Datasheet

74VHC14 Electrical characteristics
Doc ID 5741 Rev 9 7/16
Table 7. AC electrical characteristics (input t
r
= t
f
= 3 ns)
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
C
L
(pF)
T
A
= 25 °C -40 to 85 °C -55 to 125 °C
Min. Typ. Max. Min. Max. Min. Max.
t
PLH
t
PHL
Propagation delay
time
3.3
(1)
15 8.3 12.8 1.0 15.0 1.0 15.0
ns
3.3
(1)
50 10.8 16.3 1.0 18.5 1.0 18.5
5.0
(2)
15 5.5 8.6 1.0 10.0 1.0 10.0
5.0
(2)
50 7.0 10.6 1.0 12.0 1.0 12.0
1. Voltage range is 3.3 V ± 0.3 V.
2. Voltage range is 5.0 V ± 0.5 V.
Table 8. Capacitive characteristics
Symbol Parameter
Test condition Value
UnitT
A
= 25 °C -40 to 85 °C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
C
IN
Input capacitance 6 10 10 10 pF
C
PD
Power dissipation
capacitance
(1)
14 pF
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 Section 5: Test circuit). Average operating current can be obtained by the following
equation. I
CC
(opr) = C
PD
x V
CC
x f
IN
+ I
CC
/6 (per gate).
Table 9. Dynamic switching characteristics
Symbol Parameter
Test condition Value
Unit
V
CC
(V)
T
A
= 25 °C -40 to 85 °C -55 to 125 °C
Min. Typ. Max. Min. Max. Min. Max.
V
OLP
Dynamic low
voltage quiet
output
(1)
,
(2)
5.0
C
L
= 50 pF
0.3 0.8
V
V
OLV
-0.8 -0.3
V
IHD
Dynamic high
voltage input
(1)
,
(3)
5.0 3.5 V
V
ILD
Dynamic low
voltage input
(1)
,
(3)
5.0 1.5 V
1. Worst case package.
2. Max number of outputs defined as (n). Data inputs are driven 0 V to 5.0 V, (n-1) outputs switching and one output at GND.
3. Max number of data inputs (n) switching. (n-1) switching 0 V to 5.0 V. Inputs under test switching: 5.0 V to threshold (V
ILD
),
0 V to threshold (V
IHD
), f = 1 MHz.