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DM74LS293M Scheda tecnica(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte DM74LS293M
Spiegazioni elettronici  4-Bit Binary Counter
PDF  6 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM74LS293M Scheda tecnica(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note)
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM74LS
0 Cto a70 C
Storage Temperature Range
b
65 Cto a150 C
Note
The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ‘‘Electrical Characteristics’’
table 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
DM74LS293
Units
Min
Nom
Max
VCC
Supply Voltage
475
5
525
V
VIH
High Level Input Voltage
2
V
VIL
Low Level Input Voltage
08
V
IOH
High Level Output Current
b
04
mA
IOL
Low Level Output Current
8
mA
fCLK
Clock Frequency
A to QA
032
MHz
(Note 1)
BtoQB
016
fCLK
Clock Frequency
A to QA
020
MHz
(Note 2)
BtoQB
010
tW
Pulse Width
A
15
(Note 6)
B30
ns
Reset
15
tREL
Reset Release Time (Note 6)
25
ns
TA
Free Air Operating Temperature
0
70
C
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 3)
VI
Input Clamp Voltage
VCC e Min II eb18 mA
b
15
V
VOH
High Level Output
VCC e Min IOH e Max
27
34
V
Voltage
VIL e Max VIH e Min
VOL
Low Level Output
VCC e Min IOL e Max
035
05
V
Voltage
VIL e Max VIH e Min
IOL e 4 mA VCC e Min
025
04
II
Input Current
Max
VCC e Max
Reset
01
Input Voltage
VI e 7V
A
02
mA
B
02
IIH
High Level Input
VCC e Max
Reset
20
Current
VI e 27V
A40
m
A
B40
IIL
Low Level Input
VCC e Max
Reset
b
04
Current
VI e 04V
A
b
24
mA
B
b
16
IOS
Short Circuit
VCC e Max
b
20
b
100
mA
Output Current
(Note 4)
ICC
Supply Current
VCC e Max (Note 5)
9
15
mA
2



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