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DM74LS377 Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. DM74LS377
Description  Octal D-Type Flip-Flop with Common Enable and Clock
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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www.fairchildsemi.com
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 VCC = 5V, TA = 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
VCC = +5.0V, TA = +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
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−0.4
mA
IOL
LOW Level Output Current
8
mA
TA
Free Air Operating Temperature
0
70
°C
tS (H)
Setup Time HIGH or LOW
10
ns
tS (L)
Dn to CP
10
tH (H)
Hold Time HIGH or LOW
5.0
ns
tH (L)
Dn to CP
5.0
tS (H)
Setup Time HIGH or LOW
10
ns
tS (L)
E to CP
20
tH (H)
Hold Time HIGH or LOW
5.0
ns
tH (L)
E to CP
5.0
tW (H)
CP Pulse Width HIGH or LOW
20
ns
tW (L)
20
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max
2.7
3.4
V
Output Voltage
VIL = Max
VOL
LOW Level
VCC = Min, IOL = Max
0.35
0.5
Output Voltage
VIH = Min
V
IOL = 4 mA, VCC = Min
0.25
0.4
II
Input Current @ Max
VCC = Max, VI = 7V
0.1
mA
Input Voltage
VI = 10V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
20.0
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
−0.4
mA
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−20
−100
mA
ICC
Supply Current
VCC = Max
28
mA
Symbol
Parameter
RL = 2 kΩ, CL = 15 pF
Units
Min
Max
fMAX
Maximum Clock Frequency
30
MHz
tPLH
Propagation Delay
25
ns
tPHL
CP to Qn
25




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