74VHC138 STMicroelectronics, 74VHC138 Datasheet - Page 3

• Manufacturer Part Number: 74VHC138
• Description: 3 TO 8 LINE DECODER INVERTING
• Manufacturer: STMicroelectronics

DC SPECIFICATIONS
AC ELECTRICAL CHARACTERISTICS (Input t
(*) Voltage range is 3.3V 0.3V
(**) Voltage range is 5V 0.5V
CAPACITIVE CHARACTERISTICS
1) C
Test Circuit).Average operating current can be obtained by the following equation. I
Symb ol
Symb ol
Symb ol
V
C
V
t
t
PD
C
V
I
V
PLH
PHL
V
CC
OH
I
OL
PD
t+
IN
t-
I
h
isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
High Level Threshold
Voltage
Low Level Threshold
Voltage
Hysteresis Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage Current
Quiescent Supply
Current
Propagation Delay
Time
Input Capacitance
Power Dissipation
Capacitance (note 1)
Parameter
Parameter
Parameter
0 to 5.5
5.0
5.0
3.3
3.3
V
V
(V)
3.0
3.0
3.0
4.5
(V)
4.5
5.5
4.5
5.5
4.5
5.5
2.0
3.0
4.5
3.0
4.5
2.0
3.0
3.0
4.5
5.5
CC
CC
(**)
(**)
(*)
(*)
T est Cond ition s
T est Cond ition s
Test Co ndition
(pF )
V
V
C
15
50
15
50
I
I
L
= 5.5V or GND
= V
I
I
I
I
O
I
I
I
I
O
O
O
I
I
O
O
O
O
O
O
=-50 A
=-50 A
=-50 A
=50
r
=-4 mA
=-8 mA
=50 A
=50 A
=4 mA
=8 mA
CC
= t
or GND
f
=3 ns)
A
CC
(opr) = C
Min.
Min.
Min.
3.15
3.85
2.58
3.94
2.2
0.3
0.4
0.5
1.9
2.9
4.4
PD
T
T
T
V
A
A
A
CC
Typ .
Typ .
Typ .
= 25
= 25
= 25
10.1
2.0
3.0
4.5
0.0
0.0
0.0
7.6
4.9
6.4
16
4
f
IN
+ I
o
o
o
CC
C
C
C
Value
Value
Value
Max.
Max.
Max.
/4 (per Gate)
1.35
1.65
0.36
0.36
11.9
15.4
0.9
1.2
1.4
1.6
0.1
0.1
0.1
7.7
9.7
10
0.1
2
-40 to 85
-40 to 85
-40 to 85
Min .
Min .
Min .
3.15
3.85
2.48
2.2
0.3
0.4
0.5
1.9
2.9
4.4
3.8
1.0
1.0
1.0
1.0
Max.
Max.
Max.
1.35
1.65
0.44
0.44
14.0
17.5
11.0
0.9
1.2
1.4
1.6
0.1
0.1
0.1
9.0
20
10
1.0
74VHC132
o
o
o
C
C
C
Un it
Un it
Un it
pF
ns
pF
V
V
V
V
V
A
A
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