DM74LS174N View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
DM74LS174N Datasheet PDF : 7 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
DM74LS174 Recommended Operating Conditions
Symbol
Parameter
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
IOL
LOW Level Output Current
fCLK
Clock Frequency (Note 2)
fCLK
Clock Frequency (Note 3)
tW
Pulse Width
Clock
(Note 4)
Clear
tSU
Data Setup Time (Note 4)
tH
Data Hold Time (Note 4)
tREL
Clear Release Time (Note 4)
TA
Free Air Operating Temperature
Note 2: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Note 3: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V.
Note 4: TA = 25°C and VCC = 5V.
Min
Nom
Max
Units
4.75
5
5.25
V
2
V
0.8
V
−0.4
mA
8
mA
0
30
MHz
0
25
MHz
20
ns
20
20
ns
0
ns
25
ns
0
70
°C
DM74LS174 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Typ
Min
Max
(Note 5)
Units
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
VOH
HIGH Level
VCC = Min, IOH = Max
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
Output Voltage
VIL = Max, VIH = Min
IOL = 4 mA, VCC = Min
II
Input Current @ Max Input Voltage VCC = Max, VI = 7V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL
LOW Level
VCC = Max
Input Current
VI = 0.4V
Clock
Clear
Data
−1.5
V
2.7
3.4
V
0.35
0.5
V
0.25
0.4
0.1
mA
20
µA
−0.4
−0.4
mA
−0.36
IOS
Short Circuit Output Current
ICC
Supply Current
Note 5: All typicals are at VCC = 5V, TA = 25°C.
VCC = Max (Note 6)
VCC = Max (Note 7)
−20
−100
mA
16
26
mA
Note 6: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 7: With all outputs OPEN and 4.5V applied to all data and clear inputs, ICC is measured after a momentary ground, then 4.5V applied to the clock.
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