Philips CBTD3306 - Manual (Page 7)

CBTD3306 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 8 — 1 May 2012 7 of 17
NXP Semiconductors
CBTD3306
Dual bus switch with level shifting
11. Dynamic characteristics
[1] The propagation delay is the calculated RC time constant of the typical ON resistance of the switch and the specified load capacitance,
when driven by an ideal voltage source (zero output impedance).
[2] t
pd
is the same as t
PLH
and t
PHL
.
t
en
is the same as t
PZL
and t
PZH
.
t
dis
is the same as t
PLZ
and t
PHZ
.
12. Waveforms
Table 8. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 13 .
Symbol Parameter Conditions T
amb
= −40 °C to +85 °C Unit
Min Typ Max
t
pd
propagation delay nA, nB to nB, nA; see Figure 11 [1][2] - - 0.25 ns
V
CC
= 5.0 V ± 0.5 V
t
en
enable time nOE to nA or nB; see Figure 12 [2] 1.0 - 5.4 ns
V
CC
= 5.0 V ± 0.5 V
t
dis
disable time nOE to nA or nB; see Figure 12 [2] 1.0 - 4.9 ns
V
CC
= 5.0 V
± 0.5 V
Measurement points are given in Table 9 .
Logic levels: V
OL
and V
OH
are typical output voltage levels that occur with the output load.
Fig 11. The data input (nA, nB) to output (nB, nA) propagation delay times
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t PLH t PHL
V M
V M
nB, nA
output
nA, nB
input
V
I
GND
V OH
V
OL