參數(shù)資料
型號: 74AC646
廠商: Fairchild Semiconductor Corporation
英文描述: Octal Transceiver/Register with 3-STATE Outputs
中文描述: 八路收發(fā)器/ 3注冊態(tài)輸出
文件頁數(shù): 6/10頁
文件大小: 72K
代理商: 74AC646
www.fairchildsemi.com
6
7
AC Electrical Characteristics for AC
(Continued)
Note 8:
Voltage Range 3.3 is 3.3V
±
0.3V
Voltage Range 5.0 is 5.0V
±
0.5V
AC Operating Requirements for AC
Note 9:
Voltage Range 3.3 is 3.3V
±
0.3V
Voltage Range 5.0 is 5.0V
±
0.5V
V
CC
T
A
=
+
25
°
C
T
A
=
40
°
C to
+
85
°
C
Symbol
Parameter
(V)
C
L
=
50 pF
C
L
=
50 pF
Units
(Note 8)
Min
Typ
Max
Min
Max
t
PZL
Enable Time
3.3
2.5
7.5
12.5
2.0
14.0
ns
G to A
n
or B
n
5.0
1.5
5.5
9.0
1.5
10.0
t
PHZ
Disable Time
3.3
3.0
8.0
12.5
2.5
13.5
ns
G to A
n
or B
n
5.0
2.0
6.5
10.0
2.0
11.0
t
PLZ
Disable Time
3.3
2.0
7.5
12.0
2.0
13.5
ns
G to A
n
or B
n
5.0
1.5
6.0
9.5
1.5
10.5
t
PZH
Enable Time
3.3
2.0
6.5
11.0
1.5
12.0
ns
DIR to A
n
or B
n
5.0
1.5
5.0
7.5
1.0
8.5
t
PZL
Enable Time
3.3
2.5
7.0
11.5
2.0
13.0
ns
DIR to A
n
or B
n
5.0
1.5
5.0
8.0
1.0
9.0
t
PHZ
Disable Time
3.3
2.5
7.5
11.5
1.5
12.5
ns
DIR to A
n
or B
n
5.0
1.5
5.5
9.5
1.5
10.0
t
PLZ
Disable Time
3.3
1.5
7.5
12.0
1.5
13.5
ns
DIR to A
n
or B
n
5.0
1.5
5.5
9.5
1.5
10.5
V
CC
T
A
=
+
25
°
C
C
L
=
50 pF
Typ
2.0
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF
Guaranteed Minimum
Symbol
Parameter
(V)
Units
(Note 9)
3.3
t
S
Setup Time, HIGH or LOW
5.0
5.5
ns
Bus to Clock
Hold Time, HIGH or LOW
Bus to Clock
5.0
3.3
5.0
1.5
1.5
0.5
2.0
2.0
4.0
0
0.5
4.5
0
1.0
t
H
ns
t
W
Clock Pulse Width
HIGH or LOW
3.3
5.0
3.5
3.5
4.5
3.5
ns
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PDF描述
74ACT646 ECONOLINE: RBM - New Micro Size SIP 6 Package- Industry Standard Pinout- 3kVDC Isolation- UL94V-0 Package Material- Efficiency to 85%
74AC648 Octal Transceiver/Register with 3-STATE Outputs
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