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參數(shù)資料
| 型號(hào)： | 74ACQ464ASPC |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quiet Series⑩ Octal Transceiver/Register with 3-STATE Outputs |
| 中文描述： | 安靜系列⑩八路收發(fā)器/ 3注冊(cè)態(tài)輸出 |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 97K |
| 代理商： | 74ACQ464ASPC |
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AC Electrical Characteristics for ACTQ
Note 17:
Voltage Range 5.0 is 5.0V
±
0.5V
Note 18:
Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs within the same packaged device.
The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (t
OSHL
) or LOW-to-HIGH (t
OSLH
). Parameter guaranteed by
design. Not tested.
AC Operating Requirements for ACTQ
Note 19:
Voltage Range 5.0 is 5.0V
±
0.5V
Capacitance
V
CC
T
=
+
25
°
C
C
L
=
50 pF
Typ
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF
Min
Symbol
Parameter
(V)
Units
(Note 17)
Min
Max
Max
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay
Clock to Bus
5.0
2.5
8.5
10.5
2.5
11.0
ns
Propagation Delay
Bus to Bus
Propagation Delay
5.0
2.0
8.0
10.0
2.0
10.5
ns
SBA or SAB to A
n
or B
n
(w/A
n
or B
n
HIGH or LOW)
Enable Time
5.0
2.5
8.5
10.5
2.5
11.0
ns
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PZH
t
PZL
t
PHZ
t
PLZ
t
OSHL
t
OSLH
5.0
2.5
10.0
12.0
2.5
12.5
ns
G to A
n
or B
n
Disable Time
G to A
n
or B
n
Enable Time
DIR to A
n
or B
n
Disable Time
5.0
1.0
7.0
8.5
1.0
9.0
ns
5.0
2.5
10.0
12.0
2.5
12.5
ns
5.0
1.0
7.0
8.5
1.0
9.0
ns
DIR to A
n
or B
n
Output to Output
Skew (Note 18) Select to Bus
5.0
0.5
1.0
1.0
ns
or Clock to Bus
Output to Output
Skew (Note 18)
t
OSHL
t
OSLH
5.0
1.0
1.5
1.5
ns
Bus to Bus
V
CC
T
A
=
+
25
°
C
C
L
=
50 pF
Typ
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF
Guaranteed Minimum
Symbol
Parameter
(V)
Units
(Note 19)
t
S
Setup Time, HIGH or LOW
Bus to Clock
Hold Time, HIGH or LOW
5.0
3.0
3.0
ns
t
H
5.0
1.5
1.5
ns
Bus to Clock
Clock Pulse Width
HIGH or LOW
t
W
5.0
4.0
4.0
ns
Symbol
Parameter
Typ
4.5
Units
pF
Conditions
C
IN
C
I/O
C
PD
Input Capacitance
V
CC
=
OPEN
V
CC
=
5.0V
V
CC
=
5.0V
Input/Output Capacitance
Power Dissipation Capacitance
15.0
90.0
pF
pF
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