dm74ls190 National Semiconductor Corporation, dm74ls190 Datasheet - Page 2

• Manufacturer Part Number: dm74ls190
• Description: Synchronous 4-bit Up/down Counters With Mode Control
• Manufacturer: National Semiconductor Corporation

Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
Recommended Operating Conditions
Symbol
V
V
V
I
I
f
t
t
t
t
T
’LS190 and ’LS191 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
V
V
V
I
I
I
I
I
Note 1 All typicals are at V
Note 2 Not more than one output should be shorted at a time and the duration should not exceed one second
Note 3 I
Note 4 T
OH
OL
CLK
W
SU
H
EN
I
IH
IL
OS
CC
A
I
OH
OL
CC
IH
IL
DM54LS
DM74LS
CC
A
e
is measured with all inputs grounded and all outputs open
25 C and V
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current
Input Voltage
High Level Input
Current
Low Level Input
Current
Short Circuit
Output Current
Supply Current
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Clock Frequency (Note 4)
Pulse Width
(Note 4)
Data Setup Time (Note 4)
Data Hold Time (Note 4)
Enable Time to Clock (Note 4)
Free Air Operating Temperature
Parameter
CC
CC
e
e
Parameter
5V
5V T
Max
A
e
25 C
Clock
Load
V
V
V
V
I
V
V
V
V
V
V
V
(Note 2)
V
OL
b
b
V
CC
CC
IL
CC
CC
I
CC
I
CC
I
CC
CC
IL
e
e
e
55 C to
65 C to
e
e
e
e
e
e
e
e
e
e
e
0 C to
7V
2 7V
0 4V
(Note)
Max V
4 mA V
Max V
Min I
Min I
Min I
Max
Max
Max
Max
Max (Note 3)
a
a
a
Conditions
I
OH
OL
125 C
150 C
IH
e b
IH
CC
70 C
b
Min
4 5
25
35
20
30
e
e
2
0
0
e
7V
7V
55
e
e
DM54LS190 LS191
Min
Max
Max
Min
18 mA
Min
2
Nom
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
Note The ‘‘Absolute Maximum Ratings’’ are those values
5
Enable
Enable
Enable
Others
Others
Others
DM54
DM74
DM54
DM74
DM74
DM54
DM74
b
Max
125
5 5
0 7
20
4
0 4
b
b
Min
2 5
2 7
20
20
4 75
Min
25
35
20
30
0
2
0
0
DM74LS190 LS191
(Note 1)
0 25
0 35
0 25
Typ
3 4
3 4
20
Nom
5
b
b
b
b
b
b
Max
Max
5 25
0 4
0 5
0 4
0 3
0 1
60
20
35
0 8
1 08
20
70
100
100
1 5
0 4
8
0 4
Units
Units
MHz
mA
mA
mA
mA
mA
mA
mA
ns
ns
ns
ns
V
V
V
V
V
V
C