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  • SN74AXCH8T245: For RGMII

    Resolved
    Part Number: SN74AXCH8T245 Other Parts Discussed in Thread: TXV0106-Q1 , SN74AUC34 , TXV0108-Q1 Hi, Does SN74AXCH8T245 suitable for below application? We need to use it for the signals on Ethernet MAC GMII. 1.5V to 1.8V (1.8V to 1.5V). The signals include…
    • Resolved
    • Answered

  • RE: 1.8V JTAG Buffers / Drivers

    Resolved
    SN74AUC34/17, or SN74LVC125A if lower drive strength suffices.
    • Answered

  • SN74AUC34: Part Help

    Resolved
    Part Number: SN74AUC34 Hi, I am trying to use this SN74AUC34 device as a fanout buffer for my ADC SCLK. I had a few questions, though, regarding on how to set it up, as the datasheet doesn't give too much information. 1. How should I bypass Vcc? …
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  • SN74AXC4T774: How many device can be drive??

    TI Thinks Resolved
    Part Number: SN74AXC4T774 Other Parts Discussed in Thread: SN74AUC34 , SN74AUC2G34 Hi, I want use a SN74AXC4T774PW to drive many SPI device. How many device can be drive?? System spec.: 1: level shift 3.3V => 1.2V 2: use the many SPE_CS pin to select…
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  • RE: SN74LV8T245: SPI line driver speed up to 133Mbit/s

    Resolved
    At 1.8 V, you need a low-voltage logic family like AUC, e.g., SN74AUC125 or SN74AUC34.
    • Answered

  • SN74AUC34: Vcc bypass capacitors, unused inputs, unused outputs, and pull-up or pull down resistors and calculations

    Resolved
    Part Number: SN74AUC34 I am using the TI part SN74AUC34 for fanout. What I am trying to understand is what kind of input bypass capacitance should I use on VCC? Is a 0.1uF cap enough? Also the data sheet mentions that the unused inputs should be tied…
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  • RE: TLV9032: Ouput drive capability

    Did you mean to say "from 1.2 V", and not "to 1.2 V"? What are the two voltages you want to shift between? Would it be possible to use a higher supply voltage, and shift the result back down to 1.2 V with a logic buffer (e.g., SN74AUC34…
    • Answered

  • RE: SN74AVC4T234: Maximum data rate at 1.2V / 80 MHz clock and 160 Mbps DDR data rate

    Resolved
    One clock cycle consists of two pulses, high and low, which corresponds to two bits. So 80 MHz = 160 Mbps, which is too fast for this device. Better use a low-voltage logic family like AUC. For level-shifting to a lower voltage, you can simply use a buffer…

  • RE: SN74LVC125A: Need SPI and PCM bus buffer

    LVC is optimized for 3.3 V. At 1.8 V, it supports only 40 MHz. You should use AUC family devices, e.g., SN74AUC125 or SN74AUC34, which support 125 MHz. Furthermore, AUC outputs have additional features to improve signal quality.
    • Answered

  • RE: TXB0304: driver strength

    Resolved
    The TXB is always bidirectional; its output drivers on both sides are always active. The 3 mA drive strength requirement is necessary to ensure that external devices can overpower the TXB outputs. For this application (unidirectional downtranslation)…

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