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DM74LS258B Datenblatt(PDF) 3 Page - Texas Instruments

Teilenummer DM74LS258B
Bauteilbeschribung  TRI-STATE(RM) Quad 2-Data Selectors/Multiplexers
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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DM74LS258B Datenblatt(HTML) 3 Page - Texas Instruments

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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
DM54LS and 54LS
b
55 Cto a125 C
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
DM54LS257B
DM74LS257B
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
45
5
55
475
5
525
V
VIH
High Level Input Voltage
2
2
V
VIL
Low Level Input Voltage
07
08
V
IOH
High Level Output Current
b
1
b
26
mA
IOL
Low Level Output Current
12
24
mA
TA
Free Air Operating Temperature
b
55
125
0
70
C
’LS257B 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 eb18 mA
b
15
V
VOH
High Level Output
VCC e Min IOH e Max
DM54
24
34
V
Voltage
VIL e Max VIH e Min
DM74
24
31
VOL
Low Level Output
VCC e Min IOL e Max
DM54
025
04
Voltage
VIL e Max VIH e Min
DM74
035
05
V
IOL e 12 mA VCC e Min
DM74
025
04
II
Input Current
Max
VCC e Max
Select
02
mA
Input Voltage
VI e 7V
Other
01
IIH
High Level Input
VCC e Max
Select
40
m
A
Current
VI e 27V
Other
20
IIL
Low Level Input
VCC e Max
Select
b
08
mA
Current
VI e 04V
Other
b
04
IOZH
Off-State Output Current
VCC e Max VO e 27V
with High Level Output
VIH e Min VIL e Max
20
m
A
Voltage Applied
IOZL
Off-State Output Current
VCC e Max VO e 04V
with Low Level Output
VIH e Min VIL e Max
b
20
m
A
Voltage Applied
IOS
Short Circuit
VCC e Max
DM54
b
20
b
100
mA
Output Current
(Note 2)
DM74
b
20
b
100
ICCH
Supply Current with
VCC e Max (Note 3)
59
10
mA
Outputs High
ICCL
Supply Current with
VCC e Max (Note 3)
92
16
mA
Outputs Low
ICCZ
Supply Current with
VCC e Max (Note 3)
12
19
mA
Outputs Disabled
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 and the duration should not exceed one second
Note 3
ICC is measured with all outputs open and all possible inputs grounded while achieving the stated output conditions
2


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