Datasheet

74VHC_VHCT126_1 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 01 — 13 August 2009 7 of 15
NXP Semiconductors
74VHC126; 74VHCT126
Quad buffer/line driver; 3-state
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 8.
Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ
[1]
Max Min Max Min Max
74VHC126
t
pd
propagation
delay
nA to nY; see Figure 6
[2]
V
CC
= 3.0 V to 3.6 V
C
L
= 15 pF - 4.7 8.0 1.0 9.5 1.0 10.0 ns
C
L
= 50 pF - 6.7 11.5 1.0 13.0 1.0 14.5 ns
V
CC
= 4.5 V to 5.5 V
C
L
= 15 pF - 3.3 5.5 1.0 6.5 1.0 7.0 ns
C
L
= 50 pF - 4.7 7.5 1.0 8.5 1.0 9.5 ns
t
en
enable time nOE to nY; see Figure 7
[3]
V
CC
= 3.0 V to 3.6 V
C
L
= 15 pF - 5.3 8.0 1.0 9.5 1.0 10.0 ns
C
L
= 50 pF - 7.6 11.5 1.0 13.0 1.0 14.5 ns
V
CC
= 4.5 V to 5.5 V
C
L
= 15 pF - 3.6 5.3 1.0 6.1 1.0 7.0 ns
C
L
= 50 pF - 5.1 7.6 1.0 8.7 1.0 9.5 ns
t
dis
disable time nOE to nY; see Figure 7
[4]
V
CC
= 3.0 V to 3.6 V
C
L
= 15 pF - 6.6 9.7 1.0 11.5 1.0 12.5 ns
C
L
= 50 pF - 9.4 13.2 1.0 15.0 1.0 16.5 ns
V
CC
= 4.5 V to 5.5 V
C
L
= 15 pF - 4.7 6.8 1.0 8.0 1.0 8.5 ns
C
L
= 50 pF - 6.7 8.8 1.0 10.0 1.0 11.0 ns
C
PD
power
dissipation
capacitance
f
i
= 1 MHz;
V
I
= GND to V
CC
[5]
-10- - - - -pF
74VHCT126; 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 5.5 1.0 6.5 1.0 7.0 ns
C
L
= 50 pF - 4.3 7.5 1.0 8.5 1.0 9.5 ns
t
en
enable time nOE to nY; see Figure 7
[3]
C
L
= 15 pF - 3.3 5.1 1.0 6.0 1.0 6.5 ns
C
L
= 50 pF - 4.7 7.1 1.0 8.0 1.0 9.0 ns
t
dis
disable time nOE to nY; see Figure 7
[4]
C
L
= 15 pF - 4.8 6.8 1.0 8.0 1.0 8.5 ns
C
L
= 50 pF - 6.9 8.9 1.0 10.0 1.0 11.5 ns
C
PD
power
dissipation
capacitance
f
i
= 1 MHz;
V
I
= GND to V
CC
[5]
-12- - - - -pF