SN74LS85
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
V
IH
V
IL
V
IK
V
OH
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
2.7
– 0.65
3.5
0.25
V
O
OL
Output LOW Voltage
0.35
Input HIGH Current
A < B, A > B
Other Inputs
A < B, A > B
Other Inputs
I
IL
I
OS
I
CC
Input LOW Current
A < B, A > B
Other Inputs
Output Short Circuit Current (Note 1)
Power Supply Current
– 20
0.5
V
µA
I
OL
= 8.0 mA
0.4
Min
2.0
0.8
– 1.5
Typ
Max
Unit
V
V
V
V
V
Test Conditions
Guaranteed Input HIGH Voltage for
All Inputs
Guaranteed Input LOW Voltage for
All Inputs
V
CC
= MIN, I
IN
= – 18 mA
V
CC
= MIN, I
OH
= MAX, V
IN
= V
IH
or V
IL
per Truth Table
I
OL
= 4.0 mA
V
CC
= V
CC
MIN,
V
IN
= V
IL
or V
IH
per Truth Table
I
IH
20
60
0.1
0.3
– 0.4
– 1.2
–100
20
V
CC
= MAX, V
IN
= 2.7 V
mA
V
CC
= MAX, V
IN
= 7.0 V
mA
mA
mA
V
CC
= MAX, V
IN
= 0.4 V
V
CC
= MAX
V
CC
= MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(T
A
= 25°C, V
CC
= 5.0 V)
Limits
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Parameter
Any A or B to A < B, A > B
Any A or B to A = B
A < B or A = B to A > B
A = B to A = B
A > B or A = B to A < B
Min
Typ
24
20
27
23
14
11
13
13
14
11
Max
36
30
45
45
22
17
20
26
22
17
Unit
ns
ns
ns
ns
ns
V
CC
= 5.0 V
C
L
= 15 pF
Test Conditions
AC WAVEFORMS
V
IN
1.3 V
t
PHL
1.3 V
t
PLH
1.3 V
V
IN
1.3 V
t
PHL
1.3 V
t
PLH
1.3 V
V
OUT
1.3 V
V
OUT
1.3 V
Figure 3.
Figure 4.
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