FTDI Community

General Category => Discussion - Hardware => Topic started by: t0nyl2 on May 08, 2020, 03:54:33 PM

Title: FT313H Test mode vs Normal mode
Post by: t0nyl2 on May 08, 2020, 03:54:33 PM

To use the TESTMODE (50h) and TESTPMSET1/2 (70h/74h) on the FT313H, must the TESTEN pin be pulled up?

Is it acceptable to have the TESTEN pulled down externally for normal operation or should it be left floating?

Title: Re: FT313H Test mode vs Normal mode
Post by: FTDI Community on May 13, 2020, 04:31:35 PM

Hello,

As per the FT313H Datasheet (https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT313H.pdf) TESTEN pin is to Enable test mode. It has an Internal pull-down.

For normal operation leave floating.

Best Regards,
FTDI Community