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54LS169 数据表(PDF) 3 Page - Texas Instruments

部件名 54LS169
功能描述  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS
Download  10 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

54LS169 数据表(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
DM54LS169A
DM74LS169A
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
04
b
04
mA
IOL
Low Level Output Current
4
8
mA
fCLK
Clock Frequency (Note 1)
0
25
0
25
MHz
Clock Frequency (Note 2)
0
20
0
20
MHz
tW
Clock Pulse Width (Note 3)
25
25
ns
tSU
Setup Time
Data
20
20
(Note 3)
Enable
20
20
T or P
ns
Load
25
25
UD
30
30
tH
Hold Time (Note 3)
0
0
ns
TA
Free Air Operating Temperature
b
55
125
0
70
C
Note 1
CL e 15 pF RL e 2kX TA e 25 C and VCC e 5V
Note 2
CL e 50 pF RL e 2kX TA e 25 C and VCC e 5V
Note 3
TA e 25 C and VCC e 5V
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 4)
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
mA
Input Voltage
VI e 7V
Others
01
IIH
High Level Input
VCC e Max
Enable T
40
m
A
Current
VI e 27V
Others
20
IIL
Low Level Input
VCC e Max
Enable T
b
08
mA
Current
VI e 04V
Others
b
04
IOS
Short Circuit
VCC e Max
DM54
b
20
b
100
mA
Output Current
(Note 5)
DM74
b
20
b
100
ICC
Supply Current
VCC e Max (Note 6)
20
34
mA
Note 4
All typicals are at VCC e 5V and TA e 25 C
Note 5
Not more than one output should be shorted at a time and the duration should not exceed one second
Note 6
ICC is measured after a momentary 45V then ground is applied to the CLOCK with all other inputs grounded and all the outputs open
2


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