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74151 Datasheet Download - National Semiconductor

Номер произв 74151
Описание Data Selectors/Multiplexers
Производители National Semiconductor
логотип National Semiconductor логотип 

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74151 Даташит, Описание, Даташиты
June 1989
54150 DM54150 DM74150
54151A DM54151A DM74151A
Data Selectors Multiplexers
General Description
These data selectors multiplexers contain full on-chip de-
coding to select the desired data source The 150 selects
one-of-sixteen data sources the 151A selects one-of-eight
data sources The 150 and 151A have a strobe input which
must be at a low logic level to enable these devices A high
level at the strobe forces the W output high and the Y output
(as applicable) low
The 151A features complementary W and Y outputs where-
as the 150 has an inverted (W) output only
The 151A incorporates address buffers which have sym-
metrical propagation delay times through the complementa-
ry paths This reduces the possibility of transients occurring
at the output(s) due to changes made at the select inputs
even when the 151A outputs are enabled (i e strobe low)
Features
Y 150 selects one-of-sixteen data lines
Y 151A selects one-of-eight data lines
Y Performs parallel-to-serial conversion
Y Permits multiplexing from N lines to one line
Y Also for use as Boolean function generator
Y Typical average propagation delay time data input to W
output
150 11 ns
151A 9 ns
Y Typical power dissipation
150 200 mW
151A 135 mW
Y Alternate Military Aerospace device (54150 54151A) is
available Contact a National Semiconductor Sales Of-
fice Distributor for specifications
Connection Diagrams
Dual-In-Line Package
Dual-In-Line Package
TL F 6546 – 1
Order Number 54150DQMB 54150FMQB
DM54150J or DM74150N
See NS Package Number J24A N24A or W24C
TL F 6546 – 2
Order Number 54151ADMQB 54151AFMQB
DM54151AJ DM54151AW or DM74151AN
See NS Package Number J16A N16E or W16A
C1995 National Semiconductor Corporation TL F 6546
RRD-B30M105 Printed in U S A







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74151 Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
5 5V
Operating Free Air Temperature Range
DM54 and 54
b55 C to a125 C
DM74
0 C to a70 C
Storage Temperature Range
b65 C to 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
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
Min
45
2
b55
DM54150
Nom
5
Max
55
08
b0 8
16
125
Min
4 75
2
0
DM74150
Nom
5
Max
5 25
08
b0 8
16
70
Units
V
V
V
mA
mA
C
’150 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
VOH
VOL
II
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current Max
Input Voltage
VCC e Min II e b12 mA
VCC e Min IOH e Max
VIL e Max VIH e Min
VCC e Min IOL e Max
VIH e Min VIL e Max
VCC e Max VI e 5 5V
24
IIH
High Level Input Current
VCC e Max VI e 2 4V
IIL
Low Level Input Current
VCC e Max VI e 0 4V
IOS Short Circuit
Output Current
VCC e Max
(Note 2)
DM54
DM74
b20
b18
ICC Supply Current
VCC e Max (Note 3)
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
Note 3 ICC is measured with the strobe and data select inputs at 4 5V all other inputs and outputs open
Typ
(Note 1)
40
Max
b1 5
04
1
40
b1 6
b55
b55
68
Units
V
V
V
mA
mA
mA
mA
mA
2







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74151 Даташит, Описание, Даташиты
’150 Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
From (Input)
To (Output)
RL e 400X CL e 15 pF
Min Max
tPLH
Propagation Delay Time
Select
Low to High Level Output
to W
35
tPHL
Propagation Delay Time
Select
High to Low Level Output
to W
33
tPLH
Propagation Delay Time
Strobe
Low to High Level Output
to W
24
tPHL
Propagation Delay Time
Strobe
High to Low Level Output
to W
30
tPLH
Propagation Delay Time
E0-E15
Low to High Level Output
to W
20
tPHL
Propagation Delay Time
E0-E15
High to Low Level Output
to W
14
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
Min
45
2
b55
DM54151A
Nom
5
Max
55
08
b0 8
16
125
Min
4 75
2
0
DM74151A
Nom
5
Max
5 25
08
b0 8
16
70
Units
ns
ns
ns
ns
ns
ns
Units
V
V
V
mA
mA
C
3










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