74AHC_AHCT04 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 6 — 7 November 2011 7 of 15
NXP Semiconductors
74AHC04; 74AHCT04
hex inverter
[1] Typical values are measured at nominal supply voltage (V
CC
= 3.3 V and V
CC
=5.0V).
[2] t
pd
is the same as t
PLH
and t
PHL
.
[3] 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.
11. Waveforms
74AHCT04; V
CC
= 4.5 V to 5.5 V
t
pd
propagation
delay
nA to nY; see Figure 6
[2]
C
L
= 15 pF - 3.0 6.7 1.0 7.5 1.0 8.5 ns
C
L
= 50 pF - 4.5 7.7 1.0 8.5 1.0 10.0 ns
C
PD
power
dissipation
capacitance
f
i
= 1 MHz; V
I
=GNDtoV
CC
[3]
- 13.9 - - - - - pF
Table 7. Dynamic characteristics
…continued
Voltages are referenced to GND (ground = 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
[1]
Max Min Max Min Max
Measurement points are given in Table 8.
V
OH
and V
OL
are typical output voltage drop that occur with the output load.
Fig 6. Input to output propagation delay
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 8. Measurement points
Type Input Output
V
M
V
M
74AHC04 0.5 V
CC
0.5 V
CC
74AHCT04 1.5 V 0.5 V
CC
