15.04.2016 Views

Logic selection guide 2016

1Sk34oD

1Sk34oD

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

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>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!