Logic selection guide 2016
1Sk34oD
1Sk34oD
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LOW DELAY ISOLATION<br />
What it does<br />
Enables the isolation of outputs on the same bus line<br />
without introducing significant delay.<br />
Where you’ll find it<br />
NXP’s CBT(D) and CBTLV(D) families of bus switches<br />
provide isolation with a propagation delay of just 250 ps.<br />
Why it’s important<br />
The propagation delay of 3-state buffers used for output<br />
isolation can seriously impact the timing margin, and this<br />
can be a critical issue in certain designs, including large<br />
synchronous backplane applications.<br />
Low delay<br />
isolation<br />
5 V 3.3 V 2.5 V 1.8 V 1.2 V<br />
CBT(D)<br />
CBTLV(D)<br />
V CC<br />
= 5 V<br />
CBTD3384<br />
CBT3384<br />
OE<br />
3 V CPU<br />
5 V CPU<br />
3 V MEMORY<br />
3 V<br />
5 V<br />
5 V I/O<br />
3 V 5 V<br />
CBT/CBTD3384 switch application<br />
24 NXP <strong>Logic</strong> <strong>selection</strong> <strong>guide</strong> <strong>2016</strong>