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54LS161AFMQB View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54LS161AFMQB Synchronous 4-Bit Binary Counters National-Semiconductor
National ->Texas Instruments National-Semiconductor
54LS161AFMQB Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
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
7V
Operating Free Air Temperature Range
DM54LS and 54LS
b55 C to a125 C
DM74LS
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
Parameter
VCC
Supply Voltage
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
IOH
High Level Output Current
IOL
Low Level Output Current
fCLK
Clock Frequency (Note 1)
Clock Frequency (Note 2)
tW
Pulse Width
Clock
(Note 1)
Clear
Pulse Width
(Note 2)
Clock
Clear
tSU
Setup Time
Data
(Note 1)
Enable P
Load
Setup Time
(Note 2)
Data
Enable P
Load
tH
Hold Time
Data
(Note 1)
Others
Hold Time
(Note 2)
Data
Others
tREL
Clear Release Time (Note 1)
Clear Release Time (Note 2)
TA
Free Air Operating Temperature
Note 1 CL e 15 pF RL e 2 kX TA e 25 C and VCC e 5 5V
Note 2 CL e 50 pF RL e 2 kX TA e 25 C and VCC e 5 5V
DM54LS161A
Min
Nom
Max
45
5
55
2
07
b0 4
4
0
25
0
20
20
6
20
9
25
25
20
8
25
17
25
15
20
30
30
0
b3
0
b3
5
5
20
25
b55
125
DM74LS161A
Min
Nom
Max
4 75
5
5 25
2
08
b0 4
8
0
25
0
20
20
6
20
9
25
25
20
8
25
17
25
15
20
30
30
0
b3
0
b3
5
5
20
25
0
70
Units
V
V
V
mA
mA
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
C
2
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