Frequent Questions

  • [FAQ] MCU-PLUS-SDK-AM243X: How-to test FSI external 1-device loopback on AM243x LP or EVM

    Part Number: MCU-PLUS-SDK-AM243X Other Parts Discussed in Thread: SYSCONFIG Tool/software: Hi, AM243x MCU SDK includes an FSI internal loopback example, but I would like to test an external loopback in my board. How can I do it?

  • [FAQ] AM263P4: How to debug XiP application in AM263PX

    Part Number: AM263P4 Other Parts Discussed in Thread: UNIFLASH Tool/software: H ow to create and debug XIP application in AM263PX (DEV/OSPI boot mode)?

  • [FAQ] AM625: What's the purpose for the pull down R on MMC_CLK?

    Part Number: AM625 Tool/software: Dear Sir, May I know what the purpose for the pull down R on MMC_CLK signal on TI EVM?

  • [FAQ] How can I level shift up to 30 V?

    Other Parts Discussed in Thread: TXH0137D FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Existing level-shifters typically support up to 18 V. For up to 30 V, see the TXH0137D family highlighted below. …

  • [FAQ] What is the VIH / VIL required for a Schmitt-Trigger device?

    FAQ: Logic and Voltage Translation > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Consider the worst-case values in the electrical characteristics table; VT+(max) and VT−(min) are what matters for VIH and VIL respectively. See Understanding Schmitt…

  • [FAQ] How can I choose a high drive strength device?

    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ Choosing a high drive strength device depends on the below: Static DC drive strength: Drive required for a constant HIGH…

  • [FAQ] TXB0304 oscillates but TXB0104 works, why?

    Other Parts Discussed in Thread: TXB0304 , TXB0104 FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters >> Current FAQ The most common reason is due to impedance mismatches. TXB0304 specifies a stronger output impedance than TXB0104…

  • [FAQ] How can I mitigate TXB / TXS oscillation concerns?

    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters >> Current FAQ To mitigate oscillation concerns with devices with edge rate accelerators / one-shots such as TXB / TXS devices, consider below: Short enough traces for round…

  • [FAQ] Can I estimate appropriate dampening resistor value for level-shifter outputs?

    FAQ: Logic and Voltage Translation > Auto-Bidirectional Level-Shifters > Fixed DIR / DIR CNTRL Level-Shifters >> Current FAQ When in doubt, use a 0 ohm series resistor on the outputs and adjust accordingly, for your system needs. This can also be…

  • [FAQ] UCC5880-Q1: Simplifying Software Integration with UCC588X-Q1-CDD (Complex Device Driver)

    What is UCC588X-Q1-CDD and how can it simplify the software integration of UCC588X-Q1 into the system?

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