Datasheet

74AVCH2T45 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 6 — 2 April 2013 13 of 27
NXP Semiconductors
74AVCH2T45
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
12. Waveforms
[1] V
CCI
is the supply voltage associated with the data input port.
[2] V
CCO
is the supply voltage associated with the output port.
Measurement points are given in Table 14
.
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 6. The data input (nA, nB) to output (nB, nA) propagation delay times
001aak114
nA, nB input
nB, nA output
t
PLH
t
PHL
GND
V
I
V
OH
V
M
V
M
V
OL
Measurement points are given in Table 14.
V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 7. Enable and disable times
001aae968
t
PZL
t
PZH
t
PHZ
t
PLZ
GND
GND
V
I
V
CCO
V
OL
V
OH
V
M
V
M
V
M
V
X
V
Y
outputs
disabled
outputs
enabled
outputs
enabled
output
LOW-to-OFF
OFF-to-LOW
output
HIGH-to-OFF
OFF-to-HIGH
DIR input
Table 14. Measurement points
Supply voltage Input
[1]
Output
[2]
V
CC(A)
, V
CC(B)
V
M
V
M
V
X
V
Y
1.1 V to 1.6 V 0.5V
CCI
0.5V
CCO
V
OL
+0.1V V
OH
 0.1 V
1.65 V to 2.7 V 0.5V
CCI
0.5V
CCO
V
OL
+0.15V V
OH
 0.15 V
3.0 V to 3.6 V 0.5V
CCI
0.5V
CCO
V
OL
+0.3V V
OH
 0.3 V