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參數(shù)資料
| 型號(hào)： | 74FR573SCX |
| 英文描述： | 8-Bit D-Type Latch |
| 中文描述： | 8位D型鎖存器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 59K |
| 代理商： | 74FR573SCX |
www.fairchildsemi.com
4
7
AC Electrical Characteristics
AC Operating Requirements
Extended AC Electrical Characteristics
Note 3:
This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase,
i.e., all LOW-to-HIGH, HIGH-to-LOW, 3-STATE-to-HIGH, etc.
Note 4:
These specifications guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load. This specification pertains to single output switching only.
Note 5:
Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specifi-
cation applies to any outputs switching HIGH-to-LOW, (t
OSHL
), LOW-to-HIGH, (t
OSLH
), or HIGH-to-LOW and/or LOW-to-HIGH, (t
OST
). Specifications guaran-
teed with all outputs switching in phase.
Symbol
Parameter
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Typ
3.0
2.6
5.7
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
1.3
1.3
2.3
Units
Min
1.3
1.3
2.3
Max
4.7
4.7
8.5
Max
4.7
4.7
8.5
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
A
n
to B
n
or B
n
to A
n
Propagation Delay
ns
ns
LEAB to B, LEBA to A
Output Enable Time
2.3
2.3
2.3
4.0
4.3
4.9
8.5
7.4
7.4
2.3
2.3
2.3
8.5
7.4
7.4
ns
Output Disable Time
1.6
1.6
3.9
3.5
7.0
7.0
1.6
1.6
7.0
7.0
ns
Symbol
Parameter
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Typ
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
2.5
Units
Min
2.5
Max
Max
t
S
(H)
t
S
(L)
t
H
(H)
t
H
(L)
t
W
(H)
Setup Time, HIGH or LOW
0.5
ns
D
n
to LE
Hold Time, HIGH or LOW
D
n
to LE
LE Pulse Width HIGH
2.5
2.0
2.0
0.1
0.0
0.6
3.6
2.5
2.0
2.0
ns
6.0
6.0
ns
Symbol
Parameter
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Eight Outputs Switching
(Note 3)
Min
1.3
1.3
2.3
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
250 pF
(Note 4)
Units
Max
6.3
6.3
10.2
Min
3.2
3.2
4.2
Max
8.7
8.7
12.8
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
OSHL
(Note 5)
t
OSLH
(Note 5)
Propagation Delay
A
n
to B
n
or B
n
to A
n
Propagation Delay
ns
ns
LEAB to B, LEBA to A
Output Enable Time
2.3
2.3
2.3
10.2
11.1
11.1
4.2
12.8
ns
Output Disable Time
1.6
1.6
7.2
7.2
1.2
ns
Pin-to-Pin Skew
ns
for HL Transitions
Pin-to-Pin Skew
for LH Transitions
1.0
ns
t
OST
(Note 5)
Pin-to-Pin Skew
for HL/LH Transitions
3.1
ns
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