Obsolete Product(s) - Obsolete Product(s)
74ALVCH16244
5/10
AC ELECTRICAL CHARACTERISTICS
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t
OSLH
=|t
PLHm
-t
PLHn
|, t
OSHL
=|t
PHLm
-t
PHLn
|)
2) Parameter guaranteed by design
CAPACITIVE CHARACTERISTICS
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
=C
PD
xV
CC
xf
IN
+I
CC
/16 (per
circuit)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
C
L
(pF)
R
L
(Ω)
t
s
= t
r
(ns)
-40 to 85 °C -55 to 125 °C
Min. Max. Min. Max.
t
PLH
t
PHL
Propagation Delay
Time
1.65 to 1.95 30 1000 2.0 1 5.1 1 5.1
ns
2.3 to 2.7 30 500 2.0 1 3.7 1 3.7
2.7 50 500 2.5 1 3.6 1 3.6
3.0 to 3.6 50 500 2.5 1 3.0 1 3.0
t
PZL
t
PZH
Output Enable Time 1.65 to 1.95 30 1000 2.0 1 7.1 1 7.1
2.3 to 2.7 30 500 2.0 1 5.7 1 5.7
2.7 50 500 2.5 1 5.4 1 5.4
3.0 to 3.6 50 500 2.5 1 4.4 1 4.4
t
PLZ
t
PHZ
Output Disable Time 1.65 to 1.95 30 1000 2.0 1 6.5 1 6.5
2.3 to 2.7 30 500 2.0 1 5.2 1 5.2
2.7 50 500 2.5 1 4.6 1 4.6
3.0 to 3.6 50 500 2.5 1 4.1 1 4.1
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
=25°C
Min. Typ. Max.
C
IN
Input Capacitance Control
Inputs
3.3
V
IN
=V
CC
or GND
3pF
C
IN
Input Capacitance Data Inputs
3.3
V
IN
=V
CC
or GND
6pF
C
OUT
Output Capacitance
3.3
V
IN
= 0 to V
CC
7pF
C
PD
Power Dissipation Capacitance
Output enabled (note 1)
3.3 f
IN
= 10MHz
C
L
=50pF
V
IN
= 0 or V
CC
19
pF
2.5 16
C
PD
Power Dissipation Capacitance
Output disabled (note 1)
3.3 5
2.5 4
