12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI6C3Q991, PI6C3Q993
7
PS8449A 10/09/00
n
o
D
2
9
9
Q
3
C
6
P
Q
3
C
6
P
2
9
9
5
9
9
Q
3
C
6
P
Q
3
C
6
P
5
9
9
1
3
9
9
9
9
Q
Q
3
3
C
C
6
P
6
P
s
U
l
b
m
y
S
.
M
.
y
T
.
a
M
.
M
.
y
T
.
a
M
.
M
.
y
T
.
a
M
F
M
O
N
e
n
a
y
c
e
q
e
O
C
V
2
e
a
T
e
2
e
a
T
e
2
e
a
T
e
t
H
W
P
R
H
G
I
H
h
w
e
p
F
E
R
)
1
0
0
0
s
t
L
W
P
R
W
O
L
h
w
e
p
F
E
R
)
1
0
0
0
t
U
t
u
e
m
i
w
e
k
e
a
m
m
a
o
3
e
a
T
e
3
e
a
T
e
3
e
a
T
e
t
R
P
W
E
K
S
)
Q
x
,
Q
x
w
e
k
r
p
e
c
m
t
p
o
o
Z
)
5
0
0
2
1
5
2
1
5
2
s
t
0
W
E
K
S
C
)
p
o
l
w
e
k
t
p
o
o
Z
L
F
p
0
=
)
1
5
2
5
2
5
3
5
7
t
1
W
E
K
S
)
p
o
s
e
m
a
,
w
e
k
t
p
O
)
5
2
0
5
6
7
6
0
t
2
W
E
K
S
)
e
d
e
d
,
e
n
m
o
n
,
w
e
k
t
p
O
)
0
3
2
5
2
0
5
t
3
W
E
K
S
)
p
o
s
t
e
,
w
e
k
t
p
O
)
5
2
0
5
5
7
7
2
t
4
W
E
K
S
)
e
n
e
d
,
e
d
m
o
n
,
w
e
k
t
p
O
)
0
5
0
9
5
0
2
7
t
V
E
D
w
e
k
e
e
d
e
D
)
5
7
5
2
5
6
t
D
P
y
a
d
n
o
a
p
o
B
F
o
p
n
F
E
R
)
5
2
0
5
2
5
0
5
7
0
7
t
V
C
D
O
%
0
5
m
o
n
o
e
c
y
d
t
p
O
)
2
0
2
2
0
2
2
0
2
t
H
W
P
%
0
5
m
o
n
o
e
d
e
m
i
H
G
I
H
t
p
O
)
0
5
0
t
L
W
P
%
0
5
m
o
n
o
e
d
e
m
i
W
O
L
t
p
O
)
1
5
0
5
t
E
S
R
O
e
m
i
e
p
O
)
5
1
0
8
5
1
0
8
5
1
5
5
t
L
L
A
F
O
e
m
i
p
O
)
5
1
0
8
5
1
0
8
5
1
5
5
t
K
C
O
L
e
m
i
k
c
o
L
L
P
)
5
5
5
s
m
t
R
J
r
p
o
e
c
C
)
S
M
R
5
2
0
4
0
4
s
k
a
p
a
P
0
0
2
0
0
2
0
0
2
Table 9. Switching Characteristics Over Operating Range
Notes:
1. All timing tolerances apply for F NOM
≥
25MHz. Guaranteed by design and characterization, not subject to 100%
production testing.
2. Skew is the time between the earliest and the latest output transition among all outputs for which the same t
U
delay
has been selected when all are loaded with the specified load.
3. t
SKEWPR
is the skew between a pair of outputs (xQ0 and xQ1) when all eight outputs are selected for 0t
U
.
4. t
SKEW0
is the skew between outputs when they are selected for 0t
U
.
5. There are 3 classes of outputs: Nominal (multiple of t
U
delay), Inverted (4Q0 and 4Q1 only with 4F0 = 4F1 = HIGH),
and Divided (3Qx and 4Qx only in Divide-by-2 or Divide-by-4 mode).
6. t DEV is the output-to-output skew between any two devices operating under the same conditions (V
CC
, ambient
temperature, air flow, etc.)
7. t
LOCK
is the time that is required before synchronization is achieved. This specification is valid only after V
CC
is
stable and within normal operating limits. This parameter is measured from the application of a new signal or
frequency at REF or FB until t
PD
is within specified limits.
8. t
PD
is measured with REF input rise and fall times (from 0.8V to 2.0V) of 1.0ns.
9. Measured at 2.0V.
10. Measured at 0.8V.
11. Refer to Table12 for more detail.