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Application Notes

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Modern trends are driving the need for lower supply voltages across many system-level designs. As most processor voltage levels continue to decrease in the interest of achieving the lowest possible power consumption, peripheral devices maintain a need for higher voltage levels, creating potential for voltage discontinuities within a system. To remedy this mixed voltage system incompatibility, a voltage translator can be used. Texas Instruments High Volume Linear group offers a wide-range of voltage level translators. A variety of architectures provide solutions for different application environments including dual-supply direction-controlled, auto-direction sensing, and application-specific memory card interface translators. The information in this application report is intended to help system designers understand the architecture and operation of the TXS-type auto-direction sensing translator family.