AM6442: Minimum current of pull up when boot mode setting.

Philip%20Park

Part Number: AM6442

Hi Champs,

My customer want to optimize BOM and Board size.

So BOOTMOD2_8_10_11 is connected to several boot mode pin.

If only one GPMC_ADn is connected to BOOTMOD2_8_10_11, the current is 0.7mA.

But BOOTMOD2_8_10_11 is connected to 4 GPMC_ADn. the current is 0.17mA.

Would there be any problem?

I think because input leakage current is 10uA, there are no problem.

What is minimum current?

+1 Kallikuppa Sreenivasa over 2 years ago

Hello Philip Park,

Thank you for the query.

We do not allow shorting of the bootmode configuration pin. These pins have alternate configurations after boot.

Regards,

Sreenivasa

0 Kallikuppa Sreenivasa over 2 years ago

Hello Philip Park,

The Bootmode configuration inputs are LVCMOS inputs.

Philip%20Park said:
I think because input leakage current is 10uA, there are no problem.

What is minimum current?

You can use the datasheet value for leakage.

Do note that choice of resistor value is dependent on the configuration approach being followed.

Refer EVM or SK as a starting point.

Regards,

Sreenivasa

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