74ls194a National Semiconductor Corporation, 74ls194a Datasheet - Page 2

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74ls194a

Manufacturer Part Number
74ls194a
Description
4-bit Bidirectional Universal Shift Register
Manufacturer
National Semiconductor Corporation
Datasheet

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V
V
V
I
I
f
t
t
t
t
T
V
V
V
I
I
I
I
I
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
Note 1 C
Note 2 C
Note 3 T
Electrical Characteristics
Symbol
Note 4 All typicals are at V
Note 5 Not more than one output should be shorted at a time and the duration should not exceed one second
Note 6 With all outputs open inputs A through D grounded and 4 5V applied to S0 S1 CLEAR and the serial inputs I
4 5V applied to CLOCK
OH
OL
CLK
W
SU
H
REL
I
IH
IL
OS
CC
A
CC
IH
IL
I
OH
OL
54LS
DM74LS
L
L
A
e
e
e
15 pF T
50 pF R
25 C and V
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Clock Frequency (Note 1)
Clock Frequency (Note 2)
Pulse Width
(Note 3)
Setup Time
(Note 3)
Hold Time (Note 3)
Clear Release Time (Note 3)
Free Air Operating Temperature
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
A
L
e
e
Parameter
CC
CC
25 C and V
2 kX T
e
e
5V
Parameter
5V T
A
Max
e
A
CC
25 C and V
e
e
Clock
Clear
Mode
Data
25 C
5V
b
b
CC
over recommended operating free air temperature range (unless otherwise noted)
55 C to
65 C to
V
V
V
V
V
I
V
V
V
V
(Note 5)
V
e
OL
CC
CC
IL
CC
IL
CC
CC
CC
CC
CC
0 C to
(Note)
5V
e
e
e
e
e
e
e
e
e
e
e
Max V
Max V
4 mA V
a
a
Min I
Min I
Min I
Max V
Max V
Max V
Max
Max (Note 6)
a
125 C
150 C
70 C
Conditions
I
OH
OL
7V
7V
b
IH
IH
Min
4 5
e b
30
22
17
12
25
16
18
CC
I
I
I
2
0
55
e
e
e
e
e
e
e
e
7V
2 7V
0 4V
Min
Min
Max
18 mA
2
Max
Min
54LS194A
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
Nom
5
54LS
DM74
54LS
DM74
54LS
DM74
b
Max
125
5 5
0 7
4
0
0 4
b
b
Min
2 5
2 7
20
20
4 75
Min
20
20
30
20
25
2
0
0
0
0
CC
DM74LS194A
(Note 4)
is tested with momentary ground then
0 35
Typ
3 4
15
Nom
5
b
b
b
b
b
Max
Max
5 25
0 4
0 5
0 4
0 1
20
23
0 8
25
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

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