TLC2932A: TEST pin

itabi

Part Number: TLC2932A
Other Parts Discussed in Thread: CDCE913

Hello,

I have a question about TEST pin of TLC2932A.

Does the 8pin have internal pull-down？
It is written that Connect to GND in the datasheet.
If this pin left NC, is there any problems?

Best regards,
itabi

over 5 years ago

0 Noel Fung over 5 years ago

TI__Guru* 96480 points

Hi itabi,

This is a rather old device, we couldn't find the details. In fact, we do not recommend using this part for new design.
My view is, if the normal operation of this device does not require grounding the TEST pin, I don't see a difference in grounding or floating this pin. Maybe you can use a resistor to shunt this pin to ground. Then you have the flexibility of grounding or floating this pin.

Once again, this device is not recommended for new design. Please pick a more recent device, if available.

0 itabi over 5 years ago in reply to Noel Fung

Expert 1295 points

Hi Noel,

Thank you for your reply.
What is your recommendation similar device for new design?

Regards,
itabi

0 Noel Fung over 5 years ago in reply to itabi

TI__Guru* 96480 points

Hi itabi,

TLC2932A is a PLL with VCO, are you using it as a clock generator? What is your target frequency?

0 itabi over 5 years ago in reply to Noel Fung

Expert 1295 points

Hi Noel,

Thank you for your support.
We decided to consider CDCE913.

Regards,
itabi

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TLC2932A: TEST pin