DM74LS164
Absolute Maximum Ratings
(Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0°C to
+70°C
−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” tables will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
f
CLK
t
W
t
SU
t
H
t
REL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Clock Frequency (Note 2)
Pulse Width
(Note 2)
Data Setup Time (Note 2)
Data Hold Time (Note 2)
Clear Release Time (Note 2)
Free Air Operating Temperature
Clock
Clear
0
20
20
17
5
30
0
70
Parameter
Min
4.75
2
0.8
−0.4
8
25
Nom
5
Max
5.25
Units
V
V
V
mA
mA
MHz
ns
ns
ns
ns
°C
Note 2:
T
A
=
25°C and V
CC
=
5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
V
I
V
OH
V
OL
Parameter
Input Clamp Voltage
HIGH Level
Output Voltage
LOW Level
Output Voltage
I
I
I
IH
I
IL
I
OS
I
CC
Input Current @ Max Input Voltage
HIGH Level Input Current
LOW Level Input Current
Short Circuit Output Current
Supply Current
Conditions
V
CC
=
Min, I
I
= −18
mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max, V
IH
=
Min
I
OL
=
4 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max (Note 4)
V
CC
=
Max (Note 5)
−20
16
2.7
3.4
0.35
0.25
0.5
0.4
0.1
20
−0.4
−100
27
mA
µA
mA
mA
mA
Min
Typ
(Note 3)
Max
−1.5
Units
V
V
V
Note 3:
All typicals are at V
CC
=
5V, T
A
=
25°C.
Note 4:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 5:
I
CC
is measured with all outputs OPEN, the SERIAL input grounded, the CLOCK input at 2.4V, and a momentary ground, then 4.5V, applied to the
CLEAR input.
Switching Characteristics
at V
CC
=
5V and T
A
=
25°C
From (Input)
Symbol
f
MAX
t
PLH
t
PHL
t
PHL
Parameter
Maximum Clock Frequency
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Clock to Output
Clock to Output
Clear to Output
To (Output)
C
L
=
15 pF
Min
25
27
32
36
30
40
45
Max
R
L
=
2 kΩ
C
L
=
50 pF
Min
Max
MHz
ns
ns
ns
Units
3
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