TXB0104: Need state of Output when there is no input on either side with Enable HIGH

Bhargav Pendurthi1

Part Number: TXB0104
Other Parts Discussed in Thread: TXB0108

Hello,

I am using TXB0104 and TXB0108 bidirectional level shifter buffer parts in my design. I would like to know when the Enable line is High and the data transfer from A to B, and when the data is not available, what is the state of output?

Thank You

Regards,

Bhargav Pendurthi

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 317370 points

If there is no external signal, the outputs will hold their last state. After powering up, the state might be either low or high.

0 Bhargav Pendurthi1 over 4 years ago in reply to Clemens Ladisch

Prodigy 100 points

That means, HIgh impedance state? is the OE line in disable state same as no external signal input?

0 Clemens Ladisch over 4 years ago in reply to Bhargav Pendurthi1

Guru 317370 points

If OE is low, all outputs are disabled, i.e., all TXB I/Os are in high impedance state.

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TXB0104: Need state of Output when there is no input on either side with Enable HIGH