LSF0101: Need Values for Noise Margin Calculation

Anoop Kumar K V

Part Number: LSF0101

What are the values of Voh(min), Vol(Max), Vih(Min) and Vil(Max) of LSF0101DRY (1-Bit Bidirectional Voltage Level Translator)?

Note: 1) Could not find the values from the datasheet.

2) Schematics section is shown above

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 316660 points

The pull-up resistor on the B side is missing (unless GPIO_1 is always driven by a push/pull output).

The LSF is a passive switch and does not have V_IL/V_IH/V_OL/V_OH levels. See LSF0102 The value of VIH VIL VOH VOL.

The voltage at VREF_A is near the switching threshold of the pass transistor. Assuming that the direction is from B to A, any voltage above 1.8 V at B will result in a high output at A, and any voltage below 1.8 V at B will result in that voltage at A.

0 Anoop Kumar K V over 5 years ago in reply to Clemens Ladisch

Prodigy 180 points

Thank You

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LSF0101: Need Values for Noise Margin Calculation