Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Voltage at Any Pin
V
SS
b
0.3V to V
SS
a
12V
b
65
§
C to
a
150
§
C
Storage Temperature
Power Dissipation at 25
§
C
Molded DIP Package, Board Mount
Molded DIP Package, Socket Mount
2.4W
*
2.1W
**
150
§
C
300
§
C
Junction Temperature
Lead Temperature (Soldering, 10 sec.)
*
Molded DIP Package, Board Mount,
i
JA
e
52
§
C/W, Derate 19.2 mW/
§
C
above 25
§
C.
**
Molded DIP Package, Socket Mount,
i
JA
e
58
§
C/W, Derate 17.2 mW/
§
C
above 25
§
C.
Electrical Characteristics
T
A
e b
25
§
C to
a
85
§
C, V
DD
e
4.75V to 11.0V, V
SS
e
0V unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
DD
Power Supply
4.75
11
V
I
DD
Power Supply Current
Excluding Output Loads
7
mA
V
IL
Input Voltage
Logical ‘‘0’’ Level
g
10
m
A Input Bias
b
0.3
0.8
V
V
IH
Input Voltage
Logical ‘‘1’’ Level
4.75V
s
V
DD
s
5.25V
2.2
V
DD
V
V
DD
l
5.25V
V
DD
b
2
V
DD
V
I
BR
Brightness Input Current
(Note 2)
0
0.75
mA
I
OH
Output Sink Current (Note 3)
Segment OFF
V
OUT
e
3.0V
10.0
m
A
I
OL
Output Sink Current (Note 3)
Segment ON
V
OUT
e
1V
Brightness Input
e
0
m
A
Brightness Input
e
100
m
A
Brightness Input
e
750
m
A
0
10.0
4.0
25.0
m
A
mA
mA
2.0
15.0
2.7
V
IBR
Brightness Input Voltage
(Pin 13)
Input Current
e
750
m
A
3.0
4.3
V
OM
Output Matching (Note 1)
g
20
%
AC Electrical Characteristics
T
A
e b
25
§
C to
a
85
§
C, V
DD
e
5V
g
0.5V
Symbol
Parameter
Conditions
Min
Typ
Max
Units
f
C
Clock Input Frequency
(Notes 5 and 6)
DC
500
kHz
t
h
High Time
950
ns
t
l
Low Time
950
ns
t
DS
Data Input Set-Up Time
300
ns
t
DH
Data Input Hold Time
300
ns
Note 1:
Output matching is calculated as the percent variation from (I
MAX
a
I
MIN
)/2.
Note 2:
With a fixed resistor on the brightness input pin some variation in brightness will occur from one device to another. Maximum brightness input current can
be 2 mA as long as Note 3 and junction temperature equation are complied with.
Note 3:
Absolute maximum for each output should be limited to 40 mA.
Note 4:
The V
OUT
voltage should be regulated by the user.
Note 5:
AC input waveform specification for test purpose: t
r
s
20 ns, t
f
s
20 ns, f
e
500 kHz, 50%
g
10% duty cycle.
Note 6:
Clock input rise and fall times must not exceed 300 ns.
2