Does the STM32F401RB's I2S port drive current?

[HungKai.Chien]

The STM32F401's VDD is 3.3V.

The I2S Codec's VDD is 1.8V.

We will add the Level chip(TXB0104) on

The device driving the data I/Os of the TXB0104 device must have drive strength of at least ±2 mA.

Does the STM32F401RB's I2S port drive current more than 2mA?

[waclawek.jan]

Look at the I/O port characteristics chapter in Datasheet.

However, check, if the level conversion won't introduce unacceptable delay between SCK and data in the longest route, i.e. if STM32 is master, between clocks from STM32 and the data from Codec to STM32, as those involve delay of signals passing through the level convertor twice.

JW