MAX3222E: What is the type of the pin EN?

Charlie Xiao

Part Number: MAX3222E

Hi,

What is the type of the pin EN?

Can EN be directly grounded? Or do EN need to connect a resistor to ground? Is it a high level or a low level if it is left floating? Thanks.

Best Regards

Charlie Xiao

over 2 years ago

+1 Clemens Ladisch over 2 years ago

Guru 316470 points

The I_I specification implies that /EN is a plain CMOS input. You can ground it directly or through a resistor. It must not float; see [FAQ] How does a slow or floating input affect a CMOS device?

+1 Tyler Townsend over 2 years ago

TI__Mastermind 47008 points

Hi Charlie,

Please tie CMOS input /EN pin directly to ground through a resistor. The CMOS input must not float or else you may experience uncontrolled behavior on the /EN pin, see Clemens' attached FAQ.

Regards,

Tyler

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MAX3222E: What is the type of the pin EN?