74HC_HCT1G14_Q100 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 2 — 27 December 2012 6 of 16
NXP Semiconductors
74HC1G14-Q100; 74HCT1G14-Q100
Inverting Schmitt trigger
[1] t
pd
is the same as t
PLH
and t
PHL
.
[2] C
PD
is used to determine the dynamic power dissipation P
D
(W).
P
D
=C
PD
V
CC
2
f
i
+ (C
L
V
CC
2
f
o
)where:
f
i
= input frequency in MHz; f
o
= output frequency in MHz
C
L
= output load capacitance in pF; V
CC
= supply voltage in Volts
(C
L
V
CC
2
f
o
) = sum of outputs
13. Waveforms
For type 74HCT1G14-Q100
t
pd
propagation delay A to Y; see Figure 5
[1]
V
CC
= 4.5 V; C
L
=50pF - 17 43 - 51 ns
V
CC
= 5.0 V; C
L
=15pF - 15 - - - ns
C
PD
power dissipation
capacitance
V
I
=GNDtoV
CC
1.5 V
[2]
-22- - -pF
Table 8. Dynamic characteristics
…continued
GND = 0 V; t
r
= t
f
6.0 ns; All typical values are measured at T
amb
=25
C. For test circuit see Figure 6
Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max
Measurement points are given in Tab le 9.
Fig 5. The input (A) to output (Y) propagation delays
mna033
A input
Y output
t
PHL
t
PLH
V
M
V
M
Table 9. Measurement points
Type number Input Output
V
I
V
M
V
M
74HC1G14-Q100 GND to V
CC
0.5 V
CC
0.5 V
CC
74HCT1G14-Q100 GND to 3.0 V 1.5 V 0.5 V
CC
