n
o
p
c
s
e
D
n
o
p
0
7
O
-
5
5
d
e
5
e
5
p
-
S
t
U
5
4
-
0
9
-
w
h
o
L
g
p
O
p
O
g
g
n
n
w
o
L
g
c
w
S
w
S
g
g
#
#
E
E
n
c
w
S
c
w
S
T
T
Y
Y
B
B
o
o
E
E
#
#
T
T
E
E
x
x
x
a
a
a
n
M
M
M
M
s
s
s
s
n
n
n
n
c
Z
e
-
g
v
A
t
t
o
o
h
#
#
5
5
1
4
5
5
1
5
0
0
2
7
0
0
2
9
n
Data Output DQ[14:0]
Data Output DQ[7:0]
Data Output DQ[7:0]
Data Output DQ[14:0]
Output DQ[15]
Address Input A-1
Address Input A-1
Data Output DQ[15]
t
ELFL
t
ELFH
t
FHQV
t
FLQZ
CE#
OE#
BYTE#
DQ[14:0]
DQ[15]/A-1
BYTE#
DQ[14:0]
DQ[15]/A-1
BYTE#
switching
from word to
byte mode
BYTE#
switching
from byte to
word mode
Figure 15. BYTE# Timings for Read Operations
Figure 16. BYTE# Timings for Write Operations
t
SET
(t
AS
)
t
HOLD
(t
AH
)
Falling edge of the last WE# signal
CE#
WE#
BYTE#
Note:
Refer to the Program/Erase Operations table for t
AS
and t
AH
specifications.