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DM74LS377
Absolute Maximum Ratings(Note 1)
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.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2: All typicals are at V
CC
= 5V, T
A
= 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
V
CC
= +5.0V, T
A
= +25°C
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range −65°C to +150°C
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
T
A
Free Air Operating Temperature 0 70 °C
t
S
(H) Setup Time HIGH or LOW 10
ns
t
S
(L) D
n
to CP 10
t
H
(H) Hold Time HIGH or LOW 5.0
ns
t
H
(L) D
n
to CP 5.0
t
S
(H) Setup Time HIGH or LOW 10
ns
t
S
(L) E to CP 20
t
H
(H) Hold Time HIGH or LOW 5.0
ns
t
H
(L) E to CP 5.0
t
W
(H) CP Pulse Width HIGH or LOW 20
ns
t
W
(L) 20
Symbol Parameter Conditions Min
Typ
Max Units
(Note 2)
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
OL
LOW Level V
CC
= Min, I
OL
= Max
0.35 0.5
Output Voltage V
IH
= Min V
I
OL
= 4 mA, V
CC
= Min 0.25 0.4
I
I
Input Current @ Max V
CC
= Max, V
I
= 7V
0.1 mA
Input Voltage V
I
= 10V
I
IH
HIGH Level Input Current V
CC
= Max, V
I
= 2.7V 20.0 µA
I
IL
LOW Level Input Current V
CC
= Max, V
I
= 0.4V −0.4 mA
I
OS
Short Circuit Output Current V
CC
= Max (Note 3) −20 −100 mA
I
CC
Supply Current V
CC
= Max 28 mA
Symbol Parameter
R
L
= 2 kΩ, C
L
= 15 pF
Units
Min Max
f
MAX
Maximum Clock Frequency 30 MHz
t
PLH
Propagation Delay 25
ns
t
PHL
CP to Q
n
25
