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54LS161A Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54LS161A
Description  Synchronous 4-Bit Binary Counters
Download  12 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54LS161A Datasheet(HTML) 5 Page - National Semiconductor (TI)

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’LS163 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
25
34
V
Voltage
VIL e Max VIH e Min
DM74
27
34
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 4 mA VCC e Min
DM74
025
04
II
Input Current
Max
VCC e Max
Enable T
02
Input Voltage
VI e 7V
Clock Clear
02
mA
Load
02
Others
01
IIH
High Level Input
VCC e Max
Enable T
40
Current
VI e 27V
Load
40
m
A
Clock Clear
40
Others
20
IIL
Low Level Input
VCC e Max
Enable T
b
08
Current
VI e 04V
Clock Clear
b
08
mA
Load
b
08
Others
b
04
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
18
31
mA
Outputs High
(Note 3)
ICCL
Supply Current with
VCC e Max
18
32
mA
Outputs Low
(Note 4)
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
ICCH is measured with the load high then again with the load low with all other inputs high and all outputs open
Note 4
ICCL is measured with the clock input high then again with the clock input low with all other inputs low and all outputs open
’LS163 Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 2kX
Symbol
Parameter
To (Output)
CL e 15 pF
CL e 50 pF
Units
Min
Max
Min
Max
fMAX
Maximum Clock Frequency
25
20
MHz
tPLH
Propagation Delay Time
Clock to
25
30
ns
Low to High Level Output
Ripple Carry
tPHL
Propagation Delay Time
Clock to
30
38
ns
High to Low Level Output
Ripple Carry
tPLH
Propagation Delay Time
Clock to Any Q
22
27
ns
Low to High Level Output
(Load High)
tPHL
Propagation Delay Time
Clock to Any Q
27
38
ns
High to Low Level Output
(Load High)
5


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