dm74as651 Fairchild Semiconductor, dm74as651 Datasheet - Page 6

• Manufacturer Part Number: dm74as651
• Description: Octal Bus Transceiver And Register
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
MAX
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
DM74AS652 Switching Characteristics
Note 5: These parameters are measured with the internal output state of the storage register opposite to that of the bus input.
Symbol
Maximum Clock Frequency
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Output Enable Time
to HIGH Level Output
Output Enable Time
to LOW Level Output
Output Disable Time
from HIGH Level Output
Output Disable Time
from LOW Level Output
Output Disable Time
to HIGH Level Output
Output Disable Time
to LOW Level Output
Output Disable Time
from HIGH Level Output
Output Disable Time
from LOW Level Output
Parameter
V
R
C
CC
1
L
R
50 pF
4.5V to 5.5V
2
Conditions
500
6
CBA or CAB
A or B
SBA or SAB
(Note 5)
Enable GBA
Enable GAB
From
A or B
B or A
A or B
A
B
To
Min
90
2
2
2
1
2
2
2
3
2
2
3
3
2
2
Max
8.5
10
16
16
10
11
11
11
9
9
7
9
9
9
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns