SN54/74LS48
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
T
A
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°C
I
I
I
Output Current — High
Output Current — High
Output Current — Low
a to g
54, 74
54, 74
–100
–50
µA
µA
OH
OH
OL
BI/RBO
a to g
54
74
2.0
6.0
mA
I
Output Current — Low
BI/RBO
BI/RBO
54
74
1.6
3.2
mA
OL
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Min
Typ
Max
Guaranteed Input HIGH Voltage for
All Inputs
V
IH
2.0
V
54
74
0.7
0.8
Guaranteed Input LOW Voltage for
All Inputs
V
V
V
Input LOW Voltage
V
V
IL
Input Clamp Diode Voltage
Output HIGH Voltage
–1.5
V
CC
= MIN, I = –18 mA
IN
IK
V
V
= MIN, I = –50 µA,
OH
CC
IN
2.4
4.2
µA
OH
= V or U.L. per Truth Table
IH
V
= MIN, V = 0.85 V
O
CC
I
O
Output Current a to g
–1.3
–2.0
mA
Input Conditioner as for V
OH
54, 74
74
0.4
0.5
0.4
0.5
20
V
V
I
I
I
I
= 2.0 mA
= 6.0 mA
= 1.6 mA
= 3.2 mA
V
V
= MIN, V = 2.0 V
= V MAX
IL
OL
OL
OL
OL
CC
IL
IH
V
Output LOW Voltage a to g
OL
OL
54, 74
74
V
Output LOW Voltage
BI/RBO
V
V
= MAX, V = 2.0 V
CC
IL
IH
V
= V MAX
IL
V
µA
mA
V
= MAX, V = 2.7 V
IN
Input HIGH Current
(Except BI/RBO)
CC
CC
I
I
IH
0.1
V
= MAX, V = 7.0 V
IN
Input LOW Current
(Except BI/RBO)
–0.4
mA
V
= MAX, V = 0.4 V
IN
IL
CC
I
I
I
Input LOW Current BI/RBO
Power Supply Current
–1.2
38
mA
mA
mA
V
CC
V
CC
V
CC
= MAX, V = 0.4 V
IN
IL
25
= MAX
= MAX
CC
OS
Short Circuit Current BI/RBO (Note 1)
–0.3
–2.0
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (V
CC
= 5.0 V, T = 25°C)
A
Limits
Typ
Symbol
Parameter
Unit
Test Conditions
Min
Max
Propagation Delay Time, HIGH-to-LOW
Level Output from A Input
t
t
t
t
100
ns
PHL
C
C
= 15 pF, R = 4.0 kΩ
L
L
L
Propagation Delay Time, LOW-to-HIGH
Level Output from A Input
100
100
100
ns
ns
ns
PLH
PHL
PLH
Propagation Delay Time, HIGH-to-LOW
Level Output from RBI Input
= 15 pF, R = 6.0 kΩ
L
Propagation Delay Time, LOW-to-HIGH
Level Output from RBI Input
FAST AND LS TTL DATA
5-61
MOTOROLA [ MOTOROLA ]
