SN54/74LS390
•
SN54/74LS393
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
VIH
VIL
VIK
VOH
Parameter
Input HIGH Voltage
54
Input LOW Voltage
74
Input Clamp Diode Voltage
54
Output HIGH Voltage
74
54, 74
VOL
Output LOW Voltage
74
Input HIGH Current
0.1
MR
IIL
Input LOW Current
CP, CP0
CP1
IOS
ICC
Short Circuit Current (Note 1)
Power Supply Current
– 20
– 0.4
– 1.6
– 2.4
– 100
26
0.35
0.5
20
IIH
V
µA
mA
mA
mA
mA
mA
mA
VCC = MAX
VCC = MAX
VCC = MAX, VIN = 0.4 V
2.7
3.5
0.25
0.4
V
V
2.5
– 0.65
3.5
0.8
– 1.5
V
V
Min
2.0
0.7
V
Typ
Max
Unit
V
Test Conditions
Guaranteed Input HIGH Voltage for
All Inputs
Guaranteed Input LOW Voltage for
All Inputs
VCC = MIN, IIN = – 18 mA
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IOL = 4.0 mA
IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25°C, VCC = 5.0 V)
Limits
Symbol
fMAX
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPHL
Parameter
Maximum Clock Frequency
CP0 to Q0
Maximum Clock Frequency
CP1 to Q1
Propagation Delay,
CP to Q0
CP0 to Q0
CP to Q3
CP0 to Q2
CP1 to Q1
CP1 to Q2
CP1 to Q3
MR to Any Output
LS393
LS390
LS393
LS390
LS390
LS390
LS390
LS390/393
Min
25
20
12
13
12
13
40
40
37
39
13
14
24
26
13
14
24
20
20
20
20
60
60
60
60
21
21
39
39
21
21
39
Typ
35
Max
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions
CL = 15 pF
FAST AND LS TTL DATA
5-547
MOTOROLA [ MOTOROLA, INC ]
