LSF0204D: Level shift I2C and PWM signals from 3.3V to 1.2V

Vishnu Balaraj

Part Number: LSF0204D
Other Parts Discussed in Thread: SN74AUC1G125, LSF0102, LSF-EVM

Hi Team,

I'm designing an EVM for a Motor driver IC. In my EVM, I have an MSP430 which outputs I²C signals (SCL and SDA) and PWM signal. Logic levels of all three signals are 3.3V. I want to check if LSF0204D can level shift all three signal from 3.3V to 1.2V. If LSF0204D cannot meet these requirements, can you suggest any other part?

1.2V SCL and SDA lines at the output will have an external pull up resistor.

Regards,

Vishnu

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 318050 points

Yes, the LSF0204D will work.

The only alternative would be to combine the LSF0102 and a buffer with overvoltage-tolerant input like the SN74AUC1G125.

0 Vishnu Balaraj over 3 years ago in reply to Clemens Ladisch

TI__Mastermind 24415 points

Thanks Clemens. Is there an EVM for LSF0204D? Can you share the part number of the EVM if available?

Regards,

Vishnu

0 Clemens Ladisch over 3 years ago in reply to Vishnu Balaraj

Guru 318050 points

To check whether an LSF-EVM exists, look at the LSF0204D web page.

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LSF0204D: Level shift I2C and PWM signals from 3.3V to 1.2V