LSF0204: Question about LSF0204.

Takashi Sato

Part Number: LSF0204

Hi Team,

In the figure written in [10.2.3 Multiple Voltage Translation in Single Device, Application] of the data sheet,
The signal on the A3 pin is pulled up.

If the GPIO of the device connected to the B3 pin is Push-Pull, I don't think the A3 pin needs to be pulled up.
Is this perception correct?

Best regards.

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 243080 points

That circuit is wrong, because the supply voltage of the device at the right side is only 1 V, which is lower than Vref_A.

Whether the signal at B3 needs a pull-up does not depend on the output type at A3; see section 5.2 of the Voltage-Level Translation With the LSF Family application report.

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LSF0204: Question about LSF0204.