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SN74LV165A: Could we connect SN74LV165A CLK_INH pin to GND directly?

Hsing Yu Lin
Prodigy 170 points
Part Number: SN74LV165A

From TI reference design schematic, the CLK_INH pin connect to GND directly.

Does that CLK_INH always LOW be fine?

What happen if the SH/LD is "LOW"? Does IC will ignore the CLK and stop output serial data?

  • 0
    Guru 299450 points

    Connecting CLK_INH to GND is fine.

    The datasheet says:

    The parallel inputs to the register are enabled while SH/LD is held low, independently of the levels of CLK, CLK INH, or SER.

    So in this state, the QH output always outputs the current value of the H input.