74AC646_00 FAIRCHILD [Fairchild Semiconductor], 74AC646_00 Datasheet - Page 6

• Manufacturer Part Number: 74AC646_00
• Description: Octal Transceiver/Register with 3-STATE Outputs
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

www.fairchildsemi.com
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
S
H
W
AC Electrical Characteristics for AC
Note 8: Voltage Range 3.3 is 3.3V
AC Operating Requirements for AC
Note 9: Voltage Range 3.3 is 3.3V
Symbol
Symbol
Voltage Range 5.0 is 5.0V
Voltage Range 5.0 is 5.0V
Propagation Delay
Clock to Bus
Propagation Delay
Clock to Bus
Propagation Delay
Bus to Bus
Propagation Delay
Bus to Bus
Propagation Delay
SBA or SAB to A
(w/ A
Propagation Delay
SBA or SAB to A
(w/ A
Enable Time
G to A
Enable Time
G to A
Disable Time
G to A
Disable Time
G to A
Enable Time
DIR to A
Enable Time
DIR to A
Disable Time
DIR to A
Disable Time
DIR to A
Setup Time, HIGH or LOW
Bus to Clock
Hold Time, HIGH or LOW
Bus to Clock
Clock Pulse Width
HIGH or LOW
n
n
n
n
n
n
or B
or B
or B
or B
or B
or B
n
n
n
n
or B
or B
or B
or B
n
n
n
n
n
n
HIGH or LOW)
HIGH or LOW)
n
n
n
n
Parameter
n
n
or B
or B
Parameter
0.3V
0.3V
0.5V
0.5V
n
n
(Note 8)
V
3.3
3.3
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
(V)
5.0
5.0
CC
(Note 9)
V
5.0
5.0
3.3
5.0
(V)
3.3
3.3
CC
6
Min
4.0
2.5
3.0
2.0
1.5
1.5
2.0
1.5
1.5
1.5
2.5
1.5
2.5
1.5
3.0
2.0
2.0
1.5
2.0
1.5
2.5
1.5
2.5
1.5
1.5
1.5
2.5
1.5
T
C
Typ
2.0
2.0
1.5
2.0
A
1.5
0.5
L
T
C
10.5
Typ
7.5
9.5
6.5
7.5
5.0
7.5
5.0
8.5
8.5
6.0
7.0
5.0
7.5
5.5
8.0
6.5
7.5
6.0
6.5
5.0
7.0
5.0
7.5
5.5
7.5
5.5
6.0
A
L
50 pF
25 C
50 pF
25 C
5.0
4.0
3.5
3.5
0.5
0
16.5
12.0
14.5
10.5
12.0
12.5
13.5
10.0
13.5
10.0
11.5
12.5
12.5
10.0
12.0
11.0
11.5
11.5
12.0
Max
8.0
9.0
8.5
9.0
9.5
7.5
8.0
9.5
9.5
Guaranteed Minimum
T
A
T
A
Min
C
3.0
2.0
2.5
1.5
2.0
1.0
1.5
1.0
1.5
1.5
1.5
1.5
2.0
1.5
2.0
1.5
2.5
2.0
2.0
1.5
1.5
1.0
2.0
1.0
1.5
1.5
1.5
1.5
40 C to 85 C
L
C
5.5
4.5
1.0
4.5
40 C to 85 C
L
3.5
0
50 pF
50 pF
Max
18.5
13.0
16.0
11.5
13.5
15.5
11.0
15.0
11.0
12.5
14.0
10.0
13.5
11.0
13.5
10.5
12.0
13.0
12.5
10.0
13.5
10.5
13.5
9.5
9.0
8.5
9.0
9.0
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns