74AHC_AHCT3G04 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 3 — 26 March 2013 6 of 14
NXP Semiconductors
74AHC3G04; 74AHCT3G04
Inverter
[1] t
pd
is the same as t
PLH
and t
PHL
.
[2] Typical values are measured at V
CC
= 3.3 V.
[3] Typical values are measured at V
CC
= 5.0 V.
[4] C
PD
is used to determine the dynamic power dissipation (P
D
in W).
P
D
=C
PD
V
CC
2
f
i
N+(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 V;
N = number of inputs switching;
(C
L
V
CC
2
f
o
) = sum of the outputs.
12. Waveforms
74AHCT3G04
t
pd
propagation
delay
nA to nY;
V
CC
= 4.5 V to 5.5 V
[1]
[3]
C
L
= 15 pF - 3.4 6.7 1.0 7.5 1.0 8.5 ns
C
L
= 50 pF - 4.9 7.7 1.0 8.5 1.0 10.0 ns
C
PD
power
dissipation
capacitance
per buffer;
C
L
=50pF;f
i
= 1 MHz;
V
I
=GNDtoV
CC
[4]
-10- - - - - pF
Table 8. Dynamic characteristics
…continued
GND = 0 V; for test circuit see Figure 7.
Symbol Parameter Conditions 25 C 40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max Min Max
Fig 6. The input (nA) to output (nY) propagation delays.
mna344
t
PHL
t
PLH
V
M
V
M
V
M
V
M
nA input
nY output
GND
V
I
V
OH
V
OL
Table 9. Measurement points
Type Input Output
V
M
V
M
74AHC3G04 0.5V
CC
0.5V
CC
74AHCT3G04 1.5 V 0.5V
CC