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DM54S257 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM54S257
Description  TRI-STATE QUAD 1 OF 2 DATA SELECTORS / MULTIPLEXERS
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM54S257 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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’S257 Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 280X
Symbol
Parameter
To (Output)
CL e 15 pF
CL e 50 pF
Units
Min
Max
Min
Max
tPLH
Propagation Delay Time
Data to
75
11
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Data to
65
10
ns
High to Low Level Output
Output
tPLH
Propagation Delay Time
Select to
15
16
ns
Low to High Level Output
Output
tPHL
Propagation Delay Time
Select to
15
16
ns
High to Low Level Output
Output
tPZH
Output Enable Time
Output
195
23
ns
to High Level Output
Control to Y
tPZL
Output Enable Time
Output
21
24
ns
to Low Level Output
Control to Y
tPHZ
Output Disable Time
Output
85
ns
to High Level Output (Note 1)
Control to Y
tPLZ
Output Disable Time
Output
14
ns
to Low Level Output (Note 1)
Control to Y
Note 1
CL e 5 pF
Recommended Operating Conditions
Symbol
Parameter
DM54S258
DM74S258
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
08
08
V
IOH
High Level Output Current
b
2
b
65
mA
IOL
Low Level Output Current
20
20
mA
TA
Free Air Operating Temperature
b
55
125
0
70
C
’S258 Electrical Characteristics
over recommended operating free air temperature (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
VI
Input Clamp Voltage
VCC e Min II eb18 mA
b
12
V
VOH
High Level Output
VCC e Min IOH e Max
DM54
24
34
V
Voltage
VIL e Max VIH e Min
DM74
24
32
VOL
Low Level Output
VCC e Min IOL e Max
05
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
Select
100
m
A
Current
VI e 27V
Other
50
IIL
Low Level Input
VCC e Max
Select
b
4
mA
Current
VI e 05V
Other
b
2
3


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