DM74ALS169BN Ver la hoja de datos (PDF) - Fairchild Semiconductor
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DM74ALS169BN Datasheet PDF : 7 Pages
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Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C
Symbol
Parameter
Conditions
Min
Typ
VIK
Input Clamp Voltage
VOH
HIGH Level
Output Voltage
VOL
LOW Level
Output Voltage
VCC = 4.5V, II = −18 mA
IOH = −0.4 mA
VCC = 4.5V to 5.5V
VCC = 4.5V
IOL = 8 mA
VCC − 2
0.35
II
Input Current @ Max
Input Voltage
VCC = 5.5V, VIH = 7V
IIH
HIGH Level Input Current
IIL
LOW Level Input Current
IO
Output Drive Current
ICC
Supply Current
VCC = 5.5V, VIH = 2.7V
VCC = 5.5V, VIL = 0.4V
VCC = 5.5V, VO = 2.25V
VCC = 5.5V
−30
15
Max
−1.5
Units
V
V
0.5
V
0.1
mA
20
µA
−0.2
mA
−112
mA
25
mA
Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
Conditions
fMAX
Maximum Clock Frequency
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
VCC = 4.5V to 5.5V
RL = 500Ω
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
CL = 50 pF
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
From
Clock
To
Min
40
Ripple Carry
3
Clock
Ripple Carry
6
Clock
Any Q
2
Clock
Any Q
5
Max
Units
MHz
20
ns
20
ns
15
ns
20
ns
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
En T
Ripple Carry
2
13
ns
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
En T
Ripple Carry
3
16
ns
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
U/D (Note 3) Ripple Carry
5
19
ns
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
U/D (Note 3) Ripple Carry
5
19
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.
5
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