DM74LS155 Fairchild Semiconductor, DM74LS155 Datasheet - Page 4

• Manufacturer Part Number: DM74LS155
• Description: Dual 2-Line to 4-Line Decoders/Demultiplexers
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
V
I
V
I
I
I
I
t
t
t
t
t
t
V
V
V
V
I
T
CEX
I
IH
IL
CC
PLH
PHL
PLH
PHL
PLH
PHL
DM74LS156 Recommended Operating Conditions
DM74LS156 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 7: All typicals are at V
Note 8: I
DM74LS156 Switching Characteristics
OL
I
OL
at V
Symbol
A
Symbol
CC
IH
IL
OH
Symbol
CC
CC
5V and T
is measured with all outputs OPEN, A, B, and C1 inputs at 4.5V, and C2, G1, and G2 GROUNDED.
Input Clamp Voltage
HIGH Level
Output Current
LOW Level
Output Voltage
Input Current @ Max Input Voltage
HIGH Level Input Current
LOW Level Input Current
Supply Current
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
LOW Level Output Current
Free Air Operating Temperature
25 C
CC
Parameter
Parameter
5V, T
A
25 C.
Parameter
V
V
V
V
V
I
V
V
V
V
OL
CC
CC
IL
CC
IL
CC
CC
CC
CC
Max, V
Max, V
4 mA, V
Min, I
Min, V
Min, I
Max, V
Max, V
Max, V
Max (Note 8)
From (Input)
A, B, C2, G1
A, B, C2, G1
To (Output)
or G2 to Y
or G2 to Y
A or B
A or B
to Y
to Y
to Y
to Y
C1
C1
I
OL
IH
IH
O
CC
I
I
I
Conditions
18 mA
7V
2.7V
0.4V
5.5V
Min
Min
Max
4
Min
4.75
Min
2
0
Min
C
L
15 pF
Nom
Max
5
Min
28
33
28
33
28
34
R
L
2 k
(Note 7)
0.35
0.25
Typ
Min
6.1
C
Max
5.25
0.8
5.5
L
70
8
50 pF
Max
Max
100
0.5
0.4
0.1
0.36
53
43
53
43
53
43
20
10
1.5
Units
mA
V
V
V
V
C
Units
Units
mA
mA
mA
ns
ns
ns
ns
ns
ns
V
V
A
A