74LVQ138 STMICROELECTRONICS [STMicroelectronics], 74LVQ138 Datasheet - Page 5

• Manufacturer Part Number: 74LVQ138
• Description: 3 TO 8 LINE DECODER INVERTING
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

AC ELECTRICAL CHARACTERISTICS (C
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any twooutputs of the same device switching in the
same direction, either HIGH or LOW (t
2) Parameter guaranteed by design
(*) Voltage range is 3.3V 0.3V
CAPACITIVE CHARACTERISTICS
1) C
Test Circuit).Average operting current can be obtained by the following equation. I
TEST CIRCUIT
C
R
R
Symb ol
Symb ol
L
L
T
= 50 pF or equivalent (includes jigand probe capacitance)
= R
= Z
t
t
C
t
t
t
t
t
t
OSLH
OSHL
PD
C
PLH
PHL
PLH
PHL
PLH
PHL
PD
IN
OUT
1
isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
= 500 orequivalent
of pulse generator (typically 50 )
Propagation Delay Time
A, B, C to Y
Propagation Delay Time
G1 to Y
Propagation Delay Time
G2A or G2B to Y
Output to Output Skew
Time (note 1, 2)
Input Capacitance
Power Dissipation
Capacitance (note 1)
Parameter
Parameter
OSLH
= |t
PLHm
- t
3.3
3.3
3.3
3.3
PLHn
V
V
3.3
(V)
2.7
2.7
2.7
2.7
(V)
3.3
CC
CC
|, t
(*)
(*)
(*)
(*)
Test Co nditions
OSHL
T est Con ditio n
= |t
L
= 50 pF, R
PHLm
f
IN
- t
pHLn
= 10 MHz
|)
L
CC
(opr) = C
= 500 , Input t
PD
Min.
Min.
V
CC
T
T
A
A
f
= 25
T yp.
= 25
T yp.
IN
7.0
5.5
7.0
5.5
7.0
5.5
0.5
0.5
50
+ I
5
r
CC
= t
o
o
f
C
C
Valu e
Valu e
Max.
Max.
=3 ns)
17.0
12.0
17.0
12.0
17.0
12.0
1.5
1.5
-40 to 85
-40 to 85
Min.
Min.
Max.
Max.
20.0
14.0
20.0
14.0
20.0
14.0
1.5
1.5
74LVQ138
o
o
C
C
Un it
Un it
pF
ns
ns
ns
ns
pF
5/9