Datasheet

74AVCH16T245 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 5 — 1 March 2012 13 of 29
NXP Semiconductors
74AVCH16T245
16-bit dual supply translating transceiver; 3-state
[1] t
pd
is the same as t
PLH
and t
PHL
; t
dis
is the same as t
PLZ
and t
PHZ
; t
en
is the same as t
PZL
and t
PZH
.
[1] t
pd
is the same as t
PLH
and t
PHL
; t
dis
is the same as t
PLZ
and t
PHZ
; t
en
is the same as t
PZL
and t
PZH
.
Table 10. Typical dynamic characteristics at V
CC(A)
= 0.8 V and T
amb
= 25 C
[1]
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 8; for wave forms see Figure 6 and Figure 7
Symbol Parameter Conditions V
CC(B)
Unit
0.8 V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V
t
pd
propagation delay nAn to nBn 14.4 7.0 6.2 6.0 5.9 6.0 ns
nBn to nAn 14.4 12.4 12.1 11.9 11.8 11.8 ns
t
dis
disable time nOE to nAn 16.2 16.2 16.2 16.2 16.2 16.2 ns
nOE
to nBn 17.6 10.0 9.0 9.1 8.7 9.3 ns
t
en
enable time nOE to nAn 21.9 21.9 21.9 21.9 21.9 21.9 ns
nOE
to nBn 22.2 11.1 9.8 9.4 9.4 9.6 ns
Table 11. Typical dynamic characteristics at V
CC(B)
= 0.8 V and T
amb
= 25 C
[1]
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 8; for wave forms see Figure 6 and Figure 7
Symbol Parameter Conditions V
CC(A)
Unit
0.8 V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V
t
pd
propagation delay nAn to nBn 14.4 12.4 12.1 11.9 11.8 11.8 ns
nBn to nAn 14.4 7.0 6.2 6.0 5.9 6.0 ns
t
dis
disable time nOE to nAn 16.2 5.9 4.4 4.2 3.1 3.5 ns
nOE
to nBn 17.6 14.2 13.7 13.6 13.3 13.1 ns
t
en
enable time nOE to nAn 21.9 6.4 4.4 3.5 2.6 2.3 ns
nOE
to nBn 22.2 17.7 17.2 17.0 16.8 16.7 ns