DM74LS191M Просмотр технического описания (PDF) - Fairchild Semiconductor
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DM74LS191M Datasheet PDF : 6 Pages
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Absolute Maximum Ratings(Note 1)
Storage Temperature Range
Input Voltage
Operating Free Air Temp. Range
Supply Voltage
−65°C to +150°C
7V
0°C to +70°C
7V
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
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)
tW
Pulse Width
(Note 2)
tSU
Data Setup Time (Note 2)
tH
Data Hold Time (Note 2)
tEN
Enable Time to Clock (Note 2)
TA
Free Air Operating Temperature
Note 2: TA = 25°C and VCC = 5V.
Min Nom
4.75
5
2
0
Clock
25
Load
35
20
0
30
0
DC Electrical Characteristics
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VOH
HIGH Level Output
VCC = Min, II = − 18 mA
VCC = Min, IOH = Max
Mil
2.5
Voltage
VIL = Max, VIH = Min
VOL
LOW Level Output
VCC = Min, IOL = Max
Voltage
VIL = Max, VIH = Min
IOL = 4 mA, VCC = Min
II
Input Current @ Max
VCC = Max
Input Voltage
VI = 7V
IIH
HIGH Level Input
VCC = Max
Current
VI = 2.7V
IIL
LOW Level Input
VCC = Max
Current
VI = 0.4V
IOS
Short Circuit
VCC = Max
Output Current
(Note 4)
Com
2.7
Enable
Others
Enable
Others
Enable
Others
Mil
−20
Com
−20
ICC
Supply Current
VCC = Max (Note 5)
Note 3: All typicals are at VCC = 5V, TA = 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: ICC is measured with all inputs grounded and all outputs open.
Typ
(Note 3)
3.4
3.4
0.25
0.35
0.25
20
Max
5.25
0.8
−0.4
8
20
70
Max
−1.5
0.4
0.5
0.4
0.3
0.1
60
20
−1.08
−0.4
−100
−100
35
Units
V
V
V
mA
mA
MHz
ns
ns
ns
ns
°C
Units
V
V
V
mA
µA
mA
mA
mA
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