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DM74AS169A View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
DM74AS169A
Fairchild
Fairchild Semiconductor Fairchild
DM74AS169A Datasheet PDF : 6 Pages
1 2 3 4 5 6
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Conditions
From
To
Min
Max
Units
fMAX
tPLH
tPHL
tPLH
tPHL
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
VCC = 4.5V to 5.5V
RL = 500
CL = 50 pF
Clock
75
RIPPLE Carry
3
Clock
RIPPLE Carry
2
Clock
Any Q
1
Clock
Any Q
2
MHz
16.5
ns
13
ns
7
ns
13
ns
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
En T
RIPPLE Carry 1.5
9
ns
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
En T
RIPPLE Carry 1.5
9
ns
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
U/D
RIPPLE Carry
2
(Note 3)
12
ns
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
U/D
RIPPLE Carry
2
(Note 3)
13
ns
Note 3: Propagation delay time from up/down to ripple carry must be measured with the counter at either a minimum or a maximum count. As the logic level
of the up/down input is changed, the ripple carry output will follow. If the count is minimum (0), the ripple carry output transition will be in phase. If the count is
maximum, the ripple carry output will be out of phase.
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