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參數(shù)資料
| 型號： | 74FR74SCX |
| 英文描述： | Dual D-Type Flip-Flop |
| 中文描述： | 雙D型觸發(fā)器 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 79K |
| 代理商： | 74FR74SCX |
www.fairchildsemi.com
6
7
AC Electrical Characteristics
74FR1074
Note 5:
Pin-to-Pin Skew is defined as the absolute value of the difference between the actual propagation delay for any outputs within the same packaged
device. The specifications apply to any outputs switching in the same direction either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
) or in opposite directions
both HL and LH (t
OST
). t
OST
is guaranteed by design.
AC Operating Requirements
74FR1074
Note 6:
This specification is guaranteed by design.
Symbol
Parameter
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Typ
160
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
120
Units
Min
120
Max
Max
f
MAX
t
PLH
t
PHL
t
PLH
t
PHL
t
OSHL
(Note 5)
Maximum Clock Frequency
MHz
Propagation Delay
CP
n
to Q
n
or Q
n
Propagation Delay
2.5
3.0
1.5
4.0
5.0
3.5
5.5
6.5
5.5
2.5
3.0
1.5
5.5
6.5
5.5
ns
ns
C
Dn
or S
Dn
to Q
n
or Q
n
Pin to Pin Skew
for HL Transitions
2.0
5.5
7.0
2.0
7.0
1.5
ns
t
OSLH
(Note 5)
Pin to Pin Skew
for LH Transitions
1.5
ns
t
OST
(Note 5)
Pin to Pin Skew
for HL/LH Transitions
3.5
ns
t
Q/Q
(Note 5)
True/Complement
Output Skew
2.0
ns
t
PS
(Note 5)
Pin (Signal)
Transition Variation
2.0
ns
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
2.0
2.0
0
T
A
=
0
°
C
=
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
2.0
2.0
0
Symbol
Parameter
Units
Max
Max
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
Setup Time, HIGH or LOW
D
n
to CP
n
Hold Time, HIGH or LOW
ns
ns
D
n
to CP
n
0
0
t
W
(H)
t
W
(L)
(Note 6)
CP
n
Pulse Width
HIGH or LOW
3.3
3.3
3.3
3.3
ns
t
W
(L)
t
REC
S
Dn
or C
Dn
Pulse Width
Recovery Time
S
Dn
or C
Dn
to CP
n
4.0
4.0
ns
2.0
2.0
ns
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