Absolute Maximum Ratings
Above which the useful life may be impaired
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Storage Temperature
Maximum Junction Temperature (T
J
)
Supply Voltage Range
Input Voltage (DC)
Output Current (DC Output HIGH)
Operating Range
Lead Temperature
(Soldering 10 sec )
b
65 C to
a
150 C
a
150 C
b
7 0V to GND
Recommended Operating
Conditions
Min
Ambient Temperature (T
A
)
Commercial
Military
Supply Voltage (V
EE
)
Commercial
Military
0C
b
55 C
b
5 7V
b
5 7V
b
5 2V
b
5 2V
Typ
Max
a
75 C
a
125 C
b
4 7V
b
4 7V
V
EE
to GND
b
50 mA
b
5 7V to
b
4 7V
300 C
TTL Input Output Operation
DC Electrical Characteristics
Over Operating Temperature and Voltage Range unless otherwise noted Pins 12 and 13
e
GND
Symbol
V
IH
V
IL
V
OH
V
OL
I
IL
I
SC
Parameter
Input HIGH Voltage
M
1
and M
2
Inputs
Input LOW Voltage
M
1
and M
2
Inputs
Output HIGH Voltage
QTTL Output
Output LOW Voltage
QTTL Output
Input LOW Current
M
1
and M
2
Inputs
Output Short Circuit
Current
b
20
Min
Typ
(Note 3)
41
33
Max
Units
V
V
V
Conditions
Guaranteed Input HIGH Threshold
Voltage (Note 4) V
CC
e
V
CCA
e
5 0V
Guaranteed Input LOW Threshold
Voltage (Note 4) V
CC
e
V
CCA
e
5 0V
V
CC
e
V
CCA
e
Min
I
OH
e b
640
mA
V
CC
e
V
CCA
e
Min
I
OL
e
20 0 mA
V
CC
e
V
CCA
e
Max
V
IN
e
0 4V Pins 6 7
e
V
CC
V
CC
e
V
CCA
e
Max
V
OUT
e
0 0V Pin 14
e
V
CC
23
33
02
b
2 3
b
35
05
b
5 0
b
80
V
mA
mA
AC Electrical Characteristics
V
CC
e
V
CCA
e
5 0V Nominal V
EE
e
GND T
A
e a
25 C
Symbol
t
PLH
t
PHL
t
PLH
t
s
t
h
t
TLH
t
THL
f
MAX
Parameter
Propagation Delay (50% to 50%)
CP to QTTL
Propagation Delay (50% to 50%)
MS to QTTL
Mode Control Setup Time
Mode Control Hold Time
Output Rise Time
(20% to 80%)
Output Fall Time
(80% to 20%)
Count Frequency
550
600
4
0
Min
6
Typ
10
12
2
b
2
Max
14
17
Units
ns
ns
ns
ns
ns
ns
MHz
Conditions
See
Figure 1
10
2
650
650
b
55 C to
a
125 C
0 C to
a
75 C
Clock Input AC Coupled
350 mV Peak-to-Peak
Sinewave (Note 5)
2
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