dm74ls259 National Semiconductor Corporation, dm74ls259 Datasheet - Page 2

• Manufacturer Part Number: dm74ls259
• Description: 8-bit Addressable Latches
• 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
t
t
t
T
Electrical Characteristics
Symbol
V
V
V
I
I
I
I
I
Note 1 The symbols (
Note 2 Setup and hold times are with reference to the enable input
Note 3 The select-to-enable setup time is the time before the High-to-Low enable transition that the select must be stable so that the correct latch is selected and
the others not affected
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 I
Note 7 T
I
IH
IL
OS
CC
OH
OL
W
SU
H
CC
IH
IL
A
I
OH
OL
DM54
DM74LS
CC
A
e
is measured with all inputs at 4 5V 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
Enable
Short Circuit
Output Current
Supply Current
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Pulse Width
(Note 7)
Setup Time
(Notes 1 2 3
Hold Time
(Notes 1 2
Free Air Operating Temperature
v u
Parameter
CC
CC
) indicate the edge of the clock pulse used for reference
e
e
Parameter
5V
5V T
7)
Max
7)
A
e
25 C
Enable
Clear
Data
Select
Data
Select
V
V
V
V
V
I
V
V
V
V
V
(Note 5)
V
OL
b
b
CC
CC
IL
CC
IL
CC
CC
CC
CC
CC
CC
over recommended operating free air temperature range (unless otherwise noted)
55 C to
65 C to
e
e
e
e
e
e
e
e
e
e
e
e
0 C to
(Note)
Max V
Max V
4 mA V
Min I
Min I
Min I
Max V
Max V
Max V
Max V
Max
Max (Note 6)
a
a
a
I
OH
OL
V
Conditions
IH
IH
125 C
150 C
20
15
b
e b
Min
5
0
CC
I
I
I
I
I
70 C
4 5
17
17
2
u
u
e
e
e
e
e
e
e
55
e
u
v
e
7V
7V
e
7V
10V
2 7V
0 4V
0 4V
Min
Min
Max
18 mA
Max
Min
DM54LS259
2
Nom
5
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
u
DM54
DM74
DM54
DM74
DM74
DM74
DM54
DM54
DM74
for rising edge
b
Max
125
5 5
0 7
4
0 4
v
b
b
Min
2 5
2 7
for falling edge
20
20
2 5
2 5
15
15
4 75
Min
15
15
2
0
u
v
u
u
DM74LS259
(Note 4)
0 35
0 25
Typ
3 4
22
Nom
5
b
b
b
b
b
b
Max
Max
5 25
0 4
0 5
0 4
0 1
0 8
20
36
70
100
100
8
1 5
0 4
0 8
0 4
Units
Units
mA
mA
mA
mA
mA
mA
mA
ns
ns
ns
V
V
V
V
V
V
C