There are lots of ways to shift logic levels. But for versatility in a small footprint,
it's hard to beat Fairchild's FXL2TD245
dual-supply bi-directional translator, with
its configurability for both uni-directional
and independent bi-directional voltage
translation between two logic levels.
The chip permits translation between
levels from 3.6 V down to 1.1 V (). A control pin sets the data flow
direction, and each side's VCC pin sets the
levels. The translator saves a few days of
engineering time while squeezing a complete solution into a small package. In fact,
the IC is 0.55 by 1.6 by 2.1 mm—much
smaller than the usual SOICs. Yet the 10terminal MicroPak has more pad-contact
area than other leadless packages.
It costs $0.85 in 1000-piece lots.
Fairchild Semiconductor
www.fairchildsemi.com