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54121FMQB Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza 54121FMQB
Descripción Electrónicos  One-Shot with Clear and Complementary Outputs
Download  6 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

54121FMQB Datasheet(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
55V
Operating Free Air Temperature Range
DM54
b
55 Cto a125 C
DM74
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
DM54121
DM74121
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
45
5
55
475
5
525
V
VTa
Positive-Going Input Threshold
14
2
14
2
V
Voltage at the A Input (VCC e Min)
VTb
Negative-Going Input Threshold
08
14
08
14
V
Voltage at the A Input (VCC e Min)
VTa
Positive-Going Input Threshold
15
2
15
2
V
Voltage at the B Input (VCC e Min)
VTb
Negative-Going Input Threshold
08
13
08
13
V
Voltage at the B Input (VCC e Min)
IOH
High Level Output Current
b
04
b
04
mA
IOL
Low Level Output Current
16
16
mA
tW
Input Pulse Width (Note 1)
40
40
ns
dVdt
Rate of Rise or Fall of
1
1
Vs
Schmidt Input (B) (Note 1)
dVdt
Rate of Rise or Fall of
11
V ms
Logic Input (A) (Note 1)
REXT
External Timing Resistor (Note 1)
14
30
14
40
kX
CEXT
External Timing Capacitance (Note 1)
0
1000
0
1000
m
F
DC
Duty Cycle (Note 1)
RT e 2kX
67
67
%
RT e REXT (Max)
90
90
TA
Free Air Operating Temperature
b
55
125
0
70
C
Note 1
TA e 25 C and VCC e 5V
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
VI
Input Clamp Voltage
VCC e Min II eb12 mA
b
15
V
VOH
High Level Output
VCC e Min IOH e Max
24
34
V
Voltage
VIL e Max VIH e Min
VOL
Low Level Output
VCC e Min IOL e Max
02
04
V
Voltage
VIH e Min VIL e Max
II
Input Current
Max
VCC e Max VI e 55V
1mA
Input Voltage
IIH
High Level Input
VCC e Max
A1 A2
40
m
A
Current
VI e 24V
B80
IIL
Low Level Input
VCC e Max
A1 A2
b
16
mA
Current
VI e 04V
B
b
32
IOS
Short Circuit
VCC e Max
DM54
b
20
b
55
mA
Output Current
(Note 2)
DM74
b
18
b
55
ICC
Supply Current
VCC e Max
Quiescent
13
25
mA
Triggered
23
40
Note 1
All typicals are at VCC e 5V TA e 25 C
Note 2
Not more than one output should be shorted at a time
2


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