PCA9306: EN Logic HIGH level

Roger Lin

Part Number: PCA9306
Other Parts Discussed in Thread: LSF0002

Tool/software:

Hi team,

My customer want to use 1.8V as their EN LOGIC HIGH level, and I saw the D/S shows the Min as Vref1+0.6(1.8V), Typ 2.1V

Does 1.8V will be too margin to be triggered? The recommended level is 1.8V or 2.1V?

Thanks

0 Clemens Ladisch 3 months ago

Guru 317480 points

The typical values do not make sense in a requirements table. Ignore them.

What is the actual application? What are the two voltage you want to translate between?

The LSF0002 would be easier to use.

+1 Tyler Townsend 3 months ago

HI Roger,

The range is given for optimal prop delays across the device.

Making EN = 1.8V will decrease performance in prop delays ~ (nanosecond range) which does not affect I2C signal integrity.

Regards,

Tyler

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