Diodes 74HCT14 - Manual (Page 4)

74HCT14
Document number: DS35333 Rev. 2 - 2
4 of 8
www.diodes.com
January 2013
© Diodes Incorporated
74HCT14
Switching Characteristics
Symbol Parameter
Test
Conditions
V
CC
T
A
= +25°C -40°C to +85°C -40°C to +125°C
Unit
Min Typ Max Max Max
t
PD
Propagation
Delay A
N
to Y
N
Figure 1
C
L
= 50pF
4.5V — 20 34 43 51 ns
t
t
Transition Time
Figure 1
C
L
= 50pF
4.5V — 7 15 19 22 ns
Operating Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Parameter Test Conditions
V
CC
= 5.5 V
Unit
Typ
C
pd
Power Dissipation
Capacitance per Gate
f = 1MHz 15 pF
C
I
Input Capacitance V
I
= V
CC
– or GND 4 pF
Parameter Measurement Information
V
CC
Inputs
V
M
C
L
V
I
t
r
/t
f
4.5V 3.0V 3ns 1.5V V
OH
/2
Voltage Waveform
Pulse Duration
Voltage Waveform
Propagation Delay Times
Inverting and Non Inverting Outputs
Notes: A. Includes test lead and test apparatus capacitance.
B. All pulses are supplied at pulse repetition rate ≤ 1 MHz.
C. Inputs are measured separately one transition per measurement.
D. t
PLH
and t
PHL
are the same as t
PD
.
Figure 1 Load Circuit and Voltage Waveforms