LSF0102: LSF0102DCUR

Vidhya J

Intellectual 505 points

Part Number: LSF0102

Tool/software:

Hi Team,

I am using this level translator for MDC/MDIO , reset, interrupt connections.

Pull up to be placed on either sides (pins 3,4,5,6?)

Pull up value can be 4.7K ?

Thanks and Regards,

Vidhya

3 months ago

0 Jack Guan 3 months ago

TI__Mastermind 30616 points

Hi Vidhya,

Pullups are recommended on both the inputs and outputs of IC42. For IC76, pullups are needed on B2, but optional on A1/A2/B1 if both RESET and INT signals are push-pull driver based.

The value of the pullups are selected based on the desired speed on the signals. For estimation, this equation can be used:

Regards,

Jack

Regards,

Jack

0 Vidhya J 3 months ago in reply to Jack Guan

Intellectual 505 points

For IC42, adding 4.7K pull up as recommended by the receiver device.

Also, same pullup value is to be used on either side as it is a PASS device?

+1 Jack Guan 3 months ago in reply to Vidhya J

TI__Mastermind 30616 points

Hi Vidhya,

Vidhya J said:
Also, same pullup value is to be used on either side as it is a PASS device?

This is not a firm design requirement for the device, though note that during a logic LOW, the pullups on the I/Os will become parallel.

Regards,

Jack

0 Vidhya J 3 months ago in reply to Jack Guan

Intellectual 505 points

Thanks Jack.

Logic

Logic forum

LSF0102: LSF0102DCUR