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DM74LS174 • DM74LS175
DM74LS175 Recommended Operating Conditions
Note 8: C
L
= 15 pF, R
L
= 2 kΩ, T
A
= 25°C and V
CC
= 5V.
Note 9: C
L
= 50 pF, R
L
= 2 kΩ, T
A
= 25°C and V
CC
= 5V.
Note 10: T
A
= 25°C and V
CC
= 5V.
DM74LS175 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 11: All typicals are at V
CC
= 5V, T
A
= 25°C.
Note 12: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 13: With all outputs OPEN and 4.5V applied to all data and clear inputs, I
CC
is measured after a momentary ground, then 4.5V applied to the clock
input.
DM74LS175 Switching Characteristics
at V
CC
= 5V and T
A
= 25°C (See Section 1 for Test Waveforms and Output Load)
Symbol Parameter Min Nom Max Units
V
CC
Supply Voltage 4.75 5 5.25 V
V
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
I
OH
HIGH Level Output Current −0.4 mA
I
OL
LOW Level Output Current 8 mA
f
CLK
Clock Frequency (Note 8) 0 30 MHz
f
CLK
Clock Frequency (Note 9) 0 25 MHz
t
W
Pulse Width Clock 20
ns
(Note 10) Clear 20
t
SU
Data Setup Time (Note 10) 20 ns
t
H
Data Hold Time (Note 10) 0 ns
t
REL
Clear Release Time (Note 10) 25 ns
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 11)
V
I
Input Clamp Voltage V
CC
= Min, I
I
= −18 mA −1.5 V
V
OH
HIGH Level V
CC
= Min, I
OH
= Max
2.7 3.4 V
Output Voltage V
IL
= Max, V
IH
= Min
V
OL
LOW Level V
CC
= Min, I
OL
= Max
0.35 0.5
Output Voltage V
IL
= Max, V
IH
= Min V
I
OL
= 4 mA, V
CC
= Min 0.25 0.4
I
I
Input Current @ Max Input Voltage V
CC
= Max, V
I
= 7V 0.1 mA
I
IH
HIGH Level Input Current V
CC
= Max, V
I
= 2.7V 20 µA
I
IL
LOW Level V
CC
= Max Clock −0.4
Input Current V
I
= 0.4V Clear −0.4 mA
Data −0.36
I
OS
Short Circuit Output Current V
CC
= Max (Note 12) −20 −100 mA
I
CC
Supply Current V
CC
= Max (Note 13) 11 18 mA
From (Input)
R
L
= 2 kΩ
Symbol Parameter To (Output)
C
L
= 15 pF C
L
= 50 pF
Units
Min Max Min Max
f
MAX
Maximum Clock Frequency 30 25 MHz
t
PLH
Propagation Delay Time
Clock to Q or Q 30 32 ns
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
Clock to Q or Q 30 36 ns
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
Clear to Q 25 29 ns
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
Clear to Q 35 42 ns
HIGH-to-LOW Level Output
